OpenCV GrayScale a RGB
backtorgb = cv2.cvtColor(gray,cv2.COLOR_GRAY2RGB)
Blushing Butterfly
backtorgb = cv2.cvtColor(gray,cv2.COLOR_GRAY2RGB)img = cv2.imread(path)
img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)img_gray_mode = cv2.imread(path, cv2.IMREAD_GRAYSCALE)import cv2
# Reading color image as grayscale
gray = cv2.imread("color-img.png",0)
# Showing grayscale image
cv2.imshow("Grayscale Image", gray)
# waiting for key event
cv2.waitKey(0)
# destroying all windows
cv2.destroyAllWindows()