Forums - fcvCornerHarrisScoreu8 API doesnot return any corners

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fcvCornerHarrisScoreu8 API doesnot return any corners
phalgunb
Join Date: 6 Oct 14
Posts: 18
Posted: Thu, 2018-11-01 23:44
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Hi,

I have tried to use the API fcvCornerHarrisScoreu8 for corner detection. 

version of fast cv used 1.7.1.

fcvCornerHarrisScoreu8(In_Scale2, SRCWIDTH / 2, SRCHEIGHT / 2, SRCWIDTH / 2, harris, SRCWIDTH / 2, xy, NMAXCORNER, ncorners, CORNERTHRESH, 0.04, 3, 2, 1, 1, 1);

corner threshold used was (1.0/(1 << 23))

I am unable to get any corners detected(i see that ncorners returned is 0 ). Is this API disabled?

Any help would be appreciated.

Thanks and Regards,

Phalgun

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Re: fcvCornerHarrisScoreu8 API doesnot return any corners
jeff4s Moderator
Join Date: 4 Nov 12
Posts: 106
Posted: Wed, 2019-01-02 14:05
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Hi,

I think some of the parameters were not set correctly.

Please double check the dimension/stride settings and buffer allocation. For the last 7 parameters please try 100, 0.04, 3, 3, 1, 3, 1.

Cheers,

-Jeff

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