def colorMapFigure(): L = normalizeVector(np.array([-0.2, 0.3, 0.7])) N_32F, A_32F = normalSphere(h=512, w=512) fig, axes = plt.subplots(figsize=(6, 4)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.98, bottom=0.02, hspace=0.1, wspace=0.1) fig.suptitle("", fontsize=font_size) num_rows = 4 num_cols = 6 plot_grid = SubplotGrid(num_rows, num_cols) for colormap_file in colorMapFiles(): M_32F = loadColorMap(colormap_file) C_32F = ColorMapShader(M_32F).diffuseShading(L, N_32F) plot_grid.showImage(setAlpha(C_32F, A_32F), "") file_path = os.path.join(colorMapResultsDir(), "ColorMapMaterials.png") fig.savefig(file_path, transparent=True)
def _runLayer(self, layer_file): C0_8U = loadRGBA(layer_file) if C0_8U is None: return A_8U = alpha(C0_8U) if A_8U is None: return C0_32F = to32F(rgb(C0_8U)) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) sfs_method = Wu08SFS(L, C0_32F, A_8U) sfs_method.run() N_32F = sfs_method.normal() fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 1 num_cols = 2 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(C0_8U, r"Shading: $C$") plot_grid.showImage(normalToColor(N_32F, A_8U), r"Estimated Normal: $N$") showMaximize()
def computeErrorTables(Lg=normalizeVector(np.array([-0.2, 0.3, 0.6]))): colormap_files = colorMapFiles() shape_names = shapeNames() num_materials = len(colormap_files) num_shapes = len(shape_names) L_errors = np.zeros((num_shapes, num_materials)) Ms = [] for colormap_file in colormap_files: M_32F = loadColorMap(colormap_file) Ms.append(M_32F) for si, shape_name in enumerate(shape_names): Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data for mi, M_32F in enumerate(Ms): C0_32F = ColorMapShader(M_32F).diffuseShading(Lg, Ng_32F) I_32F = luminance(C0_32F) L = lightEstimation(I_32F, N0_32F, A_8U) L_errors[si, mi] = angleError(Lg, L) file_path = shapeResultFile("LightEstimation", "LightEstimationError", file_ext=".npy") np.save(file_path, L_errors)
def materialList(): shape_name = "ThreeBox" num_rows = 1 num_cols = len(colorMapFiles()) w = 24 h = w * num_rows / num_cols L = normalizeVector(np.array([-0.4, 0.5, 0.6])) fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.1, wspace=0.05) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data for colormap_file in colorMapFilesSortedReflectanceError(): M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "") file_path = shapeResultFile("ShapeEstimation", "MaterialList") fig.savefig(file_path, transparent=True)
def shapeList(): num_rows = 1 num_cols = len(shapeNames()) w = 20 h = w * num_rows / num_cols cmap_id = 10 colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) L = normalizeVector(np.array([-0.4, 0.5, 0.6])) fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) for shape_name in shapeNames(): Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "") file_path = shapeResultFile("ShapeEstimation", "ShapeList") fig.savefig(file_path, transparent=True)
def materialErrorTable(): shape_name = "ThreeBox" L = normalizeVector(np.array([-0.4, 0.5, 0.6])) num_materials = len(colorMapFiles()) C_errors = np.zeros((num_materials, 3)) N_errors = np.zeros((num_materials, 3)) I_errors = np.zeros((num_materials, 3)) Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) for mi, color_map_file in enumerate(colorMapFiles()): M_32F = loadColorMap(color_map_file) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) toon_sfs = ToonSFS(L, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=20) toon_sfs.setWeights(w_lap=9.0) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, L, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, L, N0_32F, A_8U) C_error_toon, N_error_toon, I_error_toon = computeErrors(L, C0_32F, C_toon, Ng_32F, N_toon, A_8U) C_error_lumo, N_error_lumo, I_error_lumo = computeErrors(L, C0_32F, C_lumo, Ng_32F, N_lumo, A_8U) C_error_wu, N_error_wu, I_error_wu = computeErrors(L, C0_32F, C_wu, Ng_32F, N_wu, A_8U) C_errors[mi, 0] = np.mean(C_error_toon) C_errors[mi, 1] = np.mean(C_error_lumo) C_errors[mi, 2] = np.mean(C_error_wu) I_errors[mi, 0] = np.mean(I_error_toon) I_errors[mi, 1] = np.mean(I_error_lumo) I_errors[mi, 2] = np.mean(I_error_wu) N_errors[mi, 0] = np.mean(N_error_toon) N_errors[mi, 1] = np.mean(N_error_lumo) N_errors[mi, 2] = np.mean(N_error_wu) file_path = shapeResultFile("ShapeEstimation", "MaterialShadingError", file_ext=".npy") np.save(file_path, C_errors) file_path = shapeResultFile("ShapeEstimation", "MaterialNormalError", file_ext=".npy") np.save(file_path, N_errors) file_path = shapeResultFile("ShapeEstimation", "MaterialIlluminationError", file_ext=".npy") np.save(file_path, I_errors)
def lightEstimation(I_32F, N_32F, A_8U=None): I = I_32F.flatten() N = N_32F.reshape(-1, 3) if A_8U is not None: I = I_32F[A_8U > 0.5 * np.max(A_8U)] N = N_32F[A_8U > 0.5 * np.max(A_8U), :] num_samples = 2000 sample_ids = np.random.randint(len(I) - 1, size=num_samples) I = I[sample_ids] N = N[sample_ids] I_avg = np.average(I) N_avg = np.average(N, axis=0) #I = I - 0.8 * I_avg #N = N - 0.8 * N_avg A = np.dot(N.T, N) b = np.dot(N.T, I) L = np.linalg.solve(A, b) L = normalizeVector(L) return L
def lightSphere(L, h=256, w=256): L = normalizeVector(L) N_32F, A_32F = normalSphere(h, w) I_32F = diffuse(N_32F, L) I_32F = I_32F * A_32F return I_32F
def LdotN(L, N_32F): L = normalizeVector(L) h, w = N_32F.shape[:2] N_flat = N_32F.reshape((-1, 3)) LdN_flat = np.dot(N_flat, L) LdN = LdN_flat.reshape(h, w) return LdN
