Unable to apply separate colormaps and display in subplots

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Big Ben
Big Ben 2022-6-14
回答： DGM 2022-6-14
Ran in:
I am trying to display a grayscale image with different colormaps in a subplot like so:
original = imread('cell.tif');
subplot(2,1,1); imagesc(original); axis('on', 'image'); title('Before'); colorbar; colormap("parula");
subplot(2,1,2); imagesc(original); axis('on', 'image'); title('After'); colorbar; colormap("turbo");
However, as can be seen in the result, I only get the turbo colormap in both the images.
Why does this happen? I was expecting the first image to have the parula colormap, and the second one to have the turbo colormap.

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采纳的回答

DGM
DGM 2022-6-14
Ran in:
You can fix that by explicitly specifying the axes in the call to colormap().
original = imread('cell.tif');
h1 = subplot(2,1,1);
imagesc(original);
axis('on', 'image');
title('Before');
colorbar;
colormap(h1,"parula");
h2 = subplot(2,1,2);
imagesc(original);
axis('on', 'image');
title('After');
colorbar;
colormap(h2,"turbo");

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