Saving image with Colorbar in high quality

23 次查看（过去 30 天）

Malte Römer-Stumm 2022-9-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1806550-saving-image-with-colorbar-in-high-quality

评论： Malte Römer-Stumm 2022-9-19

Hi,

I want to save images with a colormap and a colorbar and use the following code below. The code saves a file, but the saved file has a large white frame and contains less pixels than if I display the images via imshow. Below is a comparison of the result of imshow vs. the saved image from the code. How can I save the image(s) in the same quality as seen via imshow?

imshow image:

saved image:

for n=1:length(out(1,1,:))
imshow(out(:,:,n)) %out is a stack containing all images, which are supposed to be saved
colormap parula
colorbar
caxis([0 color_scale]) %color_scale is some integer value, which was calculated previously
temp=getframe(gcf)
img=filename(5*n-4); %this line and the next 2 are for proper naming of the file
img2=split(img,'result of ');
img3=replace(img2,'.tif','.png');
fullfilename=fullfile(folder2,img3{2});
imwrite(temp.cdata,fullfilename)
clear temp
end

3 个评论
显示 1更早的评论隐藏 1更早的评论

Adam Danz 2022-9-16

Have you tried expanding your axes to the size of your figure by setting the position property of your axes?

Malte Römer-Stumm 2022-9-19

I am not sure how to use figure in combination with imshow and getframe. In the examples, which I found, figure was used with some plot command. However if I use f=figure first and then load the imagedata in f, then f isn't a figure anymore and if I load the data first and then declare f as a figure the data is gone. Am I missing something?

请先登录，再进行评论。

请先登录，再回答此问题。