Scale RGB values for a matrix and plot it as image according to the scaled values

I have a matrix Tot_Magnet (100,100,3) and when I plot it as image then I get black image, because the RGB vales are very small. That's why I want to plot it with a scaled values:

Bx=Tot_Magnet (:,:,1);

By=Tot_Magnet (:,:,2);

Bz=Tot_Magnet (:,:,3);

max_r = max(abs(Bx(:)));

min_r = min(abs(Bx(:)));

max_g = max(abs(By(:)));

min_g = min(abs(By(:)));

max_b = max(abs(Bz(:)));

min_b = min(abs(Bz(:)));

And now how I can determine the minimum value und the maximum for the neu scaled RGB values instead [0-255] and then plot it as image?

Answer 1

[Image Analyst]

Try []:

imshow(Tot_Magnet, []);

or else mat2gray()

imshow(mat2gray(Tot_Magnet));

or imadjust():

imshow(imadjust(Tot_Magnet));