How to save an image to a specific size without white borders

Hello everyone and thak you

Now I'm trying to generate the image for dataset.

I removed the axis data and legend from the figure.

I used export_fig function for getting transparent background.

but I can not make the specfic size image because that option will cut the white borders

so, here is the code I used.

f=figure();
pspectrum(value, fs, 'spectrogram', ...
    'FrequencyLimits', [1.5e+9 3e+9], ...
    'OverlapPercent', 0, 'MinThreshold', threshold);
axis off
colormap(f,jet);
colorbar off;
set(gca,'XColor', 'none','YColor','none', 'DefaultFigureRenderer', 'opengl');
title '';

export_fig('This is path to save the figure' ,'-transparent', '-jpg')

Thank you for your reply :)

[darova]

Maybe you are looking for

export_fig -nocrop

[Daeil Noh]

@darova first, thank you darova.

I already used "-nocrop" option, but when I use the nocrop option, export_fig can not cut the borders :(

Answer 1

[Rishik Ramena]

As I can understand from your query that you want to get a transparent background image of a specific size and without the borders.

From the documentation of the export_fig function, I see that the '-native' option could be of help in your code. And for getting a transparent background, you might want to consider using the 'png' format for saving the image. Here's what your save_fig call would look like.

export_fig('This is path to save the figure' ,'-transparent', '-png', '-native')

[Daeil Noh]

Thank you! :)