def lightEstimationByVoting(W_32F, N_32F, A_8U=None): W = W_32F.flatten() N = N_32F.reshape(-1, 3) if A_8U is not None: W = W_32F[A_8U > 0.9 * np.max(A_8U)] N = N_32F[A_8U > 0.9 * np.max(A_8U), :] num_samples = 2000 sample_ids = np.random.randint(len(W) - 1, size=num_samples) W = W[sample_ids] N = N[sample_ids, :] N_min = np.min(N[:, 2]) N_max = np.max(N[:, 2]) xy_samples = N[:, 2] > N_min + 0.1 * (N_max - N_min) W = W[xy_samples] N = N[xy_samples, :] xy_samples = N[:, 2] < N_min + 0.3 * (N_max - N_min) W = W[xy_samples] N = N[xy_samples, :] print np.min(W), np.max(W) W /= np.max(W) W = W**1.0 L = np.dot(N.T, W) L = normalizeVector(L) return L
def lightEstimationByVoting(W_32F, N_32F, A_8U=None): W = W_32F.flatten() N = N_32F.reshape(-1, 3) if A_8U is not None: W = W_32F[A_8U > 0.9 * np.max(A_8U)] N = N_32F[A_8U > 0.9 * np.max(A_8U), :] num_samples = 2000 sample_ids = np.random.randint(len(W) - 1, size=num_samples) W = W[sample_ids] N = N[sample_ids, :] N_min = np.min(N[:, 2]) N_max = np.max(N[:, 2]) xy_samples = N[:, 2] > N_min + 0.1 * (N_max - N_min) W = W[xy_samples] N = N[xy_samples, :] xy_samples = N[:, 2] < N_min + 0.3 * (N_max - N_min) W = W[xy_samples] N = N[xy_samples, :] print np.min(W), np.max(W) W /= np.max(W) W = W ** 1.0 L = np.dot(N.T, W) L = normalizeVector(L) return L
def _runColorMap(self, colormap_file, Ng_32F, N0_32F, A_8U): M_32F = loadColorMap(colormap_file) L0 = normalizeVector(np.array([-0.2, 0.3, 0.6])) L0_img = lightSphere(L0) L0_txt = 0.01 * np.int32(100 * L0) C0_32F = ColorMapShader(M_32F).diffuseShading(L0, Ng_32F) I_32F = luminance(C0_32F) L = lightEstimation(I_32F, N0_32F, A_8U) L_txt = 0.01 * np.int32(100 * L) L_img = lightSphere(L) fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 1 num_cols = 4 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(setAlpha(C0_32F, A_8U), r'Input image: $\mathbf{c}$', font_size=font_size) plot_grid.showImage(normalToColor(N0_32F, A_8U), r'Initial normal: $\mathbf{N}_0$') plot_grid.showImage(L0_img, r'Ground trugh light: $L_g = (%s, %s, %s)$' %(L0_txt[0], L0_txt[1], L0_txt[2])) plot_grid.showImage(L_img, r'Estimated light: $L = (%s, %s, %s)$' %(L_txt[0], L_txt[1], L_txt[2])) showMaximize()
def _runLayer(self, layer_file): C0_8U = loadRGBA(layer_file) if C0_8U is None: return A_8U = alpha(C0_8U) if A_8U is None: return C0_32F = to32F(rgb(C0_8U)) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) sfs_method = Wu08SFS(L, C0_32F, A_8U) sfs_method.run() N_32F = sfs_method.normal() fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 1 num_cols = 2 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(C0_8U, r'Shading: $C$') plot_grid.showImage(normalToColor(N_32F, A_8U), r'Estimated Normal: $N$') showMaximize()
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data #N0_32F = cv2.resize(N0_32F, (64, 64)) #A_8U = cv2.resize(A_8U, N0_32F.shape[:2]) A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) # C0_32F = ToonShader().diffuseShading(L, N0_32F) C0_32F = LambertShader().diffuseShading(L, N0_32F) sfs_method = Wu08SFS(L, C0_32F, A_8U) sfs_method.run() N_32F = sfs_method.normal() saveNormal(self.resultFile(self._data_file_name, result_name="Wu08"), N_32F, A_8U) C_error = sfs_method.shadingError() I_32F = sfs_method.brightness() I_32F = gray2rgb(I_32F) C_32F = sfs_method.shading() N0_32F = trim(N0_32F, A_8U) C0_32F = trim(C0_32F, A_8U) C_32F = trim(C_32F, A_8U) N_32F = trim(N_32F, A_8U) C_error = trim(C_error, A_8U) I_32F = trim(I_32F, A_8U) A_32F = trim(A_32F, A_8U) A_8U = trim(A_8U, A_8U) h, w = N_32F.shape[:2] N_error = angleErros(N_32F.reshape(-1, 3), N0_32F.reshape(-1, 3)).reshape(h, w) N_error[A_8U < np.max(A_8U)] = 0.0 fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 2 num_cols = 3 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(normalToColor(N0_32F, A_8U), r'Ground Truth Normal: $N_g$') plot_grid.showImage(normalToColor(N_32F, A_8U), r'Estimated Normal: $N$') plot_grid.showColorMap(N_error, r'Angle Error: $N_g, N$', v_min=0, v_max=30.0) plot_grid.showImage(setAlpha(C0_32F, A_32F), r'Shading: $C$') plot_grid.showImage(setAlpha(C_32F, A_32F), r'Estimated Shading: $C$') plot_grid.showColorMap(C_error, r'Shading Error: $C_g, C$', v_min=0, v_max=0.1) showMaximize()
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data # N0_32F = cv2.resize(N0_32F, (64, 64)) # A_8U = cv2.resize(A_8U, N0_32F.shape[:2]) A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) # C0_32F = ToonShader().diffuseShading(L, N0_32F) C0_32F = LambertShader().diffuseShading(L, N0_32F) sfs_method = Wu08SFS(L, C0_32F, A_8U) sfs_method.run() N_32F = sfs_method.normal() saveNormal(self.resultFile(self._data_file_name, result_name="Wu08"), N_32F, A_8U) C_error = sfs_method.shadingError() I_32F = sfs_method.brightness() I_32F = gray2rgb(I_32F) C_32F = sfs_method.shading() N0_32F = trim(N0_32F, A_8U) C0_32F = trim(C0_32F, A_8U) C_32F = trim(C_32F, A_8U) N_32F = trim(N_32F, A_8U) C_error = trim(C_error, A_8U) I_32F = trim(I_32F, A_8U) A_32F = trim(A_32F, A_8U) A_8U = trim(A_8U, A_8U) h, w = N_32F.shape[:2] N_error = angleErros(N_32F.reshape(-1, 3), N0_32F.reshape(-1, 3)).reshape(h, w) N_error[A_8U < np.max(A_8U)] = 0.0 fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 2 num_cols = 3 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(normalToColor(N0_32F, A_8U), r"Ground Truth Normal: $N_g$") plot_grid.showImage(normalToColor(N_32F, A_8U), r"Estimated Normal: $N$") plot_grid.showColorMap(N_error, r"Angle Error: $N_g, N$", v_min=0, v_max=30.0) plot_grid.showImage(setAlpha(C0_32F, A_32F), r"Shading: $C$") plot_grid.showImage(setAlpha(C_32F, A_32F), r"Estimated Shading: $C$") plot_grid.showColorMap(C_error, r"Shading Error: $C_g, C$", v_min=0, v_max=0.1) showMaximize()
