Saving Figure Data into a Matrix
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Hello.
I'm using 'image()' to display an image. I'm adding some annotations using text.
I'd like to save the final result as matrix (3 Channels of the displayed image width and height). Something like using: OI = get(imageHandler, 'CData'); Yet which includes all the annotations I added.
I know I can use 'saveas' and 'print' yet then the data undergoes some interpolation while I want the data as it is back as a matrix.
Anyone knows how to do it?
Thanks.
采纳的回答
Gerd
2011-7-4
Hi Royi,
you can use the getframe command.
logo = imread('Logo.jpg','jpg');
image(logo);
text(20,30,'Hello')
f=getframe(gcf)
new=f.cdata
imwrite(new,'new.jpg','JPEG')
Gerd
3 个评论
Yue
2019-8-14
I solved this problem just now.
You can try gca command.It returns the current figure or image.
Example:
Frame = getframe(gca);
FrameData = Frame.cdata;
imshow(FrameData)
imwrite(FrameData,'teat.png','PNG');
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