How to replace a pixel value of my image with another value?

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Hi everyone,
I have a pixel value of my image, which I would like to replace with another pixel value from the same image.
The way I want to do this to replace the coordinate value. I have the coordinate [34 71] in my image, which I would like to replace with the value from the coordinate [34 55]
Any help on this would be greatly appreciated.

Accepted Answer

JESUS DAVID ARIZA ROYETH
JESUS DAVID ARIZA ROYETH on 7 Feb 2020
works for RGB ,grayscale, and black and white images
yourimage(34,71,:)=yourimage(34,55,:)

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