Filters off small noise blobs (speckles) in the disparity map

img = cv.filterSpeckles(img, newVal, maxSpeckleSize, maxDiff)

Input

• img The input 1-channel 16-bit signed disparity image.
• newVal The disparity value used to paint-off the speckles.
• maxSpeckleSize The maximum speckle size to consider it a speckle. Larger blobs are not affected by the algorithm
• maxDiff Maximum difference between neighbor disparity pixels to put them into the same blob. Note that since cv.StereoBM, cv.StereoSGBM and may be other algorithms return a fixed-point disparity map, where disparity values are multiplied by 16, this scale factor should be taken into account when specifying this parameter value.

Output

• img Filtered disparity image.