I guess that you should agree on constants and then stick to them. Otherwise, we might have to add a parameter later to chose the conversion standard.
The PR uses "ATSC BT.709 standard constant". Wikipedia says: "When encoding Y’CBCR video, BT.709 creates gamma-encoded luma (Y’) using matrix coefficients 0.2126, 0.7152, and 0.0722 (together they add to 1). BT.709-1 used slightly different 0.2125, 0.7154, 0.0721 (changed to standard ones in BT.709-2)." https://en.wikipedia.org/wiki/Rec._709#Luma_coefficients Victor On Fri, Nov 12, 2021 at 11:28 PM Terry Reedy <tjre...@udel.edu> wrote: > > https://github.com/python/cpython/pull/29512 > adds what appears to be well written conversions between RGB and YUV > color systems, with tests. Are we allowing such improvements? If not, > a module docstring note or comment should be added. > > -- > Terry Jan Reedy > > _______________________________________________ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/FV73RE3TSWDYBOJLZIONUJCX6FA32SZB/ > Code of Conduct: http://python.org/psf/codeofconduct/ -- Night gathers, and now my watch begins. It shall not end until my death. _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/ZWI3UTU3FADBHF4CP3WLTUQVLWNQKPUY/ Code of Conduct: http://python.org/psf/codeofconduct/