def stylizedShadingFigure(): target_shapes = ["Man", "Ogre", "Grog", "Vase"] target_shapes = [shapeFile(shape_name) for shape_name in target_shapes] target_colormaps = [1, 5, 10, 3] target_colormaps = [colorMapFile(cmap_id) for cmap_id in target_colormaps] fig, axes = plt.subplots(figsize=(12, 4)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.98, bottom=0.02, hspace=0.1, wspace=0.1) fig.suptitle("", fontsize=font_size) num_rows = 1 num_cols = 4 plot_grid = SubplotGrid(num_rows, num_cols) Ls = [] Ls.append(normalizeVector(np.array([-0.5, 0.3, 0.7]))) Ls.append(normalizeVector(np.array([0.2, -0.35, 0.4]))) Ls.append(normalizeVector(np.array([-0.2, 0.6, 0.3]))) Ls.append(normalizeVector(np.array([-0.2, 0.6, 0.3]))) for shape_file, colormap_file, L in zip(target_shapes, target_colormaps, Ls): N_32F, A_8U = loadNormal(shape_file) M_32F = loadColorMap(colormap_file) C_32F = ColorMapShader(M_32F).diffuseShading(L, N_32F) # C_32F = trim(C_32F, A_8U) # A_8U = trim(A_8U, A_8U) C_32F = setAlpha(C_32F, to32F(A_8U)) # h, w = C_32F.shape[:2] # # h_t = 512 # w_t = w * h_t / h # C_32F = cv2.resize(C_32F, (w_t, h_t)) plot_grid.showImage(C_32F, "", alpha_clip=True) file_path = os.path.join(shapeResultsDir(), "StylizedShading.png") fig.savefig(file_path, transparent=True)
def diffuse(N_32F, L): L = normalizeVector(L) h, w, cs = N_32F.shape N_flat = N_32F.reshape((-1, 3)) I_flat = np.dot(N_flat, L) I_32F = I_flat.reshape((h, w)) I_32F = np.clip(I_32F, 0.0, 1.0) return np.float32(I_32F)
def _lightAnimation(self): ts = np.linspace(0.0, 1.0, 120) L_start = np.array([-0.6, 0.3, 0.7]) L_end = np.array([0.6, 0.2, 0.7]) Ls = [] for t in ts: L = normalizeVector((1.0 - t) * L_start + t * L_end) Ls.append(L) return Ls
def lightSphereWithBG(L, h=256, w=256, bg_color=np.array([1.0, 0.0, 0.0])): L = normalizeVector(L) N_32F, A_32F = normalSphere(h, w) I_32F = diffuse(N_32F, L) C_32F = np.zeros(N_32F.shape) C_32F[:, :] = bg_color for ci in xrange(3): C_32F[:, :, ci] = I_32F * A_32F + (1.0 - A_32F) * C_32F[:, :, ci] return np.clip(C_32F, 0.0, 1.0)
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N_32F, A_8U = normal_data N_32F = trim(N_32F, A_8U) A_8U = trim(A_8U, A_8U) A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) I_half = half_lambert.diffuse(N_32F, L) I_half = setAlpha(gray2rgb(I_half), A_32F) I_lambert = lambert.diffuse(N_32F, L) I_lambert = setAlpha(gray2rgb(I_lambert), A_32F) fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.05, wspace=0.05) fig.suptitle("Depth From Normal", fontsize=font_size) plt.subplot(1, 4, 1) plt.title(r'Normal: $N$') plt.imshow(normalToColor(N_32F, A_8U)) plt.axis('off') plt.subplot(1, 4, 2) plt.title(r'Half Lambert: $I_h$') plt.imshow(I_half) plt.axis('off') plt.subplot(1, 4, 3) plt.title(r'Lambert: $I_l$') plt.imshow(I_lambert) plt.axis('off') showMaximize()
def computeLambertShadingError(): shape_names = shapeNames() L = normalizeVector(np.array([-0.2, 0.3, 0.6])) C_errors = np.zeros(len(shape_names)) N_errors = np.zeros(len(shape_names)) for si, shape_name in enumerate(shape_names): Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data C0_32F = LambertShader().diffuseShading(L, Ng_32F) sfs_method = ToonSFS(L, C0_32F, A_8U) sfs_method.setInitialNormal(N0_32F) sfs_method.setNumIterations(iterations=60) sfs_method.run() N_32F = sfs_method.normal() C_32F = sfs_method.shading() C_error = sfs_method.shadingError() C_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 C_errors[si] = np.average(C_error[A_8U > 0.5 * np.max(A_8U)]) h, w = A_8U.shape[:2] N_error = angleErros(N_32F.reshape(-1, 3), Ng_32F.reshape(-1, 3)).reshape(h, w) N_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 N_errors[si] = np.average(N_error[A_8U > 0.5 * np.max(A_8U)]) file_path = shapeResultFile("ShapeEstimation", "ShadingError", file_ext=".npy") np.save(file_path, C_errors) file_path = shapeResultFile("ShapeEstimation", "NormalError", file_ext=".npy") np.save(file_path, N_errors)
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) # C0_32F = ToonShader().diffuseShading(L, N0_32F) C0_32F = LambertShader().diffuseShading(L, N0_32F) self._C0_32F = C0_32F self._loadImage()
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) C0_32F = LambertShader().diffuseShading(L, N0_32F) self._normal_constraint.clear() if os.path.exists(self.constraintFile()): self._normal_constraint.load(self.constraintFile()) self._tool.setImage(setAlpha(C0_32F, A_32F))
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.4, 0.7])) C0_32F = LambertShader().diffuseShading(L, N0_32F) I_32F = luminance(C0_32F) br_field = BrightnessField(I_32F, sigma=5.0) I_smooth_32F = br_field.smoothBrightness() dI = br_field.brightnessDifference() gx, gy = br_field.gradients() N_32F = br_field.field() fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 2 num_cols = 4 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(I_32F, r'$I$') plot_grid.showColorMap(dI, r'$dI$') plot_grid.showColorMap(gx, r'$gx$') plot_grid.showColorMap(gy, r'$gy$') plot_grid.showImage(normalToColor(N_32F, A_8U), r'$N$') plot_grid.showImage(N_32F[:, :, 2], r'$N_z$') showMaximize()
def _runColorMap(self, colormap_file, Ng_32F, N0_32F, A_8U): M_32F = loadColorMap(colormap_file) L0 = normalizeVector(np.array([-0.2, 0.3, 0.6])) L0_img = lightSphere(L0) L0_txt = 0.01 * np.int32(100 * L0) C0_32F = ColorMapShader(M_32F).diffuseShading(L0, Ng_32F) I_32F = luminance(C0_32F) L = lightEstimation(I_32F, N0_32F, A_8U) L_txt = 0.01 * np.int32(100 * L) L_img = lightSphere(L) fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 1 num_cols = 4 plot_grid = SubplotGrid(num_rows, num_cols) plot_grid.showImage(setAlpha(C0_32F, A_8U), r'Input image: $\mathbf{c}$', font_size=font_size) plot_grid.showImage(normalToColor(N0_32F, A_8U), r'Initial normal: $\mathbf{N}_0$') plot_grid.showImage( L0_img, r'Ground trugh light: $L_g = (%s, %s, %s)$' % (L0_txt[0], L0_txt[1], L0_txt[2])) plot_grid.showImage( L_img, r'Estimated light: $L = (%s, %s, %s)$' % (L_txt[0], L_txt[1], L_txt[2])) showMaximize()
