MATLAB Answers

Help on showing a mask in an axes object for a MATLAB GUI

4 views (last 30 days)
AP
AP on 9 Feb 2013
Dear All,
I have designed a GUI which has an axes object. I want to create and overlay a mask on an image in the axes of the GUI, as shown below in the picture. I tried the tips in this link but MATLAB complains with the following error message:
The name 'AlphaData' is not an accessible property for an instance of class 'axes'.
My question is:
  • Then how can I overlay it on the original image (shown in grayscale in the image)?
In fact, the user selects an image by my MATLAB GUI. The code then identifies the areas in the image, which have certain properties, and highlight those areas with the pattern I showed in the uploaded picture. The final image, which is an overlay of the original image and the mask template, will be shown in an axes object in the GUI.
Thanks,
Ahmad

  0 Comments

Sign in to comment.

Accepted Answer

Jan
Jan on 10 Feb 2013
Please post the code, which causes the error. The 'AlphaData' property should not be set for the AXES, but in:
set(h, 'AlphaData', alpha_data);
the handle "h" belongs to an image object. The error message appears, if you use the axes' handle instead.

  0 Comments

Sign in to comment.

More Answers (1)

Image Analyst
Image Analyst on 9 Feb 2013

  4 Comments

Show 1 older comment
Image Analyst
Image Analyst on 9 Feb 2013
Sorry - I didn't notice because the URLs were different. However his code works fine for me. But he's using it on the handle of the image, not of the axes. What does your code do?
AP
AP on 9 Feb 2013
The user selects an image by the MATLAB GUI. The code then identifies the areas in the image, which have certain properties, and highlight those areas with the pattern I showed in the uploaded picture. The final image, which is an overlay of the original image and the mask template, will be shown in an axes object in the GUI.

Sign in to comment.

Sign in to answer this question.


Translated by