Blob finding

Locate centerpoints of blobs in binary (b&w) image using a circular prototype of a given radius.

Version 1.4.0.0 (2.15 KB)
935 Downloads
(0)
28 May 2013

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Input: image, radius to blobs to be located, number of blobs to be located. Output: an image with 1 at the location of blob centers and 0 otherwise.

This code operates by sequentially subtracting prototype functions from the image at the peak xcorr locations between the image and the prototype.

Cite As

Alexander Farley (2026). Blob finding (https://in.mathworks.com/matlabcentral/fileexchange/33953-blob-finding), MATLAB Central File Exchange. Retrieved .

Categories

Find more on Image Arithmetic in Help Center and MATLAB Answers

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
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Version Published Release Notes
1.4.0.0

Changed title from "fitting" to "finding"
1.3.0.0

Corrected a bug in the extraction/pasting segment
1.2.0.0

Added screenshot demonstrating input image type
1.1.0.0

Added helper function findit.m
1.0.0.0