MATLAB: Set size of image without border and save

burn graphics into imageimage processImage Processing Toolboxsave figure

I have an original.jpg of size (320 * 240). After plotting some line on the image I get processed.jpg. But the size of processed.jpg is (504 * 353) with white border.
I need to processed.jpg to be the same size as original.jpg WITHOUT any white border. How to do that?
Attached is the code used to draw lines over the original image. I am using 2019a
img = imread('C:\Users\khan1\jupyter_test_code\CRBD\Images\crop_row_274.JPG');
data = load('C:\Users\khan1\jupyter_test_code\CRBD\TMGEM results\crop_row_274.tmg');
fig = figure;
imshow(img);
hold on
plot(data, 1:size(data,1), 'r', 'LineWidth', 1);

Best Answer

I guess you are use getframe to save the image with 3 lines. getframe cannot keep the resolution of the original image. You may use imresize(), but that will modify your original image to some extent. If you have computer vision toolbox, then you can use insertShape() to fuse the lines into the pixel of the image directly.
img = imread('crop_row_001.JPG');
data = load('crop_row_001.tmg').';
data2 = zeros(size(data,1), size(data,2)*2);
data2(:,1:2:end) = data;
data2(:,2:2:end) = repmat(1:size(data,2), size(data,1), 1);
img = insertShape(img, 'Line', data2, 'Color', 'r', 'LineWidth', 1);
imshow(img);
imwrite(img, 'filename')
P.S.: I used the image and data file from your other question, which I answered.
The attached image has resolution of 320 * 240.
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