common_scripts/draw_image at master · xhs400/common_scripts · GitHub

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clear all;
close all;
clc

slice = 1;

folder = 'path/to/image';

image_file = sprintf('%s/image.nii.gz', folder);
imgnii = load_nii(image_file);
image = imgnii.img;
if slice == 1
    display_image = squeeze(image(x,:,:));
elseif slice == 2
    display_image = squeeze(image(:,y,:));
else
    display_image = squeeze(image(:,:,z));
end
[m,n] = size(display_image);

figure,

imagesc(imrotate(display_image,90),[0 1]), axis image, axis off, colormap hot

set(gcf, 'Position', [100, 100, 2*m,2*n]);

ax = gca;
outerpos = ax.OuterPosition;
ti = ax.TightInset;
left = outerpos(1) + ti(1);
bottom = outerpos(2) + ti(2);
ax_width = outerpos(3) - ti(1) - ti(3);
ax_height = outerpos(4) - ti(2) - ti(4);
left = outerpos(1);
bottom = outerpos(2);
ax_width = outerpos(3);
ax_height = outerpos(4);
ax.Position = [left bottom ax_width, ax_height];


fig=gcf;
fig.PaperPositionMode = 'auto';
fig_pos = fig.PaperPosition;
fig.PaperSize=[fig_pos(3) fig_pos(4)];
print(sprintf('heat_image_%g', slice), '-dpng');