Subject | Re: Lenses and sharpening |
From | nospam |
Date | 09/19/2014 18:51 (09/19/2014 12:51) |
Message-ID | <190920141251020778%nospam@nospam.invalid> |
Client | |
Newsgroups | rec.photo.digital |
Follows | PeterN |
Followups | PeterN (6h & 4m) > nospam PeterN (1d, 3h & 6m) > nospam |
i do, as do most people, but that's not the point.PeterNEric StevensnospamPeterNSavageduck
I have found that using high pass on the luminiscence layer in LAB tends to minimize halos.
Actually it is a good idea to do any/all/most sharpening on a luminosity layer, LAB or not.
not always, since the conversion to lab and back is not lossless.
Not strictly correct:
https://www.ledet.com/margulis/ACT_postings/ColorCorrection/ACT-LAB-damage.h tm
">I have always thought that moving from either CMYK or RGB to LabnospamEric Stevens
and back was a damage free process, that is, you would end up with the same color co-ordinates when you arrived back from Lab mode.
"RGB>LAB>RGB is damage free, but CMYK>LAB>CMYK is not. The damage isn't all that great, so in many images it pays to come out of CMYK so as to take advantage of LAB's strengths; sharpening, however, is not one of these cases. .... Dan Margulis"
But you sould know that nosense knows much more than Dan Margulies.