Question: converts a color image to grayscale without using any built-in OpenCV or Python function by using the following unfinish code. img 200x200x3 (three-dimensional matrix) R=

converts a color image to grayscale without using any built-in OpenCV or Python function by using the following unfinish code.

img 200x200x3 (three-dimensional matrix)

R= img[:,:,0]

B= img[:,:,1]

G= img[:,:,2]

Gray= (R+G+B)/3

imshow()

Convert that array to image

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