def _interpolateNormalImage(self, N0_32F, W_32F, A_8U): constraints = [] constraints.append(image_constraints.laplacianConstraints(w_c=0.1)) constraints.append(image_constraints.normalConstraints(W_32F, N0_32F, w_c=3.0)) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) I_32F = luminance(to32F(rgb(self._image))) I_min, I_max = np.min(I_32F), np.max(I_32F) I_32F = (I_32F - I_min) / (I_max - I_min) # constraints.append(image_constraints.brightnessConstraints(L, I_32F, w_c=0.5)) constraints.append(image_constraints.silhouetteConstraints(A_8U, w_c=0.8)) solver_iter = image_solver.solveIterator(constraints, [postNormalize(th=0.0)]) N_32F = np.array(N0_32F) N_32F = image_solver.solveMG(N_32F, solver_iter, iterations=10) N_32F = image_constraints.NxyToNz(N_32F) return N_32F
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data #N0_32F = cv2.resize(N0_32F, (64, 64)) #A_8U = cv2.resize(A_8U, N0_32F.shape[:2]) A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) C0_32F = ToonShader().diffuseShading(L, N0_32F) # C0_32F = LambertShader().diffuseShading(L, N0_32F) sfs_method = Wu08SFS(L, C0_32F, A_8U) sfs_method.run() N_32F = sfs_method.normal() saveNormal(self.resultFile(self._data_file_name, result_name="Wu08"), N_32F, A_8U)
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) L = normalizeVector(np.array([-0.2, 0.3, 0.7])) #C0_32F = ToonShader().diffuseShading(L, N0_32F) C0_32F = LambertShader().diffuseShading(L, N0_32F) I0_32F = luminance(C0_32F) I0_low_32F = cv2.resize(I0_32F, (256, 256)) A_low_8U = cv2.resize(A_8U, I0_low_32F.shape) D_32F = depthFromGradient(I0_low_32F, A_low_8U) D_32F = cv2.resize(D_32F, I0_32F.shape) N_32F = depthToNormal(D_32F) self._view.setRGBAD(setAlpha(C0_32F, A_32F), D_32F)
def diffuseTerm(self, L, N_32F): L = normalizeVector(L) LdN = LdotN(L, N_32F) I_32F = np.clip(LdN, 0.0, 1.0) return np.float32(I_32F)
def methodComparisonFigure(shape_name="ThreeBox", cmap_id=10): num_methods = 3 num_rows = 3 num_cols = 2 * num_methods + 1 w = 20 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) L = normalizeVector(np.array([-0.4, 0.5, 0.6])) Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) toon_sfs = ToonSFS(L, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=100) toon_sfs.setWeights(w_lap=0.1) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, L, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, L, N0_32F, A_8U) C_error_toon, N_error_toon, I_error_toon = computeErrors(L, C0_32F, C_toon, Ng_32F, N_toon, A_8U) C_error_lumo, N_error_lumo, I_error_lumo = computeErrors(L, C0_32F, C_lumo, Ng_32F, N_lumo, A_8U) C_error_wu, N_error_wu, I_error_wu = computeErrors(L, C0_32F, C_wu, Ng_32F, N_wu, A_8U) plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "Ground-truth") title = "" plot_grid.showImage(setAlpha(C_lumo, to32F(A_8U)), "Lumo") plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_wu, to32F(A_8U)), "Lambert assumption") plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_toon, to32F(A_8U)), "Our result") plot_grid.showColorMap(C_error_toon, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(normalToColor(Ng_32F, A_8U), title) plot_grid.showImage(normalToColor(N_lumo, A_8U), title) plot_grid.showColorMap(N_error_lumo, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(normalToColor(N_wu, A_8U), title) plot_grid.showColorMap(N_error_wu, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(normalToColor(N_toon, A_8U), title) plot_grid.showColorMap(N_error_toon, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(computeIllumination(L, Ng_32F, A_8U), title) plot_grid.showImage(computeIllumination(L, N_lumo, A_8U), title) plot_grid.showColorMap(I_error_lumo, title, v_min=0, v_max=0.2, with_colorbar=True) plot_grid.showImage(computeIllumination(L, N_wu, A_8U), title) plot_grid.showColorMap(I_error_wu, title, v_min=0, v_max=0.2, with_colorbar=True) plot_grid.showImage(computeIllumination(L, N_toon, A_8U), title) plot_grid.showColorMap(I_error_toon, title, v_min=0, v_max=0.2, with_colorbar=True) # showMaximize() file_path = shapeResultFile("ShapeEstimation", "Comparison_%s_%s" %(shape_name, cmap_id), file_ext=".png") fig.savefig(file_path, transparent=True)
def overviewFigure(): cmap_id = 10 colormap_file = colorMapFile(cmap_id) num_rows = 1 num_cols = 5 w = 10 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.02, hspace=0.05, wspace=0.05) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) L = normalizeVector(np.array([-0.4, 0.6, 0.6])) L_img = lightSphere(L) shape_name = "ThreeBox" Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data M_32F = loadColorMap(colormap_file) Cg_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) borders=[0.6, 0.8, 0.92] colors = [np.array([0.2, 0.2, 0.4]), np.array([0.3, 0.3, 0.6]), np.array([0.4, 0.4, 0.8]), np.array([0.5, 0.5, 1.0])] #Cg_32F = ToonShader(borders, colors).diffuseShading(L, Ng_32F) #Cg_32F = cv2.GaussianBlur(Cg_32F, (0,0), 2.0) sfs_method = ToonSFS(L, Cg_32F, A_8U) sfs_method.setInitialNormal(N0_32F) sfs_method.setNumIterations(iterations=40) sfs_method.setWeights(w_lap=10.0) sfs_method.run() N_32F = sfs_method.normal() I_32F = np.float32(np.clip(LdotN(L, N_32F), 0.0, 1.0)) I0_32F = np.float32(np.clip(LdotN(L, N0_32F), 