将MATLAB图形保存为特定的分辨率 [英] Saving MATLAB graphs in a specific resolution

问题描述

如何更改MATLAB图形的分辨率?默认值似乎是96x96 PPI .

How do I change the resolution of my MATLAB graphs? The default seems to be 96x96 PPI.

推荐答案

您可以使用print命令进行保存；方法如下:

You can save using the print command; here's how:

h1=figure;
your plotting commands here

print(h1,'-djpeg','-r150','filename')

-r150参数将分辨率设置为150 DPI.您可以根据需要将其设置为更高或更低.这是假设您要另存为JPEG.如果没有，则还有其他选项，例如PNG的-dpng，24位位图的-dbmp等.在print的帮助部分中可以找到更多选项.

The -r150 argument sets the resolution to 150 DPI. you can set it higher or lower depending on your need. This is assuming you're saving as a JPEG. If not, there are other options such as -dpng for PNG, -dbmp for 24-bit bitmap, etc. more can be found in the help section for print.

也就是说，如果您的绘图仅由线条组成，我建议您使用-depsc将其另存为EPS文件，该文件具有可伸缩性和无损性.您也不必定义分辨率，因此只需完成

That said, if your plot consists only of lines, I would recommend using -depsc which saves it as an EPS file, which is scalable and lossless. You also won't have to define a resolution, so you can simply do

print(h1,'-depsc','filename')

您可以将此EPS文件转换为PDF，并保持相同的分辨率，但在应用程序和平台之间具有可移植性.我不建议直接保存为PDF，因为MATLAB会在绘图周围放置额外的空白，EPS边界框很紧，而且看起来很整洁.

You can convert this EPS file to PDF and retain the same resolution, yet have portability between applications and platforms. I wouldn't recommend saving to PDF directly as MATLAB puts additional white spaces around the plot, wheras the EPS bounding box is tight, and looks neat.

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