how to extract or copy the values of first row and first column of an image

I want to copy the pixel values of first row and first coloumn in an image. and make them as a reference pixel values in the predictor for encoding

Answer 1

[Mandar]

Refer the following link to the MATLAB answer which has already described the potential workaround to the similar query.

Link: https://in.mathworks.com/matlabcentral/answers/151779-how-to-extract-the-value-pixel-values-from-an-image-or-masked-image