How to create a colormap attributing specific colour to each element?
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Hi everyone!
I have an array A,
A = [ 1 2 3 4
2 2 3 1
1 1 4 2];
I want to create a colormap but each element needs to be colored in a specific colour, for example, 1 is blue, 2 is black, 3 is green and 4 is yellow.
Thanks
採用された回答
Matt Gaidica
2019 年 1 月 26 日
Given these data, I would do this.
A = [ 1 2 3 4
2 2 3 1
1 1 4 2];
cmap = jet(max(A(:)));
figure;
imagesc(A);
colormap(cmap);
colorbar;
![colormap.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/201629/colormap.png)
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