I have to write a test case in Python to check whether a jpg image is in color or grayscale. Can anyone please let me know if there is any way to do it with out installing extra libraries like OpenCV?
You can check every pixel to see if it is grayscale (R == G == B)
from PIL import Image
def is_grey_scale(img_path):
img = Image.open(img_path).convert('RGB')
w, h = img.size
for i in range(w):
for j in range(h):
r, g, b = img.getpixel((i,j))
if r != g != b:
return False
return True