YCoCg [[0,1];[-0.5,0.5];[-0.5,0.5]] to RGB [[0,255];[0,255];[0,255]] and vice-versa

luquinhas0021 · 28th January 2019, 17:31

How can I get lossless conversion between this two color spaces with this parameters?

huhn · 28th January 2019, 17:46

if you read the wiki https://en.wikipedia.org/wiki/YCoCg

you need to more bit deep to store YCoCg/-R lossless to store 8 bit rgb you need 9 bit.

luquinhas0021 · 28th January 2019, 18:13

Quote:

Originally Posted by huhn

if you read the wiki https://en.wikipedia.org/wiki/YCoCg

you need more bit depth to store YCoCg/-R lossless: to store 8 bit rgb you need 9 bit.

Yes, I've seen that, althought the number of bits, for the application I want, doesn't matter.

huhn · 28th January 2019, 22:56

so increase the bitdeep and apply the shown formula shown?

28th January 2019, 17:31	#1 \| Link
luquinhas0021 The image enthusyast Join Date: Mar 2015 Location: Brazil Posts: 270	YCoCg [[0,1];[-0.5,0.5];[-0.5,0.5]] to RGB [[0,255];[0,255];[0,255]] and vice-versa How can I get lossless conversion between this two color spaces with this parameters? __________________ Searching for great solutions Last edited by luquinhas0021; 29th January 2019 at 15:04.

28th January 2019, 17:46	#2 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,926	if you read the wiki https://en.wikipedia.org/wiki/YCoCg you need to more bit deep to store YCoCg/-R lossless to store 8 bit rgb you need 9 bit.

28th January 2019, 22:56	#4 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,926	so increase the bitdeep and apply the shown formula shown?