PIL rotate image colors (BGR -> RGB)

Question

I have an image where the colors are BGR. How can I transform my PIL image to swap the B and R elements of each pixel in an efficient manner?

Answer 1

Adding a solution using the ellipsis

image = image[...,::-1]

In this case, the ellipsis ... is equivalent to :,: while ::-1 inverts the order of the last dimension (channels).