Problem of using "imagesc" function

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Amit Chakraborty
Amit Chakraborty on 11 Mar 2022
Answered: DGM on 11 Mar 2022
When I execute the following code it runs perfectly and shows me the slices.
for i = 1:64
figure(1); imagesc(imgaussfilt3(max(img(:,:,i),0))); axis off; axis equal; colormap gray; colorbar;
title(num2str(i));
% caxis([0 0.01]);
% caxis([0.010 0.025]);
% caxis([0.5 2.5]);
pause(0.50);
end
% But I want to plot the slices on the Y axis protion Like:
for i = 1:64
figure(1); imagesc(imgaussfilt3(max(img(:,i,:),0))); axis off; axis equal; colormap gray; colorbar;
title(num2str(i));
% caxis([0 0.01]);
% caxis([0.010 0.025]);
% caxis([0.5 2.5]);
pause(0.50);
end
%% Error : I am having the following error.
Error using image
Color data must be an m-by-n-by-3 or m-by-n matrix.
Error in imagesc (line 52)
hh = image(varargin{:}, 'CDataMapping', 'scaled');
%% Can anyone help me in this issue. Thanks in advance for your kind help.

Answers (1)

DGM
DGM on 11 Mar 2022
You need to reorient the data. You could use permute(), or you can do it with squeeze():
imagesc(imgaussfilt3(max(squeeze(img(:,i,:)),0)));

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