What unit does the frequency have (MATLAB Color Histogram)?

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BananaBandana
BananaBandana 2019-10-4
评论： BananaBandana 2019-10-5
Hello !
I used the code snippet at the end of the page of https://de.mathworks.com/help/matlab/creating_plots/color-analysis-with-bivariate-histogram.html and also got a histogram, where the frequency is plotted over the RGB color value. I was just wondering what unit the frequency on the y-axis has, because the values are quite high (up to ~7000). Is it number of screen-pixels with that color?
Thanks a lot for your help!

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Duncan Po
Duncan Po 2019-10-4
The Y axis is number of pixels. The image in the example is 384x512, so it has 196608 pixels.

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