Well, yes, OK. Obviously you do what works for you and it all depends on what you are trying to achieve but I tend to regard blend modes as more useful for simple operations like colour saturation where I may want to tweak the effect.
Velvia and Vibrance perform quite specific effects and already have inbuilt adaptive processing to work selectively on the image according to brightness and saturation of the pixels so there shouldn't in general to use blending on top of these. But if you have an image and Velvia plus blend mode works for you then go for it. Rgds, Rob. -----Original Message----- From: Paul Glad Mihai [mailto:[email protected]] Sent: 05 December 2013 11:25 To: Darktable-users Subject: Re: [Darktable-users] Lab curves vs. velvia vs. vibrance Hi Victor, > Personally I like to use the velvia tool with a blending mode which > includes only high values in the grey channel and where saturation is > not to high. > This way its brings beautiful colors where I usually want without too > much overall saturation. Now this is a great tip. I wouldn't have thought of using the grey channel, because I am not too familiar with each channel. I will try it out. This is the sort of tip I was looking for. Thanks! > IMHO the question is : what do expect from the velvia module ? Setting > the velvia module should be the easy part > > > 2013/12/4 Rob Z. Smith <[email protected]> > >> Hi Glad, >> >> It doesn't really need any tricks or blending modes on Velvia, just >> apply more than once if you want an even stronger effect or a mask if >> you want only a selected area processed. Or add an instance of >> vibrance rather than two velvias. >> >> Not all things have to be difficult >> >> Rgds, >> Rob. >> >> -----Original Message----- >> From: Paul Glad Mihai [mailto:[email protected]] >> Sent: 04 December 2013 14:03 >> To: Victor L >> Cc: Darktable-users >> Subject: Re: [Darktable-users] Lab curves vs. velvia vs. vibrance >> >> Hi Victor, >> >> Thanks for the great tip. I will look into it. I am familiar with >> multiple instances, but I thought someone could point me some specific >> tricks, i.e. >> a first instance of velvia that is only applied to a certain blending >> mode, and another instance that is applied to another blending mode. >> >> Can anybody help? >> >> Regards, >> Glad >> >> On 04.12.2013 12:00, Victor L wrote: >>> Hello, >>> >>> You should read the blog articles about masks >>> <http://www.darktable.org/2013/04/masks/> and multi-instances >>> <http://www.darktable.org/2013/02/multi-instances/>. Remember some >>> of the masks features are only available in the nearly released >>> version >> (1.4). >>> >>> Bye >>> >>> >>> 2013/12/4 Paul Glad Mihai <[email protected] <mailto:[email protected]>> >>> >>> Hi there, >>> >>> In order to get nicer contrasts I started playing around with the Lab >>> curves (Re: Marugulis' - Photoshop Lab Color, i.e. make the a and b >>> slopes steeper to pull colors apart). I noticed this works great >>> but >> not >>> on all photos. Some just punch the blues, or greens or yellows and it >>> doesn't look that great. So I reverted to velvia. >>> >>> Now I heard somewhere that one can apply multiple instances of velvia >>> and use blending modes to achieve very nice effects. Can someone >> give me >>> some tips on using these? I would really appreciate that. >>> >>> Further, can these tricks also be used on the vibrance? >>> >>> Thanks for your time. >>> >>> Glad >>> >>> P.S. Is there no way to donate towards this project? >>> -- >>> Sent from my iTooth. Get your own teeth to send Emails under >>> www.itooth.com <http://www.itooth.com> >>> >>> -- Sent from my iTooth. Get your own teeth to send Emails under www.itooth.com ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. 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