On Tue, Jun 5, 2018 at 1:57 PM, David Vincent-Jones <[email protected]> wrote:
> I use parametric masking ... a lot! .... It probably is a part of my > processing on at least 90% of my images but, for me, there is still a > problem in understanding how to correctly use the 'output' bar to gain full > functionality of the module. > > I have watched a number of on-line videos and read the blogs and with one > exception the top output bar appears to be totally ignored.. I do remember > when this module was new that there was a blog showing the use of both bars > (I am not sure that I really understood it even then) but the question that > I have today is if this output bar is truly useful then maybe we need > some further direction from somebody that is fully familiar with its > capabilities and actually uses it. > I used a picture that had grass. I opened the monochrome module and created a parametric mask, using the input sliders, to select the grass and desaturate it. Then I used the output sliders on the luminosity channel to change how the desaturation was applied, like a blend if. I also tried it with exposure. I selected something with the eyedropper so that I got the indicator in the channels. I created a parametric mask to select something that was indicated, then changed the exposure. The ouput slider indicator moved as I changed the exposure. So, it appears to me that the input sliders select what is given to the module to be changed and the output sliders select how the result of the change is applied. Up until you asked the question I'd never played with them, but this opens up all sorts of new possibilities. Thanks. Bill > David > > ____________________________________________________________________________ > darktable user mailing list to unsubscribe send a mail to > [email protected] > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
