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How to save a figure with inside an image and a plot ?

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Axel L
Axel L 2013-9-3
Hello,
I would like to read an image and to plot anything inside. Then save this figure with a good resolution. I used this code :
figure,
imshow(image);
hold on;
plot(...);
hold off;
F = getframe;
imwrite(F.cdata,directory);
But the image out dont' have the same resolution that image in. Could you help me please ?

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Image Analyst
Image Analyst 2013-9-3
Is your image bigger than your screen? Then it won't do what you want.
Try export_fig(). http://www.mathworks.com/matlabcentral/fileexchange/index?sort=downloads_desc&term=

更多回答（1 个）

Youssef Khmou
Youssef Khmou 2013-9-3
编辑：Youssef Khmou 2013-9-3
Axel,
By using the format TIFF, you can control the resolution horizontally and vertically , that is also available for other extensions, like JPEG you have the parameter Quality , or PNG that contains two scalars XResolution & YResolution , here is an example :
I=imshow(imread('circuit.tif'));
hold on,
plot(100*randn(100,1))
hold off
F=getframe;
imwrite(F.cdata,'C:\test.tiff','resolution',[100 100])

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