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HOG Descriptor function Error

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Algorithms Analyst
Algorithms Analyst 2012-11-7
Hi can any one help me i am running the function HOG but getting an error which is
??? Input argument "Im" is undefined.
Error in ==> HOG at 11 [L,C]=size(Im); % L num of lines ; C num of columns
you can find the function from the link below. http://www.mathworks.com/matlabcentral/fileexchange/index?term=tag%3A%22i+run+your+code%22

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回答（1 个）

Walter Roberson
Walter Roberson 2012-11-7
How are you invoking the code? Are you passing in a grayscale image
Im = rgb2gray( imread('YourFile.jpg') );
hog(Im)
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Walter Roberson
Walter Roberson 2012-11-7
The function is not defined for RGB images. Read the first line of the code where it says "grayscale".

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