opencv3.1+cuda stereo match | gray window?

asked 2016-05-28 00:14:38 -0500

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I use cv::cuda::StereoBeliefPropagation or cv::cuda::StereoConstantSpaceBP to test like opencv stereo sample, but the result is a gray window. I don't know how to get the correct disp image by BP or CSBP.

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