webcam_track_blobs_2.py 文件源码

def undistort_crop(orig_img):
    #undistort and crop
    dst = cv2.undistort(orig_img, mtx, dist, None, newcameramtx)
    x,y,w,h = roi
    crop_frame = dst[y:y+h, x:x+w]    
    return crop_frame