Figure normalization based on same colours

Hello,

I have my code here;

color_image = {};

map = hsv(256);

for i = 1:size(Data_SWS_BMd_A3,2)

image = Data_SWS_BMd_A3{i}.SWS_Img;

uint_image = uint8(255*mat2gray(image));

color_image{i} = ind2rgb(uint_image, map);

end

I want to normalize my figures base on one range colour to find a relationship between them.

Can anyone help me 1) how I can nomalize it?

2) how should I change the binary of my picture to expand the range of colour?

I need the answer soon, I would be grateful if anyone can help me regarding that.

Regards

Thanks