I have image processing toolbox 8.3 but still "imfindcircles" don't work. What can I do ?

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Khairul Bashar Syed 2014-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/122319-i-have-image-processing-toolbox-8-3-but-still-imfindcircles-don-t-work-what-can-i-do

评论： Jishnu C Rajan 2014-10-23

I need to detect circles in real time video for my project.

But every time I am trying to run "imfindcircles" function on my PC, I have encountered the following error. I have tried MATLAB 2012a, 2012b & 2013a for only this function but no result.

Even the example in the MATLAB help don't run!.

The error is:

Undefined function 'chaccum' for input arguments of type 'double'.

Error in imfindcircles (line 170) [accumMatrix, gradientImg] = chaccum(A, radiusRange, 'Method',method,'ObjectPolarity', ...

Please help me out

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Nitin 2014-3-20

The problem seems to come from the function 'chaccum'?

Khairul Bashar Syed 2014-3-23

But there is nothing named "chaccum". Even I have not found anything on google on 'chaccum'

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采纳的回答

Image Analyst 2014-3-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/122319-i-have-image-processing-toolbox-8-3-but-still-imfindcircles-don-t-work-what-can-i-do#answer_129342

在 MATLAB Online 中打开

Try which:

>> which -all chaccum
C:\Program Files\MATLAB\R2014a\toolbox\images\images\private\chaccum.m  % Private to images

What do you see when you do it?

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Khairul Bashar Syed 2014-4-1

Thank you for your help. Somehow the error got fixed automatically.

Jishnu C Rajan 2014-10-23

for me it shows 'chaccum' not found. how to avoid this problem

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