How i can plot gray-scale image values?
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I want to 2-D plot the grayscale image values.The below code plot the 3-D values of a grayscale image.What i can use
instead of meshgrid function to plot 2-D values of a gray scale image.Please see the pictures for more details.
Ix = imread('C:\Users\Haseeb\Desktop\images\capture.jpg');
I= rgb2gray(Ix);
x = 1:size(I,1);
y = 1:size(I,2);
[X,Y] = meshgrid(x,y);
figure,plot3(X,Y,I)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/190265/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/190266/image.png)
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Ameer Hamza
2018-5-2
You can plot it using histcounts().
counts = histcounts(grayImage, 0:256)
plot(counts)
4 个评论
Ameer Hamza
2018-5-4
You cannot recover an image back from this plot because the information about the location of each pixel is lost. Can you think of a way by which I can know which pixel belongs to which location by just looking at this plot?
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