Xaliander

Results 7 issues of Xaliander

Update py_depthmap.rst

Code was non functional.

Update py_matcher.rst

The code needed some overhaul.

Update py_matcher.rst

Must be WTA_K == 3 or 4 as mentioned in https://docs.opencv.org/master/dc/dc3/tutorial_py_matcher.html

Update py_sift_intro.rst

IMPORTANT: CODE LEAD TO SEGMENTATION FAULT! New code taken from: https://docs.opencv.org/master/da/df5/tutorial_py_sift_intro.html

Update py_sift_intro.rst

grammar

Update py_features_harris.rst

Minor edit and reference link added.

Update py_features_meaning.rst

Added quotes around the most basic question. Also, AFAIK only single quotes are used in US English.