Doom9's Forum - View Single Post - Shader implementation of the NEDI algorithm

madshi · 8th June 2014, 16:21

Lossless conversion between RGB <-> YCbCr is useless for me. I'm calculating in 32bit+ float and storing results in 16bit+ int/float, and final output is only 8bit. So there's gigantic headroom, no need for lossless conversion. It's *MUCH* more important to use a conversion that matches human perception. So BT.709 is a much better choice than YCgCo in this specific situation.

8th June 2014, 16:21	#53 \| Link
madshi Registered Developer Join Date: Sep 2006 Posts: 9,140	Lossless conversion between RGB <-> YCbCr is useless for me. I'm calculating in 32bit+ float and storing results in 16bit+ int/float, and final output is only 8bit. So there's gigantic headroom, no need for lossless conversion. It's MUCH more important to use a conversion that matches human perception. So BT.709 is a much better choice than YCgCo in this specific situation.