Extract image from multi-image figure window?

Question

Kamil Stachurski 2023-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/1989523-extract-image-from-multi-image-figure-window

评论： Mario Malic 2023-6-30

Hello,

I have little question. I have nine images of the brain on one figure window. How to extract single image to new figure window from multi-image figure window?

Best regards,

Kamil

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Image Analyst 2023-6-29

If you have any more questions, then attach your image and code to read it in with the paperclip icon after you read this:

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Are they in different subplot axes on one figure, or are all 9 images just stitched together in a single image and shown in a single image? We don't know because you forgot to show us.

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Answer 1

Mario Malic 2023-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/1989523-extract-image-from-multi-image-figure-window#answer_1264538

在 MATLAB Online 中打开

Hey,

fig = gcf; % Current figure
ax = findall(fig, 'type', 'axes');
for i = 1 : numel(ax)
    figH = gobjects(1, numel(ax));
    figH(i) = figure();
    ax(i).Parent = figH(i);
    ax(i).Position = [0.1300 0.1100 0.7750 0.8150];
    % exportgraphics(ax(i), sprintf("Picture %d.jpg", i));
end

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DGM 2023-6-29

编辑：DGM 2023-6-29

Where are the image(s)?

Are they in a figure window on screen? If so, how did they get there? If you have the code that created the figure window, then use the images that you put into the figure instead of trying to extract them from the figure. If the image itself is composed of multiple frames, then maybe it needs to be split in some manner.

If the only thing you have is the figure from a .fig file, then finding the images depends on how exactly they're being displayed in the figure.

If the only thing you have is a screenshot of a figure window, then use imcrop() and know that all you're getting is a degraded facsimile of whatever the original image used to be.

Depending on what you have (code that creates a figure, a fig file, or a raster image file) include that. The PDF doesn't really indicate what you have, and it also can't be used in any demonstration of a solution.

Mario Malic 2023-6-30