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contrast screened monochrome vs. screentoning and show effects on screening (never try to descreen screentoning)
- rotating/cropping - dust removal via patch tool
using temporary adjustment layers to make dust more visible
- color adjustment topics
whitepoint, blackpoint, gamma, color casts
how to do this in Vuescan
how to save 16-bit images and do it in Photoshop
localized contrast adjustments via levels (eg. post #64977)
- final steps: downscaling and conversion to PNG; tools to batch this - bleed-through in magazines; reducing with levels - textured paper; reducing with levels and greycstoration
All of my stuff will be Photoshop-based. If anyone wants to write material using other tools, that's fine, but I think the main line of tutorials should stick to PS unless other tools are significantly better, so we're not pointing people to a bunch of unrelated software without reason.
I don't want to have a lot of text explaining technical details that are already explained well elsewhere; let's just link to external articles for that. I just want to show enough information to explain what we're talking about, and to focus on the how and why (or why not).
I do want to back everything up with example images; it's the quickest way to see what's going on. Let's keep the examples reasonably rating:s.
There are a lot of editing topics--enough to scare most people off. Basic topics should be separated to give people enough of an introduction to get started.
Any competently-written material on this (tutorials, videos, etc.) would be useful to link to. There's endless quantities of Photoshop stuff out there, but I havn't found all that much about stuff relevant to us.
If anyone out there is competant at color adjustment, I could use some help on that topic in particular; I havn't had much practice with that. Along with descreening, it's probably the most important and most challenging part of scanning.
petopeto
Tutorials, examples
Other scanning and editing topics to be covered:
- basic scanning
- don't use built-in descreening/moire filter
- always scan at 600 DPI unless you know what you're doing
- for speed, save as TIFF at this stage, not PNG
- link to color adjustment
- basic GREYCstoration use (via PS filter)- basic settings
- examples of when to change settings; FM screening needs much less processing (link to printing processes)
- intermediate GREYCstoration- multi-pass
- masked multi-layer
- different print types- normal AM screening (both color and monochrome)
- FM screening and its effects on filtering
- contrast screened monochrome vs. screentoning and show effects on screening (never try to descreen screentoning)
- rotating/cropping- dust removal via patch tool
- using temporary adjustment layers to make dust more visible
- color adjustment topics- whitepoint, blackpoint, gamma, color casts
- how to do this in Vuescan
- how to save 16-bit images and do it in Photoshop
- localized contrast adjustments via levels (eg. post #64977)
- final steps: downscaling and conversion to PNG; tools to batch this- bleed-through in magazines; reducing with levels
- textured paper; reducing with levels and greycstoration
All of my stuff will be Photoshop-based. If anyone wants to write material using other tools, that's fine, but I think the main line of tutorials should stick to PS unless other tools are significantly better, so we're not pointing people to a bunch of unrelated software without reason.
I don't want to have a lot of text explaining technical details that are already explained well elsewhere; let's just link to external articles for that. I just want to show enough information to explain what we're talking about, and to focus on the how and why (or why not).
I do want to back everything up with example images; it's the quickest way to see what's going on. Let's keep the examples reasonably rating:s.
There are a lot of editing topics--enough to scare most people off. Basic topics should be separated to give people enough of an introduction to get started.
Any competently-written material on this (tutorials, videos, etc.) would be useful to link to. There's endless quantities of Photoshop stuff out there, but I havn't found all that much about stuff relevant to us.
If anyone out there is competant at color adjustment, I could use some help on that topic in particular; I havn't had much practice with that. Along with descreening, it's probably the most important and most challenging part of scanning.