Does anyone understand the mechanics behind these 'self feathering' claims? I had a quick look at the referenced article and it seemed to me to be essentially just creating a bunch of luminosity ranges somewhat analogous to the zone iop and I didn't see any obvious basis for overlap between the 'zones' which might introduce such feathering.
If that is the case any feathering is going to be a natural effect of using luminosity based selections which (along with all parametric selections) tend to be much subtler than drawn maks, and if this is right the dt parametric masks are I guess likely to be a better bet than these luminosity layers as they allow gradients rather than just discrete ranges. But I might have it all wrong .... Rgds, Rob. -----Original Message----- From: Mueen Nawaz [mailto:[email protected]] Sent: 06 January 2015 07:42 To: [email protected] Subject: [Darktable-users] Luminosity Masks in Darktable? Hi, Has anyone considered adding luminosity masks to Darktable? For details of what I mean, see this tutorial for Gimp: http://blog.patdavid.net/2013/11/getting-around-in-gimp-luminosity-masks.html I played with it briefly in Gimp and it's quite impressive. In a sense these masks are very "self-feathering" and halos are quite rare. Also, the effects on the image are not very sensitive to the modifications (e.g. one often has to modify the curve dramatically on the mid tones before the image looks unnatural). Just as we have parametric and drawn mask, I think it'd be great if we could add the option to simply select any of the 7 masks he has (LLL, LL, L, M, D, DD, DDD). One can then combine with parametric or drawn to refine further. I know we can select, say, midtones using parametric masks, but I believe the "gradient" from selected to unselected is linear in Darktable, and can still easily lead to awkward looking effects. I think these masks allow for much smoother modifications to the image. Thanks, Mueen ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users This email is confidential and is intended for the addressee only. If you are not the addressee, please delete the email and do not use it in any way. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. NHBC reserves the right to monitor all email communications. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. NHBC, the National House-Building Council, is limited by guarantee in England, No 320784. Registered address: NHBC House, Davy Avenue, Knowlhill, Milton Keynes MK5 8FP. NHBC is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and Prudential Regulation Authority. NHBC Building Control Services Ltd, registered by guarantee in England with Company No. 01952969. Registered address: NHBC House, Davy Avenue, Knowlhill, Milton Keynes MK5 8FP. NHBC Services Ltd registered by guarantee in England, No 03067703. Registered address: NHBC House, Davy Avenue, Knowlhill, Milton Keynes MK5 8FP. If you make a claim under a Buildmark policy your personal details will be stored and processed in accordance with the Data Protection Act. Your personal details may be passed to others involved with your claim such as the original builder, or a consultant or remedial works contractor that we may employ in connection with your claim(s) and matter ancillary to your claim(s). Other than disclosure provided for in this statement, we will not pass any data about you to any other party without your permission unless we are required to do so by law. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
