exposure works in scene-referred linear camera rgb (mimicking more photons coming in), levels works in Lab (perceptually linear) and also corrects color contrast after adjusting luminance.
you can check the overall execution order of your modules in the right panel, it goes bottom to top (and the histogram is at the end). by unselecting the group button (press it again) you'll get all modules in one big list. between `input color profile' and `output color profile' everything is in Lab. -jo On Wed, Nov 28, 2012 at 4:44 AM, Ivan Tarozzi <[email protected]> wrote: > I admit I'm newbie in post-production, > and I don't understand how levels plugin works. > After the new release I restarted to read darktable manual from the > begin, and now I have several doubt :) > > This concerned exposure and levels plugins > > I hope to explain me with a use case: > I have an underexposed image, with histogram finishing in the middle of > the diagram. > > Until now, my first step was use exposure plugin to squash the histogram > to the right (of course introducing noise...). > > Reading the manual I tried level plugin to reach the same result. So I > move the right line to the end of histogram, and again my histogram > moves to right. > > But, using levels I obtain a better balanced image. So my question is: > What differences about the 2 ways? How levels plugin change general > exposure in contrast of exposure plugin? > > Thanks a lot! > > Ivan > > > ------------------------------------------------------------------------------ > Monitor your physical, virtual and cloud infrastructure from a single > web console. Get in-depth insight into apps, servers, databases, vmware, > SAP, cloud infrastructure, etc. Download 30-day Free Trial. > Pricing starts from $795 for 25 servers or applications! > http://p.sf.net/sfu/zoho_dev2dev_nov > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: DESIGN Expert tips on starting your parallel project right. http://goparallel.sourceforge.net _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
