Saving images from figure window in Matlab.

Question

Naseeb Gill 2017-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/350554-saving-images-from-figure-window-in-matlab

评论： Naseeb Gill 2017-7-28

I'm saving images 500 dpi, using rendering in export setup from figure window in Matlab. But there is little change I have to make. I get image like below: I mean there is lot of white space at sides which I want to eliminate. White portion is marked with black sketch in image.

I want to make my image look like this: Whitout any white portion at sides.

 How to do this?
Thanks.

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Answer 1

Chad Greene 2017-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/350554-saving-images-from-figure-window-in-matlab#answer_275824

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I recommend using export_fig, which crops the white space by default. The syntax is simply

export_fig myfig.png -r500

if you want 500 dpi. If you want a tiny bit of white space around the image, say, 1% of the figure width, do

export_fig myfig.png -r500 -p0.01

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Naseeb Gill 2017-7-27

编辑：Naseeb Gill 2017-7-27

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Thanks @Chad Greene for reply but when I proceed as you suggest I get following error:

Undefined function 'export_fig' for input arguments of type 'char'.
Error in boxplot_graph_draw (line 84)
 export_fig myfig.png -r500 -p0.01 ;

The code I'm running is

// values of Rc, Gc etc. I loaded from laptop in workspace in form of //array
  X = [Rc;Gc;Bc;Rs;Gs;Bs;Rl;Gl;Bl];
  G = [zeros(length(Rc), 1); ones(length(Gc), 1); 2*ones(length(Bc), 1);3*ones(length(Rs), 1);...
      4*ones(length(Gs), 1);5*ones(length(Bs), 1);6*ones(length(Rl), 1);7*ones(length(Gl), 1);...
      8*ones(length(Bl), 1)];
   boxplot(X,G,'Labels',{'Yc','Cbc','Crc','Ys','Cbs','Crs','Yl','Cbl','Crl'});
     export_fig myfig.png -r500 -p0.01 ;

I added export_fig folder to maltlab path also.

Naseeb Gill 2017-7-28

Thanks @Chad Greene It works fine. Actually I made mistake in path addition. What I did was, I just select altmany-export_fig-5be2ca4 folder and click on save. But what I need to do is, I should open this folder using pathtool and then click on save.

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