Keep tight borders in image and still keep the title when saving

I have quite a lot of 224x289 images that I want to save. I want to avoid wasting space with borders. Preferably the resulting images should all have the same size including their colorbar + colorbar title + figure title. Here is the code

figure(1);
imshow(image,range);
title('title');
c = colorbar;
c.Label.String = 'Gray value';

I tried saving with

iptsetpref('ImshowBorder','tight')
saveas(gcf,'name.png')

but it cuts away the title.

When saving with

set(gcf, 'PaperUnits', 'centimeters');
set(gcf, 'PaperPosition', [0 0 15 10]); %x_width=10cm y_width=15cm
saveas(gcf,'fig1.tif')

I tried to find reasonable values for width etc but I cannot for the life of me get the figure to show the colorbar with title AND the figure's title. Something always gets cut.

Can someone tell me how I could set my image size by hand or cut the image so that the margins are outside of my title and colorbar title?

[jonas]

Cant you just make the background transparent?

[Nicolas Glienke]

Apparently not. I tried these methods and neither worked. https://de.mathworks.com/matlabcentral/answers/386017-how-do-you-save-a-figure-with-a-trasparent-background

[jonas]

Hmm... That is a reference to one of my own answers so I'm pretty sure it should work. Mind sharing the code and a single image so I can have a look?

[Nicolas Glienke]

I am not sure I am allowed to share my images. But I'd be happy to show you the code. My data is 3-dimensional medical image. I bet you could just load in a random matrix to test my code. I hope this helps

Sv = data(:,:,135); 
range = [0 4000];

Sv = imrotate(Sv,270);
Sv = flip(Sv,1);

figure(1)
imshow(Sv,range);
title('title');
c = colorbar;
c.Label.String = 'Gray value';
saveas(gcf,'name.png');

[Nicolas Glienke]

I have an additional Problem... When I view the figure and expand the window to fit my screen The title is off screen and the 0 and the 4000 on my colorbar are clipped...

[jonas]

Did you actually try export_fig? See my answer below.

Answer 1

[jonas]

Use latest version of export_fig . Attached are two images. One is saved with export_fig and one with saveas.

A = imread('cameraman.tif');
imshow(A)
title('title');
c = colorbar;
c.Label.String = 'Gray value';
iptsetpref('ImshowBorder','tight')

%%Save
export_fig(1,'-jpeg','untitled_1')
saveas(1,'untitled_2.jpg')

Turns out export_fig crops the image by default, exactly as you requested.

[Nicolas Glienke]

yes, this works, thanks for your help!

[jonas]

No problem, happy to help!