Saving an imagesc file as .png without the white borders?

조회 수: 12(최근 30일)
spider_plantt
spider_plantt 2020년 8월 6일
편집: DGM 2022년 8월 3일
I want to save a series of images that output in the format 'matlab.graphics.primitive.image' as PNGs without that white border PNGs save with. My code is below--is there any way to output these images cropped of their white border? I've already tried setting my 'iptsetpref' as 'tight', to no avail.
clc;clear all;
load('sphere.mat');
for j=80:90
I=imagesc(squeeze(sphere(:,j,:)));
set(gca,'XTick',[]);
set(gca,'YTick',[]);
filename=sprintf('sphere%d',j);
saveas(I,filename,'png');
end

답변(2개)

Sudheer Bhimireddy
Sudheer Bhimireddy 2020년 8월 6일
Try:
print(I,filename,'-dpng');
By white border if you mean the background outside the figure, then you would have to export it to epsc format
print(I,filename,'-depsc');

DGM
DGM 2022년 8월 3일
편집: DGM 2022년 8월 3일
If you have an image and want to save the image, save the image. Don't display the image and then save a screenshot of the displayed image. Don't display the image and then take a photo of the monitor with your phone. Don't describe the image as a thousand words of poetry or as an interpretive dance.
Save the image array -- not the graphics object or the parent figure. Use imwrite(). Anything else is not just self-inflicted inconvenience; it's often destructive.

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