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Freeman chain code

version 1.1 (2.56 KB) by Mathworlds
Freeman chain code. Binary image. One shape at a time.


Updated 08 Feb 2021

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Editor's Note: This file was selected as MATLAB Central Pick of the Week

For binary images only (use imbinarize to binarize your image)
One shape at a time.


- I, the binary image
- option_display, logical true false to display or not the result


- Code : the Freeman code vector of directions; row vector of integers in the range |[1; 8 ]|
- row_idx0 : the first white pixel row index; integer scalar.
- col_idx0 : the first white pixel column index; integer scalar

Cite As

Mathworlds (2021). Freeman chain code (, GitHub. Retrieved .

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MATLAB Release Compatibility
Created with R2019b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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