First i convert the image to an indexed image, and use only 5 colors to show what is my problem.

clear
img = imread(‘peppers.png’);
[x,map] = rgb2ind(img,5);

figure;
imhist(x,map)

<</matlabcentral/answers/uploaded_files/44260/imhist.PNG>>

the colorbar doesn’t match with the histogarm bars, this is my colormap:

map =

0.2784 0.1373 0.2353
0.7608 0.1686 0.1373
0.8902 0.7255 0.6353
0.4275 0.3765 0.2235
0.8471 0.5569 0.1020

the first one isn’t white, It seems that the colorbar is shifted by one.First i convert the image to an indexed image, and use only 5 colors to show what is my problem.

clear
img = imread(‘peppers.png’);
[x,map] = rgb2ind(img,5);

figure;
imhist(x,map)

<</matlabcentral/answers/uploaded_files/44260/imhist.PNG>>

the colorbar doesn’t match with the histogarm bars, this is my colormap:

map =

0.2784 0.1373 0.2353
0.7608 0.1686 0.1373
0.8902 0.7255 0.6353
0.4275 0.3765 0.2235
0.8471 0.5569 0.1020

the first one isn’t white, It seems that the colorbar is shifted by one. First i convert the image to an indexed image, and use only 5 colors to show what is my problem.

clear
img = imread(‘peppers.png’);
[x,map] = rgb2ind(img,5);

figure;
imhist(x,map)

<</matlabcentral/answers/uploaded_files/44260/imhist.PNG>>

the colorbar doesn’t match with the histogarm bars, this is my colormap:

map =

0.2784 0.1373 0.2353
0.7608 0.1686 0.1373
0.8902 0.7255 0.6353
0.4275 0.3765 0.2235
0.8471 0.5569 0.1020

the first one isn’t white, It seems that the colorbar is shifted by one. imhist, colorbar, indexed image MATLAB Answers — New Questions

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