How do I take a screenshot using MATLAB?
显示 更早的评论
Is there a way that I could use MATLAB the same way that I use software such as snipping tool or print screen? For example, I would like to run a code and save an image from a rectangular box on the screen. Is this possible?
采纳的回答
MathWorks Support Team
2021-6-30
编辑：MathWorks Support Team
2021-6-30
This is possible to do in MATLAB by using Java libraries.
% Take screen capture
robot = java.awt.Robot();
pos = [0 0 400 400]; % [left top width height]
rect = java.awt.Rectangle(pos(1),pos(2),pos(3),pos(4));
cap = robot.createScreenCapture(rect);
% Convert to an RGB image
rgb = typecast(cap.getRGB(0,0,cap.getWidth,cap.getHeight,[],0,cap.getWidth),'uint8');
imgData = zeros(cap.getHeight,cap.getWidth,3,'uint8');
imgData(:,:,1) = reshape(rgb(3:4:end),cap.getWidth,[])';
imgData(:,:,2) = reshape(rgb(2:4:end),cap.getWidth,[])';
imgData(:,:,3) = reshape(rgb(1:4:end),cap.getWidth,[])';
% Show or save to file
imshow(imgData)
imwrite(imgData,'out.png')
Note: If you are looking to take a screenshot of a figure window, there are many other tools that are much better suited for this, for example the "print" and "getframe" functions, as well as several featured submissions to File Exchange such as "ScreenCapture" or "export_fig".
1 个评论
Yair Altman
2017-10-22
编辑：MathWorks Support Team
2022-7-1
ScreenCapture: https://www.mathworks.com/matlabcentral/fileexchange/24323-screencapture-screenshot-of-component-figure-or-screen
export_fig: https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Interactive Control and Callbacks 的更多信息
2017-10-11
2022-7-1
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
