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OCL StereoBM and images needing negative minimum disparity

asked 2014-02-06 10:10:09 -0500

I was wondering if there is any reason why there is no ability to set the minimum disparity?

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answered 2014-02-06 16:51:42 -0500

xaffeine gravatar image

updated 2014-02-06 16:52:25 -0500

If minDisp is not available, you can shift one of your images left or right by the amount you would have used for minDisp. After doing the BM, you can then subtract/add the same amount to the results to compensate.

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That would still leave me with issues on one of the edges though.

Lockethane gravatar imageLockethane ( 2014-02-07 08:50:41 -0500 )edit

I think the same would be true if you could set minDisp.

xaffeine gravatar imagexaffeine ( 2014-02-07 13:05:39 -0500 )edit
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answered 2014-02-06 16:46:21 -0500

xaffeine gravatar image

updated 2014-02-06 16:49:42 -0500

StereoBM has a state member that points to a CvStereoBMState. The CvStereoBMState has a member called minDisparity. If you have a StereoBM variable called bm, you just need to set bm.state->minDisparity to the value you want.

EDIT: I might be wrong about the OCL version. This is what works in the regular (cpu) version of StereoBM.

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Asked: 2014-02-06 10:10:09 -0500

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Last updated: Feb 06 '14