0.0, 1.0)) C_32F = sfs_method.shading() C0_32F = sfs_method.initialShading() M_32F = sfs_method.colorMap().mapImage() L1 = normalizeVector(np.array([0.0, 0.6, 0.6])) L1_img = lightSphere(L1) C1_32F = sfs_method.relighting(L1) L2 = normalizeVector(np.array([0.5, 0.8, 0.6])) L2_img = lightSphere(L2) C2_32F = sfs_method.relighting(L2) N_sil = silhouetteNormal(A_8U, sigma=7.0) N_sil[:, :, 2] = N_sil[:, :, 2] ** 10.0 N_sil = normalizeImage(N_sil) A_sil = 1.0 - N_sil[:, :, 2] A_sil = to8U(A_sil) N_xy = N_sil[:, :, 0] ** 2 + N_sil[:, :, 1] ** 2 A_sil[N_xy < 0.1] = 0 title = "" plot_grid.showImage(setAlpha(Cg_32F, to32F(A_8U)), title) plot_grid.showImage(normalToColor(N0_32F, A_8U), title) plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), title) plot_grid.showImage(normalToColor(N_32F, A_8U), title) plot_grid.showImage(setAlpha(C_32F, to32F(A_8U)), title) # plot_grid.showImage(normalToColor(Ng_32F, A_8U), title) #showMaximize() file_path = shapeResultFile("Overview", "Overview") fig.savefig(file_path, transparent=True) file_path = shapeResultFile("Overview", "Cg") saveRGBA(file_path, setAlpha(Cg_32F, to32F(A_8U))) file_path = shapeResultFile("Overview", "L") saveRGB(file_path, gray2rgb(to8U(L_img))) file_path = shapeResultFile("Overview", "L1") saveRGB(file_path, gray2rgb(to8U(L1_img))) file_path = shapeResultFile("Overview", "L2") saveRGB(file_path, gray2rgb(to8U(L2_img))) file_path = shapeResultFile("Overview", "N0") saveNormal(file_path, N0_32F, A_8U) file_path = shapeResultFile("Overview", "N_sil") saveNormal(file_path, N_sil, A_sil) file_path = shapeResultFile("Overview", "N") saveNormal(file_path, N_32F, A_8U) file_path = shapeResultFile("Overview", "C0") saveRGBA(file_path, setAlpha(C0_32F, to32F(A_8U))) file_path = shapeResultFile("Overview", "C") saveRGBA(file_path, setAlpha(C_32F, to32F(A_8U))) file_path = shapeResultFile("Overview", "C1") saveRGBA(file_path, setAlpha(C1_32F, to32F(A_8U))) file_path = shapeResultFile("Overview", "C2") saveRGBA(file_path, setAlpha(C2_32F, to32F(A_8U))) file_path = shapeResultFile("Overview", "I") saveRGBA(file_path, setAlpha(gray2rgb(I_32F), to32F(A_8U))) file_path = shapeResultFile("Overview", "I0") saveRGBA(file_path, setAlpha(gray2rgb(I0_32F), to32F(A_8U))) file_path = shapeResultFile("Overview", "M") saveRGB(file_path, M_32F)
def reflectanceEstimationFigure(): errorTable() M_errors = loadReflectanceErrorTable() M_error_orders = np.argsort(M_errors) print M_errors[M_error_orders] colormap_files = colorMapFiles() colormap_files = [colormap_files[M_error_order] for M_error_order in M_error_orders] colormap_files = colormap_files[0:-1:3] Ms = [] MLs = [] for colormap_file in colormap_files: M_32F = loadColorMap(colormap_file) Ms.append(M_32F) C_32F = M_32F.reshape(1, len(M_32F), 3) I_32F = np.linspace(0.0, 1.0, len(M_32F)) I_32F = I_32F.reshape(C_32F.shape[:2]) reflectance = LambertReflectanceEstimation(C_32F, I_32F) Ml = reflectance.shading(I_32F) MLs.append(Ml[0, :, :]) num_rows = 3 num_cols = len(colormap_files) w = 10 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.98, bottom=0.02, hspace=0.05, wspace=0.05) fig.suptitle("", fontsize=font_size) N_sphere, A_32F = normalSphere(h=512, w=512) Lg = normalizeVector(np.array([-0.2, 0.3, 0.6])) plot_grid = SubplotGrid(num_rows, num_cols) mi = 1 for M, Ml in zip(Ms, MLs): CM_32F = ColorMapShader(M).diffuseShading(Lg, N_sphere) CL_32F = ColorMapShader(Ml).diffuseShading(Lg, N_sphere) C_error = normVectors((CM_32F - CL_32F).reshape(-1, 3)).reshape(CL_32F.shape[:2]) C_error[A_32F < 0.5 * np.max(A_32F)] = 0.0 plot_grid.setPlot(1, mi) plot_grid.showImage(setAlpha(CM_32F, A_32F), "") plot_grid.setPlot(2, mi) plot_grid.showImage(setAlpha(CL_32F, A_32F), "") plot_grid.setPlot(3, mi) plot_grid.showColorMap(C_error, "", v_min=0.0, v_max=0.3, with_colorbar=False) mi += 1 file_path = shapeResultFile("ReflectanceEstimation", "ReflectanceEstimationError") fig.savefig(file_path, transparent=True)
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) N0_32F = trim(N0_32F, A_8U) A_32F = trim(A_32F, A_8U) A_8U = trim(A_8U, A_8U) L = normalizeVector(np.array([0.5, -0.2, 0.7])) C0_32F = ToonShader().diffuseShading(L, N0_32F) I0_32F = luminance(C0_32F) I_min, I_max = np.min(I0_32F), np.max(I0_32F) I_scale = (I0_32F - I_min) / (I_max - I_min) I_L = cv2.Laplacian(cv2.GaussianBlur(I_scale, (0, 0), 31.0), cv2.CV_32F, ksize=1) I_L_avg = np.average(np.abs(I_L)) Ix = cv2.Sobel(I0_32F, cv2.CV_64F, 1, 0, ksize=1) Ix = cv2.GaussianBlur(Ix, (0, 0), 3.0) Ixx = cv2.Sobel(Ix, cv2.CV_64F, 1, 0, ksize=1) Ixx = cv2.GaussianBlur(Ixx, (0, 0), 5.0) Iy = -cv2.Sobel(I0_32F, cv2.CV_64F, 0, 1, ksize=1) Iy = cv2.GaussianBlur(Iy, (0, 0), 3.0) Iyy = -cv2.Sobel(Iy, cv2.CV_64F, 0, 1, ksize=1) Iyy = cv2.GaussianBlur(Iyy, (0, 0), 5.0) fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 2 num_cols = 5 plot_grid = SubplotGrid(num_rows, num_cols) Nx = cv2.Sobel(N0_32F[:, :, 0], cv2.CV_64F, 1, 0, ksize=1) Nx = cv2.GaussianBlur(Nx, (0, 0), 3.0) Nxx = cv2.Sobel(Nx, cv2.CV_64F, 1, 0, ksize=1) Nxx = cv2.GaussianBlur(Nxx, (0, 0), 5.0) Ny = -cv2.Sobel(N0_32F[:, :, 1], cv2.CV_64F, 0, 1, ksize=1) Ny = cv2.GaussianBlur(Ny, (0, 0), 3.0) Nyy = -cv2.Sobel(Ny, cv2.CV_64F, 0, 1, ksize=1) Nyy = cv2.GaussianBlur(Nyy, (0, 0), 5.0) Nz_L = cv2.Laplacian(cv2.GaussianBlur(N0_32F[:, :, 2], (0, 0), 5.0), cv2.CV_32F, ksize=5) Nz_L_avg = np.average(np.abs(Nz_L)) Nz_L *= 1.0 / Nz_L_avg I_L *= 1.0 / I_L_avg print I_L_avg, Nz_L_avg Nz_L = np.clip(Nz_L, -5.0, 5.0) I_L = np.clip(I_L, -5.0, 5.0) plot_grid.showColorMap(N0_32F[:, :, 0], r'$N_{x}$', v_min=-0.01, v_max=0.01) plot_grid.showColorMap(N0_32F[:, :, 