Google| Subject | Re: Is RGB to Lab lossy? - was(Re: Lenses and sharpening) |
| From | nospam |
| Date | 10/07/2014 23:26 (10/07/2014 17:26) |
| Message-ID | <071020141726296552%nospam@nospam.invalid> |
| Client | |
| Newsgroups | rec.photo.digital |
| Follows | PeterN |
| Followups | Eric Stevens (1h & 42m) PeterN (3h & 25m) |
In article <m0sskh02g2i@news1.newsguy.com>, PeterN <peter@verizon.net> wrote:
nope. it's less effort and with higher quality results in rgb since you don't need to make two lossy conversions. it's also quicker.PeterNEric Stevensnospam
For some reason the conversion of RGB -->Lab has been particularly singled out for criticism in this respect.
it's a bad workflow because what can be done with an rgb->lab-rgb conversion can be done *without* the conversion and with better results.
Yes it can be done in RGB, but with a lot more effort.
Take a simple example stock photo and change the color in RGB, and then make the same color change in LAB.that's meaningless. change the colour to what?
Or, simply increase color saturation n RGB and make the same change in LAB.there is absolutely *no* need to go to lab to change saturation.
All yo do is sout questionable theory. Show some real life proof.there's nothing questionable about it.
read something *other* than the crap marguilis spouts and learn something new for once.
09/13/2014-
