How to manipulate the brightness of an image using L*a*b* color space? Question: I am trying to change the L* values of an image in L*a*b* color space. But the resultant image is not what I expected. How should I change brightness of the image using the L*a*b* values? My Code: imd = np.asarray(ibuffer).copy() imgb …
Color Correction Matrix in LAB Color Space – OpenCV Question: Suppose we have l,a,b values for 5 circles inside an image. These values are calculated using OpenCV. imlab=cv2.cvtColor(circle_img_only,cv2.COLOR_BGR2LAB).astype(“float32”) Actually, we take 100 random pixels from every circle and calculate normal average LAB value for every circle (Which I am not sure it is the right …
How to get HSV and LAB color space? Question: I’m using OpenCV with Python. My code is: img_hsv = cv2.cvtColor(image,cv.CV_BGR2HSV) img_lab = cv2.cvtColor(image,cv.CV_BGR2Lab) When I access to a pixel value I’m getting values in RGB space, for example: img_hsv[x][y] = [255,255,255] How can I normalize HSV and LAB color space? HSV = 360ยบ 100% 100% …
