Is it a result of k-means clustering? If so, you can count each color pixel easily by using the output variable of kmeans function.
How to count each colour pixel of an image?
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muhaimin mahfudz
el 30 de Sept. de 2018
Comentada: Image Analyst
el 2 de Oct. de 2018
I am trying to quantify the value of of each matter of the brain using matlab. I have segmented the image and result as shown below.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/196814/image.jpeg)
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Image Analyst
el 30 de Sept. de 2018
Take the histogram of your segmented/classified image
counts = imhist(classifiedImage);
Each class will have a certain value, like gray matter is 1, background is 0, white material is 2, etc. imhist() simply counts the pixels in each class.
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Image Analyst
el 1 de Oct. de 2018
imhist() will do it. You pass in the classified image, not an RGB image, but the image you got from kmeans. See attached demo.
Image Analyst
el 2 de Oct. de 2018
Do you still not understand? If so, give me the script you used to create that image along with the original image.
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