cj4now
Suspended / Banned
- Messages
- 62
- Edit My Images
- Yes
I'm trying to convert some pictures into B&W utilising a chart of R,G,B settings on their tutorial page that have been taken from Petteri Sulonen's site. It's more or less a starting point to emulate B&W film (AGFAPAN 400, Kodak Tmax 100 e.g). This is a practice exercise for me and I felt the list would be a really good starting point to see what I like and what works well for different types of image etc.
My problem is the settings on the site are given as RGB, 27, 36, 37 for example. However the sliders in GIMP don't appear to work in this way, they work in a range of -2.000 to +2.000 which doesn't make sense to me. I open up the channel mixer like this; Colours > Components > Channel Mixer. Am I missing something really obvious here? Are the settings in this list given as percentages, and if so is there an easy way to utilise them as I can't seem to work out what I'm doing?
The 0-255 scale makes sense to me and I can sort of grasp how it works, but this 2.000 thing is not very intuitive imo. I'm getting frustrated as I really want to find a good solid base to start experimenting in B&W.
Is there anyway I can change the slider settings to work in a more sensible (to me) 0-255 scale, or percentage scale? Or have I just wasted my time copying all the different 'film settings' into my notebook?
I hope this makes sense.
Any advice would be greatly appreciated (purchase Photoshop excepted lol).
My problem is the settings on the site are given as RGB, 27, 36, 37 for example. However the sliders in GIMP don't appear to work in this way, they work in a range of -2.000 to +2.000 which doesn't make sense to me. I open up the channel mixer like this; Colours > Components > Channel Mixer. Am I missing something really obvious here? Are the settings in this list given as percentages, and if so is there an easy way to utilise them as I can't seem to work out what I'm doing?
The 0-255 scale makes sense to me and I can sort of grasp how it works, but this 2.000 thing is not very intuitive imo. I'm getting frustrated as I really want to find a good solid base to start experimenting in B&W.
Is there anyway I can change the slider settings to work in a more sensible (to me) 0-255 scale, or percentage scale? Or have I just wasted my time copying all the different 'film settings' into my notebook?
I hope this makes sense.
Any advice would be greatly appreciated (purchase Photoshop excepted lol).