Saving image changes size.

4 views (last 30 days)
Calvin Chang
Calvin Chang on 21 Oct 2019
Answered: awezmm on 23 Oct 2019
saveas saves the wrong dimensions, truesize doesn't adjust the image to its true size? In c++ the image just diplays the whole size, but I can't do something similar here.
imwrite does not save the image with the drawn rectangles, but saves the correct dimensions.
How do I fix my code to save the correct dimensions and also the drawn rectangles?
tar_loc = '...\images\';
im = imread([tar_loc '001.jpg']);
fig = figure(420);
imshow(im);
axis on;
window_pos = [ 1131 367 575 534];
template_pos = [1279 508 258 273];
hold on;
r1_window = images.roi.Rectangle(fig.CurrentAxes,'Position', window_pos, 'Label','Window','FaceAlpha', 0, 'Color',[1 0 0]);
r2_template = images.roi.Rectangle(fig.CurrentAxes,'Position',template_pos, 'Label','Template','FaceAlpha', 0, 'Color' , 'y');
I = getimage(fig);
imwrite(I, [filepath 'target.png']) %Saves correct size
truesize(fig)
saveas(fig.CurrentAxes, [filepath 'target_roi.png']); %Saves wrong size
imdon2 = imread([filepath 'target.png']);
size(imdon2)

Answers (1)

awezmm
awezmm on 23 Oct 2019
You have lots options with this package on how to save a figure, like choosing to save at native resolution.

Categories

Find more on Read, Write, and Modify Image in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!