OpenCV stereoRectify distorts image

Question

we have a ELP 1.0 Megapixel Dual Lens Usb Stereo camera and we are trying to calibrate it using OpenCV 3.1 in C++. However, the result of the calibration is totally unusable

Answer 1

Hey have you tried changing the value of parameter alpha in function stereoRectify. I remember that once I also obtained such results and changing the value of alpha to 0 did the work for me. Please let me know the results you obtain with alpha = -1, alpha=0.5 and alpha =0