1], r'$N_{y}$', v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Nx, r'$N_{xx}$', v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Ny, r'$N_{yy}$', v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Nz_L, r'$Nz_L$') #plot_grid.showColorMap(Nx + Ny, r'$N_{xx} + N_{yy}$', v_min=-0.01, v_max=0.01) # Ixx[Ixx>0] = 1.0 # Ixx[Ixx<0] = -1.0 # Iyy[Iyy>0] = 1.0 # Iyy[Iyy<0] = -1.0 plot_grid.showColorMap(-Ix, r'$I_{x}$', v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Iy, r'$I_{y}$', v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Ixx, r'$I_{xx}$', v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Iyy, r'$I_{yy}$', v_min=-0.001, v_max=0.001) plot_grid.showColorMap(I_L, r'$I_L$') #plot_grid.showColorMap(-Ixx - Iyy, r'$I_{xx} + I_{yy}$', v_min=-0.01, v_max=0.01) #plot_grid.showColorMap(Iy, r'$I_{y}$') showMaximize()
def methodComparisonFigure(shape_name="ThreeBox", cmap_id=10): num_methods = 3 num_rows = 3 num_cols = 2 * num_methods + 1 w = 20 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) L = normalizeVector(np.array([-0.4, 0.5, 0.6])) Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) toon_sfs = ToonSFS(L, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=100) toon_sfs.setWeights(w_lap=0.1) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, L, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, L, N0_32F, A_8U) C_error_toon, N_error_toon, I_error_toon = computeErrors( L, C0_32F, C_toon, Ng_32F, N_toon, A_8U) C_error_lumo, N_error_lumo, I_error_lumo = computeErrors( L, C0_32F, C_lumo, Ng_32F, N_lumo, A_8U) C_error_wu, N_error_wu, I_error_wu = computeErrors(L, C0_32F, C_wu, Ng_32F, N_wu, A_8U) plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "Ground-truth") title = "" plot_grid.showImage(setAlpha(C_lumo, to32F(A_8U)), "Lumo") plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_wu, to32F(A_8U)), "Lambert assumption") plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_toon, to32F(A_8U)), "Our result") plot_grid.showColorMap(C_error_toon, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(normalToColor(Ng_32F, A_8U), title) plot_grid.showImage(normalToColor(N_lumo, A_8U), title) plot_grid.showColorMap(N_error_lumo, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(normalToColor(N_wu, A_8U), title) plot_grid.showColorMap(N_error_wu, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(normalToColor(N_toon, A_8U), title) plot_grid.showColorMap(N_error_toon, title, v_min=0, v_max=50.0, with_colorbar=True) plot_grid.showImage(computeIllumination(L, Ng_32F, A_8U), title) plot_grid.showImage(computeIllumination(L, N_lumo, A_8U), title) plot_grid.showColorMap(I_error_lumo, title, v_min=0, v_max=0.2, with_colorbar=True) plot_grid.showImage(computeIllumination(L, N_wu, A_8U), title) plot_grid.showColorMap(I_error_wu, title, v_min=0, v_max=0.2, with_colorbar=True) plot_grid.showImage(computeIllumination(L, N_toon, A_8U), title) plot_grid.showColorMap(I_error_toon, title, v_min=0, v_max=0.2, with_colorbar=True) # showMaximize() file_path = shapeResultFile("ShapeEstimation", "Comparison_%s_%s" % (shape_name, cmap_id), file_ext=".png") fig.savefig(file_path, transparent=True)
def shapeErrorTable(): cmap_id = 10 colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) L = normalizeVector(np.array([-0.4, 0.5, 0.6])) num_shapes = len(shapeNames()) C_errors = np.zeros((num_shapes, 3)) N_errors = np.zeros((num_shapes, 3)) I_errors = np.zeros((num_shapes, 3)) for si, shape_name in enumerate(shapeNames()): Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) toon_sfs = ToonSFS(L, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=20) toon_sfs.setWeights(w_lap=9.0) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, L, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, L, N0_32F, A_8U) C_error_toon, N_error_toon, I_error_toon = computeErrors( L, C0_32F, C_toon, Ng_32F, N_toon, A_8U) C_error_lumo, N_error_lumo, I_error_lumo = computeErrors( L, C0_32F, C_lumo, Ng_32F, N_lumo, A_8U) C_error_wu, N_error_wu, I_error_wu = computeErrors( L, C0_32F, C_wu, Ng_32F, N_wu, A_8U) C_errors[si, 0] = np.mean(C_error_toon) C_errors[si, 1] = np.mean(C_error_lumo) C_errors[si, 2] = np.mean(C_error_wu) I_errors[si, 0] = np.mean(I_error_toon) I_errors[si, 1] = np.mean(I_error_lumo) I_errors[si, 2] = np.mean(I_error_wu) N_errors[si, 0] = np.mean(N_error_toon) N_errors[si, 1] = np.mean(N_error_lumo) N_errors[si, 2] = np.mean(N_error_wu) file_path = shapeResultFile("ShapeEstimation", "ShapeShadingError", file_ext=".npy") np.save(file_path, C_errors) file_path = shapeResultFile("ShapeEstimation", "ShapeNormalError", file_ext=".npy") np.save(file_path, N_errors) file_path = shapeResultFile("ShapeEstimation", "ShapeIlluminationErrorShape", file_ext=".npy") np.save(file_path, I_errors) showShapeErrorTable()
