def getContasrtMeasure(self, rgb):
lum = colour.RGB_to_HSL(rgb)[:, 2]
#正規化
lum = (lum - np.min(lum)) / (np.max(lum) - np.min(lum))
return np.var(lum)
def convert_color_space_from_rgb(
np_image: np.ndarray, dest_color_space: Optional[str]) -> np.ndarray:
if dest_color_space is None or dest_color_space == "RGB":
return np_image
elif dest_color_space == "HSV":
return colour.RGB_to_HSV(np_image)
elif dest_color_space == "HSL":
return colour.RGB_to_HSL(np_image)
elif dest_color_space == "CMY":
return colour.RGB_to_CMY(np_image)
else:
raise ValueError("Undefined color space.")
def getBrightnessMeasure(self, rgb):
Y = colour.RGB_to_YCbCr(rgb)[:, 0]
lum = colour.RGB_to_HSL(rgb)[:, 2]
return np.c_[np.mean(Y),
np.var(Y),
np.min(Y),
np.max(Y),
np.mean(lum),
np.var(lum),
np.min(lum),
np.max(lum)]
print(colour.RGB_to_HSV(RGB))
print('\n')
HSV = np.array([0.27867384, 0.74400000, 0.98039216])
message_box(('Converting to "RGB" colourspace from given "HSV" colourspace '
'values:\n'
'\n\t{0}'.format(HSV)))
print(colour.HSV_to_RGB(HSV))
print('\n')
message_box(('Converting to "HSL" colourspace from given "RGB" colourspace '
'values:\n'
'\n\t{0}'.format(RGB)))
print(colour.RGB_to_HSL(RGB))
print('\n')
HSL = np.array([0.27867384, 0.94897959, 0.61568627])
message_box(('Converting to "RGB" colourspace from given "HSL" colourspace '
'values:\n'
'\n\t{0}'.format(HSL)))
print(colour.HSL_to_RGB(HSL))
print('\n')
message_box(('Converting to "CMY" colourspace from given "RGB" colourspace '
'values:\n'
'\n\t{0}'.format(RGB)))
print(colour.RGB_to_CMY(RGB))
def getSaturationMeasure(self, rgb):
sat = colour.RGB_to_HSL(rgb)[:, 1]
return np.c_[np.mean(sat), np.var(sat), np.min(sat), np.max(sat)]
def getSatDistance(self, rgb1, rgb2):
sat1 = colour.RGB_to_HSL(rgb1)[:, 1]
sat2 = colour.RGB_to_HSL(rgb2)[:, 1]
return mean_squared_error(sat1, sat2)
#正規化と整形
inputImg = cv2.cvtColor(inputImg, cv2.COLOR_BGR2RGB) / 255.
rgb = np.reshape(inputImg, (inputImg.shape[0] * inputImg.shape[1], 3))
#初期画像の保存
if (it == 0):
initialRGB = rgb
#色空間の変換
if COLOR_SPACE is "RGB":
pixel = rgb
elif COLOR_SPACE is "HSV":
pixel = colour.RGB_to_HSV(rgb)
elif COLOR_SPACE is "HSL":
pixel = colour.RGB_to_HSL(rgb)
aveGrads[it] = getAveGrad(pixel)
entropys[it] = getEntropy(pixel)
moment, cov = getColorMoment(pixel)
moments[it] = moment
colorDist[it] = getDistance(initialRGB, rgb)
measures[it] = getImageMeasure(initialRGB, rgb)
SatMeasures[it] = getSaturationMeasure(rgb)
colorfulness[it] = getColourFulness(rgb)
naturalness[it] = getNaturalness(rgb)
contrast[it] = getContasrtMeasure(rgb)
brightness[it] = getBrightnessMeasure(rgb)
satDist[it] = getSatDistance(rgb, initialRGB)
CFM[it] = ColorFidelityMetric(initialRGB, rgb)
def rgb_to_l(r, g, b):
RGB = np.array([r, g, b])
HSL = colour.RGB_to_HSL(RGB)
return HSL