How do you save a figure with a trasparent background?

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Ron Beck
Ron Beck 2018-3-2
移动：DGM 2024-10-8
How do you save a figure with a trasparent background? I want to save a figure as a png image that has a transparent background so I can put the image into PowerPoint and the PowerPoint graphic will show through the Matlab figure.

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回答（3 个）

jonas
jonas 2018-3-2
编辑：Stephen23 2018-3-14
The most recent version of export_fig includes a -transparent option for .png export
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Ron Beck
Ron Beck 2018-3-5
Thanks for the response, but neither worked. Is it critical where I put the lines of code?
jonas
jonas 2018-3-14
Sorry for the late response. If you did not solve it already perhaps you can upload the code and I will have a look.
The first option calls the current axis (gca), so it should be located after the figure. The other option should be at the beginning of the code.

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cui,xingxing
cui,xingxing 2021-8-30
Ran in:
since Matlab R2020a, use "exportgraphics", for example ,you can do like this
x = 0:.1:2*pi;
y = sin(x);
% save to transparented image
figure;
plot(x,y,'LineWidth',4);
set(gcf, 'color', 'none');
set(gca, 'color', 'none');
exportgraphics(gcf,'transparent.eps',... % since R2020a
'ContentType','vector',...
'BackgroundColor','none')
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haoming
haoming 2024-8-7
移动：DGM 2024-10-8
Hi, I received the same error
my code is:
exportgraphics(gcf,'sweep_plot.jpg','Resolution',600,'BackgroundColor','none')
error:
Warning: Background transparency is not supported; using white instead.
Juan
Juan 2024-10-8
移动：DGM 2024-10-8
Haoming,
you are trying to generate a jpg with a transparent background, which is not supported, change it to png and it should work

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Subba Reddy
Subba Reddy 2020-1-22
Non matlab way, Can use gimp software to remove white background from image, by selecting the background with color select tool, invert selection and copy. Then create new gimp window with background option as tranperancy, and paste it into that and export that as png. Not programmable but can be used to prepare images for presentation.

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