def relightingFigure(shape_name="Vase", cmap_id=3): num_methods = 3 num_lights = 2 num_rows = num_lights + 1 num_cols = num_methods + 2 w = 15 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) Lg = normalizeVector(np.array([-0.2, 0.3, 0.5])) Lg_img = lightSphere(Lg) L1 = normalizeVector(np.array([0.0, 0.7, 0.6])) L2 = normalizeVector(np.array([0.3, 0.5, 0.6])) # Ls = [normalizeVector(Lg * (1.0 - t) + t * L1) for t in np.linspace(0.0, 1.0, num_lights) ] Ls = [L1, L2] Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(Lg, Ng_32F) toon_sfs = ToonSFS(Lg, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=50) toon_sfs.setWeights(w_lap=0.2) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, Lg, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, Lg, N0_32F, A_8U) M_lumo = estimatedReflectance(C0_32F, Lg, N_lumo, A_8U) M_wu = estimatedReflectance(C0_32F, Lg, N_wu, A_8U) plot_grid.showImage(Lg_img, "Light direction") plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "Ground-truth") title = "" plot_grid.showImage(setAlpha(C_lumo, to32F(A_8U)), "Lumo") #plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_wu, to32F(A_8U)), "Lambert assumption") #plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_toon, to32F(A_8U)), "Our result") #plot_grid.showColorMap(C_error_toon, title, v_min=0, v_max=0.1, with_colorbar=True) for L in Ls: C1 = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) C1_lumo = M_lumo.shading(LdotN(L, N_lumo).flatten()).reshape(C0_32F.shape) C1_wu = M_wu.shading(LdotN(L, N_wu).flatten()).reshape(C0_32F.shape) C1_toon = toon_sfs.relighting(L) plot_grid.showImage(lightSphere(L), "") plot_grid.showImage(setAlpha(C1, to32F(A_8U)), "") title = "" plot_grid.showImage(setAlpha(C1_lumo, to32F(A_8U)), "") #plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C1_wu, to32F(A_8U)), "") #plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C1_toon, to32F(A_8U)), "") # showMaximize() file_path = shapeResultFile("Relighting", "RelightingComparison", file_ext=".png") fig.savefig(file_path, transparent=True)
def relightingVideo(shape_name="Ogre", cmap_id=3): num_methods = 3 num_rows = 1 num_cols = num_methods + 2 num_lights = 120 w = 10 h = 5 fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.04, hspace=0.15, wspace=0.1) fig.suptitle("Shading Analysis", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) Lg = normalizeVector(np.array([-0.2, 0.3, 0.5])) Lg_img = lightSphere(Lg) L1 = normalizeVector(np.array([0.5, 0.5, 0.6])) Ls = [normalizeVector(Lg * (1.0 - t) + t * L1) for t in np.linspace(0.0, 1.0, num_lights) ] # Ls = [normalizeVector(Lg + 1.0 * np.cos(t) * np.array([1, 0, 0]) + 1.0 * np.sin(t) * np.array([0, 1, 0])) for t in np.linspace(0.0, 1.0, num_lights) ] Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data A_8U = cv2.bilateralFilter(A_8U, 0, 5, 2) colormap_file = colorMapFile(cmap_id) M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(Lg, Ng_32F) toon_sfs = ToonSFS(Lg, C0_32F, A_8U) toon_sfs.setInitialNormal(N0_32F) toon_sfs.setNumIterations(iterations=100) toon_sfs.setWeights(w_lap=0.2) toon_sfs.run() N_toon = toon_sfs.normal() C_toon = toon_sfs.shading() C_lumo, N_lumo = lumoSFS(C0_32F, Lg, N0_32F, A_8U) C_wu, N_wu = wuSFS(C0_32F, Lg, N0_32F, A_8U) M_lumo = estimatedReflectance(C0_32F, Lg, N_lumo, A_8U) M_wu = estimatedReflectance(C0_32F, Lg, N_wu, A_8U) plot_grid.showImage(Lg_img, "Light direction") plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), "Ground-truth") title = "" plot_grid.showImage(setAlpha(C_lumo, to32F(A_8U)), "Lumo") #plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_wu, to32F(A_8U)), "Lambert assumption") #plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C_toon, to32F(A_8U)), "Our result") #plot_grid.showColorMap(C_error_toon, title, v_min=0, v_max=0.1, with_colorbar=True) images = [] for i in xrange(48): images.append(figure2numpy(fig)) for li, L in enumerate(Ls): print li fig.clear() fig.suptitle("Relighting", fontsize=font_size) plot_grid.setPlot(1, 1) C1 = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) C1_lumo = M_lumo.shading(LdotN(L, N_lumo).flatten()).reshape(C0_32F.shape) C1_wu = M_wu.shading(LdotN(L, N_wu).flatten()).reshape(C0_32F.shape) C1_toon = toon_sfs.relighting(L) plot_grid.showImage(lightSphere(L), "Light direction") plot_grid.showImage(setAlpha(C1, to32F(A_8U)), "Ground-truth") title = "" plot_grid.showImage(setAlpha(C1_lumo, to32F(A_8U)), "Lumo") #plot_grid.showColorMap(C_error_lumo, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C1_wu, to32F(A_8U)), "Lambert assumption") #plot_grid.showColorMap(C_error_wu, title, v_min=0, v_max=0.1, with_colorbar=True) plot_grid.showImage(setAlpha(C1_toon, to32F(A_8U)), "Our result") images.append(figure2numpy(fig)) file_path = shapeResultFile("Relighting", "Relighting_%s_%s" %(shape_name, cmap_id), file_ext=".wmv") saveVideo(file_path, images)
def materialShapeVariationFigure(): target_colormaps = [23, 3, 12] #target_colormaps = [3, 17] colormap_files = [colorMapFile(cmap_id) for cmap_id in target_colormaps] target_shapes = ["Blob1", "ThreeBox"] shape_names = target_shapes #shape_names = shapeNames()[4:5] num_shapes = len(shape_names) num_colormaps = len(colormap_files) num_rows = num_colormaps num_cols = 6 w = 20 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.02, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) L = normalizeVector(np.array([-0.4, 0.5, 0.6])) shape_name = "Blob1" Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data for mi, colormap_file in enumerate(colormap_files): M_32F = loadColorMap(colormap_file) C0_32F = ColorMapShader(M_32F).diffuseShading(L, Ng_32F) sfs_method = ToonSFS(L, C0_32F, A_8U) sfs_method.setInitialNormal(N0_32F) sfs_method.setNumIterations(iterations=40) sfs_method.setWeights(w_lap=5.0) sfs_method.run() N_32F = sfs_method.normal() C_32F = sfs_method.shading() #C_32F = cv2.bilateralFilter(C_32F, 0, 0.1, 3) C_error = sfs_method.shadingError() C_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 C_error = trim(C_error, A_8U) h, w = A_8U.shape N_error = angleErros(N_32F.reshape(-1, 3), Ng_32F.reshape(-1, 3)).reshape(h, w) N_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 N_error = trim(N_error, A_8U) title = "" if mi == 0: title = "Ground-truth" plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), title) title = "" if mi == 0: title = "Our result" plot_grid.showImage(setAlpha(C_32F, to32F(A_8U)), title) title = "" if mi == 0: title = "Error (shading)" plot_grid.showColorMap(C_error, title, v_min=0, v_max=0.1, with_colorbar=True) title = "" if mi == 0: title = "Ground-truth" plot_grid.showImage(normalToColor(Ng_32F, A_8U), title) title = "" if mi == 0: title = "Our result" plot_grid.showImage(normalToColor(N_32F, A_8U), title) title = "" if mi == 0: title = "Error (shape)" plot_grid.showColorMap(N_error, title, v_min=0, v_max=50.0, with_colorbar=True) #showMaximize() file_path = shapeResultFile("ShapeEstimation", "MaterialShapeEvaluation", file_ext=".pdf") fig.savefig(file_path, transparent=False)
