Detect circles with various radii in grayscale image via Hough Transform

版本 1.1.0.0 (113.3 KB) 作者: Tao Peng
Detect circular shapes in a grayscale image. Resolve their center positions and radii.
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更新时间 2010/11/17

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编者注: This file was selected as MATLAB Central Pick of the Week

Circular Hough transform based on the gradient field of an image.
1. Operates on grayscale images, NOT B/W bitmaps.
2. NO loops in the implementation of Circular Hough transform, which means faster operation but at the same time larger memory consumption.
3. Detection of radii works for concentric circles as well.

引用格式

Tao Peng (2024). Detect circles with various radii in grayscale image via Hough Transform (https://www.mathworks.com/matlabcentral/fileexchange/9168-detect-circles-with-various-radii-in-grayscale-image-via-hough-transform), MATLAB Central File Exchange. 检索来源 .

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版本 已发布 发行说明
1.1.0.0

Added Signal Processing Toolbox as additional product requirement
1.0.0.0

Fixed a bug in the code which causes the following problem:
??? Attempted to access SgnCv_LMPos(0); index must be a positive integer or logical.
Error in ==> CircularHough_Grd at 630
cirrad(k) = SgnCv_LMPos(end);