Segmentation fault when printing images with transparency and -nodisplay option

Question

Marta Salas 2014-4-9

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/125061-segmentation-fault-when-printing-images-with-transparency-and-nodisplay-option

评论： Jan Mrkos 2015-4-7

I'm running MATLAB 2012a on Linux's command line with -nodisplay option. When I run my code I get a segmentation fault. The following piece of code reproduce my error. The error is produced when the plot has transparencies. If I comment out this line put alpha(h2,0.5);, it works fine.

filename ='mypng.png'; 
Image1 = imread('peppers.png');
[row,col,~]=size(Image1);
Image2 = ones(row,col);
f=figure(1);set(f,'Visible','off'); 
h1=imagesc(Image1);
hold on 
h2=imagesc(Image2);
alpha(h2,0.5);
axis off;
print(f,'-dpng',filename);

The result is: Segmentation fault (core dumped).

Any idea how to fix this problem?

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Answer 1

Marta Salas 2014-6-18

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/125061-segmentation-fault-when-printing-images-with-transparency-and-nodisplay-option#answer_141459

I'm answering my own question, just in case someone else run into this problem (although it's improbable). The purpose of running matlab in terminal with -nodisplay option is because I work on a headless server.

The use of -nodesktop instead of -nodisplay does the trick.