Designing filter

2011 3 31
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更新时间：2025 6 9
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I want to design a filter that can recognize objects of a particular shape e.g round shape, within an image and then return a high pixel value at each spot where it identifies an object. Any help would be appreciated.

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Vidhi Agarwal
Vidhi Agarwal 2025-6-9
编辑：Vidhi Agarwal 2025-6-9

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Hi @ch basit,
I understand that you want to design a filter, that can recignize objects of a particular shape within an image anf then return a high pixel value at each spot where it identifies an object. Below steps can help you in getting started:
  1. Preprocess the image
  2. Detect round objects using "imfindcircles" (Hough transform) or circularity-based filtering with "regionprops".
  3. Mark locations in output image
To understand more about "imfindcircles" refer to the following documentation: https://www.mathworks.com/help/images/ref/imfindcircles.html and for "regionprops" refer https://www.mathworks.com/help/images/ref/regionprops.html
Hope this helps!.

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