将 Matlab 图形导出为 PNG? [英] Export Matlab figure as PNG?

问题描述

我需要自动将图形从 Matlab 导出到 PNG.我的图的大小为 600x200 像素:

I need to automatically export figures from Matlab to PNG. My figure has a size of 600x200 px:

hFig = figure(1); 
set(hFig, 'Color', [1 1 1]); % backgroundcolor white
set(hFig, 'Position', [500 500 600 200]) % size 600x200

我试过例如

print -dpng image.png

但 image.png 大于 600x200 像素.使用保存"按钮从图形窗口 GUI 手动导出图形效果很好，我想自动/从脚本执行此操作.感谢您的任何提示！

but the image.png is larger than 600x200 px. Exporting the figure manually from the Figure Window GUI using the "save" button works great, I want to do exactly this automatically / from a script. Thanks for any hint!

推荐答案

我也知道图形保存的问题与屏幕上看起来不一样.

I also know the problem that figures save never look the same as on screen.

saveas 命令可能对您有用 - 但也会为我更改一些分辨率.

There is the saveas command which might work for you - but does also some resolution changing for me.

我所知道的唯一方法就是像这样仔细设置每个方面:

Only way I know is to carefully set every aspect like this:

set(gcf,'PaperUnits','inches','PaperSize',[2,6],'PaperPosition',[0 0 2 6])
print('-dpng','-r100','test')

(因此纸张尺寸为 2x6" 并以 100dpi 打印，PaperPosition 很重要，否则您将有一些额外的边框.)

(so paper size is 2x6" and print with 100dpi, PaperPosition is important as you will have otherwise some extra border.)

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