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

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.

Answer 1

[JESUS DAVID ARIZA ROYETH]

works for RGB ,grayscale, and black and white images

yourimage(34,71,:)=yourimage(34,55,:)