Computes disparity map for the specified stereo pair

disparity = bm.compute(left, right)

Input

• left Left 8-bit single-channel image.
• right Right image of the same size and the same type as the left one.

Output

• disparity Output disparity map. It has the same size as the input images. Some algorithms, like cv.StereoBM or cv.StereoSGBM compute 16-bit fixed-point disparity map (where each disparity value has 4 fractional bits), whereas other algorithms output 32-bit floating-point disparity map.

The method executes the BM algorithm on a rectified stereo pair. Note that the method is not constant, thus you should not use the same cv.StereoBM instance from within different threads simultaneously.