Re: [Darktable-users] Gorman-Holbert Conversion Method

2013-09-17 Thread Rob Z. Smith
having to convert back and forth from LAB to RGB, or so it seems to me. Rgds, Rob. -Original Message- From: Rodrigo Amestica [mailto:ramest...@gmail.com] Sent: 17 September 2013 12:30 To: darktable-users@lists.sourceforge.net Subject: [Darktable-users] Gorman-Holbert Conversion Method Hi

[Darktable-users] Gorman-Holbert Conversion Method

2013-09-17 Thread Rodrigo Amestica
Hi, for some days I have been trying to duplicate that black and white conversion method in darktable. Internet resources are plenty on descriptions based on photoshop. I think that a procedure shown below does the work: 1. completely desaturate using a module like color correction 2. create a du