Get an image from a fgure window

Question

I have an image which has a lot of circles. So I have used imfindcirles and viscircles to find and visualize the circles in a figure window. Now I want to get the image as it is and store it in a variable in the program. I tried using getimage, but it gets only the original image, without the circles marked in it.

Expert Answer

Prashant Kumar PhD Expert

Answered Aug 23, 2026

Did you try to get cdata?

theFrame = get(gca, 'CData');

If that doesn't work, use export_fig.

I am getting an error when I am using cdata. I have attached the code below:

data = imread('coins.webp');  
figure();  
imshow(data);  
[centers radii] = imfindcircles(data,[3 10], 'Sensitivity', 0.92,'Edge', 0.03);  
theFrame = get(gca, 'CData');  
figure();  
imshow(theFrame);

The error is :

Error using hg.axes/get

The name 'CData' is not an accessible property for an instance of class 'axes'.

I tried using copyfig from export_fig directory, but it didnt work either.

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