def cannyEdge(I):
# convert RGB image to gray color space
im_gray = utils.rgb2gray(I)
Mag, Magx, Magy, Ori = findDerivatives(im_gray)
M = nonMaxSup(Mag, Ori)
E = edgeLink(M, Mag, Ori)
# only when test passed that can show all results
if Test_script(im_gray, E):
# visualization results
utils.visDerivatives(im_gray, Mag, Magx, Magy)
utils.visCannyEdge(I, M, E)
plt.show()
return E
def cannyEdge(I):
# convert RGB image to gray color space
im_gray = utils.rgb2gray(I)
#im_gray = np.kron([[1, 0] * 4, [1, 0] * 4] * 4, np.ones((10, 10)))*255
Mag, Magx, Magy, Ori = findDerivatives(im_gray)
M = nonMaxSup(Mag, Ori)
#Image.fromarray(M.astype("uint8")*255).show()
E = edgeLink(M, Mag, Ori)
# only when test passed that can show all results
if Test_script(im_gray, E):
# visualization results
utils.visDerivatives(im_gray, Mag, Magx, Magy)
utils.visCannyEdge(I, M, E)
plt.show()
return E
def cannyEdge(I, sigma, low_c, high_c, filename):
# convert RGB image to gray color space
im_gray = utils.rgb2gray(I)
Mag, Magx, Magy, Ori = findDerivatives(im_gray, sigma)
M = nonMaxSup(Mag, Ori)
E = edgeLink(M, Mag, Ori, low_c, high_c)
# only when test passed that can show all results
if Test_script(im_gray, E):
# visualization results
utils.visDerivatives(im_gray, Mag, Magx, Magy)
utils.visCannyEdge(I, M, E)
#name = "%s_%d_%d_%d_.jpeg" % (filename, sigma*10, low_c*10, high_c*10)
#plt.savefig(name, bbox_inches='tight', format='jpeg')
#plt.close()
plt.show()
return E
def cannyEdge(I, fname=None):
# convert RGB image to gray color space
T0 = time.time()
im_gray = utils.rgb2gray(I)
Mag, Magx, Magy, Ori = findDerivatives(im_gray)
print(filename, "(findDerivatives) elapsed time:", time.time() - T0)
# print(Mag.shape,Magx.shape,Magy.shape,Ori.shape)
M = nonMaxSup(Mag, Ori)
print(fname, "(nonMaxSup) elapsed time:", time.time() - T0)
E = edgeLink(M, Mag, Ori)
print(fname, "(edgeLink) elapsed time:", time.time() - T0)
Test_script(im_gray, E)
# only when test passed that can show all results
# if Test_script(im_gray, E):
# # visualization results
# utils.visDerivatives(im_gray, Mag, Magx, Magy, fname)
# utils.visCannyEdge(I, M, E, fname )
# plt.show()
print(filename, "(Test_script) elapsed time:", time.time() - T0)
return E