I have to plot some lines over an image. Lines are rotated, so to align them with image I used camroll(-90). But now the whole image is rotated.

Here is my code:

 U = load('C:\Users\khan1\jupyter_test_code\CRBD\TMGEM results\crop_row_001.tmg');
 O = imread('C:\Users\khan1\jupyter_test_code\CRBD\Images\crop_row_001.JPG');
 h1 = figure;
 imshow(O);
 figure(h1)
 ax = gca;hold on;
 plot(ax,U,'color','red','LineWidth',1); 
 camroll(ax,-90);
 
 

Here is the output I am getting. As you can see, lines are not aligned with the green leaves.

Link for .tmg and .jpg files:

https://drive.google.com/open?id=1dIMlWPMGYuv9QAox24UQ4dLAyyTVfXsb

[Ameer Hamza]

How do you want to rotate the line? DO you want to make them horizontal?

[md khan]

Yes. The lines should be over the green leaves. @Ameer

Answer 1

[Ameer Hamza]

Use the rotate function to just rotate the axis while keeping the figure at its location: https://www.mathworks.com/help/matlab/ref/rotate.html

 U = load('C:\Users\khan1\jupyter_test_code\CRBD\TMGEM results\crop_row_001.tmg');
 O = imread('C:\Users\khan1\jupyter_test_code\CRBD\Images\crop_row_001.JPG');
 h1 = figure;
 imshow(O);
 figure(h1)
 ax = gca;hold on;
 p = plot(ax,U,'color','red','LineWidth',1); 
 rotate(p, [0 0 1], -90);

If there is some issue, attach the image and variable 'U' in a .mat file.

[md khan]

That almost worked, thank you. There is some weird scaling issue. The lines are shifted left a bit.

[Ameer Hamza]

I am not sure about the content of the U matrix, so it is difficult to suggest a solution by guess. If you can attach the file, it will make it easier to suggest a solution.

[md khan]

https://drive.google.com/open?id=1dIMlWPMGYuv9QAox24UQ4dLAyyTVfXsb

Here is the link for the files. Thanks again for the help.

[Ameer Hamza]

Run this

img = imread('crop_row_001.JPG');

data = load('crop_row_001.tmg');

imshow(img);
hold on
plot(data, 1:size(data,1), 'r', 'LineWidth', 2)

[md khan]

Hey, this worked!! :) Thanks a lot.

[Ameer Hamza]

I am glad to be of help.