How to plot the histogram of a volume using imhist?

I have array of TIFF images. I have stacked them to make a volume. How can I plot the histogram of the volume in MATLAB? The function "imhist" expects its input to be two-dimensional.

I have also tried to plot the histogram of individual TIFFs and consolidate, but in vain.

Here is the code I tried to consolidate the histograms:

counter = 0;
for i = 1:numel(image_files)
  [count, x] = imhist(vol(:,:,i));
  counter = count + counter
end;

Is/are there any other ways I could plot the histogram of a volume in MATLAB?

Answer 1

[Sean de Wolski]

So you want to see the histogram as a surface plot? There are a couple of tools for this on the fex. Or do you want a 2-d histogram?

If 2d:

hist(V(:));  %convert V to column vector

if 3d: call histc on each slice and record values in each row of a new matrix. surf it.

FEX:histogram+3d

[Stan]

Thanks, Sean. I wanted the 2-D version.