MATLAB: How to display a histogram

histogram

I have changed the value of some pixels of an image H. After that, how I can find the modified histogram?

Best Answer

Use imhist(H)

Related Solutions

MATLAB: For texture classification i have taken lbp as a feature..after applying lbp i have taken histogram..how to normalise the bins of histogram..and what is meant by normalise bins of histogram

Normalization would mean that you either divide by the max value of the counts, or that you divide by the sum of all the counts.

[pixelCounts grayLevels] = imhist(lbpImage, 256);
normalizedHist1 = pixelCounts / max(pixelCounts(:));
normalizedHist2 = pixelCounts / sum(pixelCounts(:));

It means that either the max value of any count will be 1.0, or that the sum of all counts would now be 1.0, depending on which method you use.

MATLAB: How to display the bin count of each bar at the top of each histogram bar

x = randn(10000,1);
h = histogram(x) ;
x = h.BinEdges ;
y = h.Values ;
text(x(1:end-1),y,num2str(y'),'vert','bottom','horiz','center'); 
box off

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Related Solutions

MATLAB: For texture classification i have taken lbp as a feature..after applying lbp i have taken histogram..how to normalise the bins of histogram..and what is meant by normalise bins of histogram

MATLAB: How to display the bin count of each bar at the top of each histogram bar

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