python - Extracting individual frames from an image -

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i new python , want extract r, g , b frame separately image.

for instance, variable stores image img

what want know;

how make rimg = img (:,:,1) gimg = img (:,:,2) bimg = img (:,:,3) ofcource, these matlab pseudo codes , rimg, gimg , bimg variables.

numpy style :

bimg = img[:,:,0] gimg = img[:,:,1] rimg = img[:,:,2]

opencv style :

b,g,r = cv2.split(img)

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