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Old 28th January 2019, 17:31   #1  |  Link
luquinhas0021
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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?
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Last edited by luquinhas0021; 29th January 2019 at 15:04.
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Old 28th January 2019, 17:46   #2  |  Link
huhn
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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.
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Old 28th January 2019, 18:13   #3  |  Link
luquinhas0021
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Quote:
Originally Posted by huhn View Post
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.
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Last edited by luquinhas0021; 29th January 2019 at 15:04.
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Old 28th January 2019, 22:56   #4  |  Link
huhn
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so increase the bitdeep and apply the shown formula shown?
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