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Hend K.

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04 Dec 2012 Histograms of Oriented Gradients mex function for calculating histograms of (oriented) gradients (Dalal & Triggs CVPR 2005). Author: Leo

Hi Leo,
That was really helpful thank you very much

01 Dec 2012 Gabor filter bank Generates Gabor filter bank Author: Darko Juric

Hi Darko Juric,
Thank you for this beautiful code. But why the responses size is lesser than the original image?

29 Nov 2012 Histograms of Oriented Gradients mex function for calculating histograms of (oriented) gradients (Dalal & Triggs CVPR 2005). Author: Leo

Hi Leo,
thank you for your fast reply. I have one more question as I read your code I noticed that there is no overlapping between the blocks is that right?

26 Nov 2012 Histograms of Oriented Gradients mex function for calculating histograms of (oriented) gradients (Dalal & Triggs CVPR 2005). Author: Leo

Regarding the parameters, how to set:
1. unsigned gradients (0°-180°) or signed gradients (0°-360°)
2. normalization scheme, I guess only L2-norm is used?

and what do you mean by 1 for oriented gradients and 0 otherwise?

10 Sep 2012 Histograms of Oriented Gradients mex function for calculating histograms of (oriented) gradients (Dalal & Triggs CVPR 2005). Author: Leo

Thank you for sharing.
I got this error message:
atan2: DOMAIN error
because of the division by zero, could you please fix it. the histogram is computed and it doesn't contain any strange NAN's etc but the message is annoying.

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