def LambertShadingFigure(): target_shapes = [ "Sphere", "Cone", "Blob1", "Man", "Cone", "OctaFlower", "Pulley", "Grog", "Lucy", "Raptor" ] target_shapes = ["Blob1", "Pulley", "Lucy"] shape_names = target_shapes num_rows = len(shape_names) num_cols = 6 w = 20 h = w * num_rows / num_cols fig, axes = plt.subplots(figsize=(w, h)) font_size = 15 fig.subplots_adjust(left=0.02, right=0.98, top=0.96, bottom=0.02, hspace=0.15, wspace=0.1) fig.suptitle("", fontsize=font_size) plot_grid = SubplotGrid(num_rows, num_cols) L = normalizeVector(np.array([-0.2, 0.3, 0.6])) for si, shape_name in enumerate(shape_names): Ng_data = shapeFile(shape_name) Ng_data = loadNormal(Ng_data) Ng_32F, A_8U = Ng_data N0_file = shapeResultFile(result_name="InitialNormal", data_name=shape_name) N0_data = loadNormal(N0_file) N0_32F, A_8U = N0_data C0_32F = LambertShader().diffuseShading(L, Ng_32F) sfs_method = ToonSFS(L, C0_32F, A_8U) sfs_method.setInitialNormal(N0_32F) sfs_method.setNumIterations(iterations=70) sfs_method.setWeights(w_lap=1.0) sfs_method.run() N_32F = sfs_method.normal() C_32F = sfs_method.shading() C_error = sfs_method.shadingError() C_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 C_error = trim(C_error, A_8U) h, w = A_8U.shape N_error = angleErros(N_32F.reshape(-1, 3), Ng_32F.reshape(-1, 3)).reshape(h, w) N_error[A_8U < 0.5 * np.max(A_8U)] = 0.0 N_error = trim(N_error, A_8U) title = "" if si == 0: title = "Ground-truth" plot_grid.showImage(setAlpha(C0_32F, to32F(A_8U)), title) title = "" if si == 0: title = "Our result" plot_grid.showImage(setAlpha(C_32F, to32F(A_8U)), title) title = "" if si == 0: title = "Error (shading)" plot_grid.showColorMap(C_error, title, v_min=0, v_max=0.1, with_colorbar=True) title = "" if si == 0: title = "Ground-truth" plot_grid.showImage(normalToColor(Ng_32F, A_8U), title) title = "" if si == 0: title = "Our result" plot_grid.showImage(normalToColor(N_32F, A_8U), title) title = "" if si == 0: title = "Error (shape)" plot_grid.showColorMap(N_error, title, v_min=0, v_max=30.0, with_colorbar=True) file_path = shapeResultFile("ShapeEstimation", "LambertEstimationError", file_ext=".pdf") fig.savefig(file_path, transparent=True)
def _runImp(self): normal_data = loadNormal(self._data_file) if normal_data is None: return N0_32F, A_8U = normal_data A_32F = to32F(A_8U) N0_32F = trim(N0_32F, A_8U) A_32F = trim(A_32F, A_8U) A_8U = trim(A_8U, A_8U) L = normalizeVector(np.array([0.5, -0.2, 0.7])) C0_32F = ToonShader().diffuseShading(L, N0_32F) I0_32F = luminance(C0_32F) I_min, I_max = np.min(I0_32F), np.max(I0_32F) I_scale = (I0_32F - I_min) / (I_max - I_min) I_L = cv2.Laplacian(cv2.GaussianBlur(I_scale, (0, 0), 31.0), cv2.CV_32F, ksize=1) I_L_avg = np.average(np.abs(I_L)) Ix = cv2.Sobel(I0_32F, cv2.CV_64F, 1, 0, ksize=1) Ix = cv2.GaussianBlur(Ix, (0, 0), 3.0) Ixx = cv2.Sobel(Ix, cv2.CV_64F, 1, 0, ksize=1) Ixx = cv2.GaussianBlur(Ixx, (0, 0), 5.0) Iy = -cv2.Sobel(I0_32F, cv2.CV_64F, 0, 1, ksize=1) Iy = cv2.GaussianBlur(Iy, (0, 0), 3.0) Iyy = -cv2.Sobel(Iy, cv2.CV_64F, 0, 1, ksize=1) Iyy = cv2.GaussianBlur(Iyy, (0, 0), 5.0) fig, axes = plt.subplots(figsize=(11, 5)) font_size = 15 fig.subplots_adjust(left=0.05, right=0.95, top=0.9, hspace=0.12, wspace=0.05) fig.suptitle(self.name(), fontsize=font_size) num_rows = 2 num_cols = 5 plot_grid = SubplotGrid(num_rows, num_cols) Nx = cv2.Sobel(N0_32F[:, :, 0], cv2.CV_64F, 1, 0, ksize=1) Nx = cv2.GaussianBlur(Nx, (0, 0), 3.0) Nxx = cv2.Sobel(Nx, cv2.CV_64F, 1, 0, ksize=1) Nxx = cv2.GaussianBlur(Nxx, (0, 0), 5.0) Ny = -cv2.Sobel(N0_32F[:, :, 1], cv2.CV_64F, 0, 1, ksize=1) Ny = cv2.GaussianBlur(Ny, (0, 0), 3.0) Nyy = -cv2.Sobel(Ny, cv2.CV_64F, 0, 1, ksize=1) Nyy = cv2.GaussianBlur(Nyy, (0, 0), 5.0) Nz_L = cv2.Laplacian(cv2.GaussianBlur(N0_32F[:, :, 2], (0, 0), 5.0), cv2.CV_32F, ksize=5) Nz_L_avg = np.average(np.abs(Nz_L)) Nz_L *= 1.0 / Nz_L_avg I_L *= 1.0 / I_L_avg print I_L_avg, Nz_L_avg Nz_L = np.clip(Nz_L, -5.0, 5.0) I_L = np.clip(I_L, -5.0, 5.0) plot_grid.showColorMap(N0_32F[:, :, 0], r"$N_{x}$", v_min=-0.01, v_max=0.01) plot_grid.showColorMap(N0_32F[:, :, 1], r"$N_{y}$", v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Nx, r"$N_{xx}$", v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Ny, r"$N_{yy}$", v_min=-0.01, v_max=0.01) plot_grid.showColorMap(Nz_L, r"$Nz_L$") # plot_grid.showColorMap(Nx + Ny, r'$N_{xx} + N_{yy}$', v_min=-0.01, v_max=0.01) # Ixx[Ixx>0] = 1.0 # Ixx[Ixx<0] = -1.0 # Iyy[Iyy>0] = 1.0 # Iyy[Iyy<0] = -1.0 plot_grid.showColorMap(-Ix, r"$I_{x}$", v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Iy, r"$I_{y}$", v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Ixx, r"$I_{xx}$", v_min=-0.001, v_max=0.001) plot_grid.showColorMap(-Iyy, r"$I_{yy}$", v_min=-0.001, v_max=0.001) plot_grid.showColorMap(I_L, r"$I_L$") # plot_grid.showColorMap(-Ixx - Iyy, r'$I_{xx} + I_{yy}$', v_min=-0.01, v_max=0.01) # plot_grid.showColorMap(Iy, r'$I_{y}$') showMaximize()