Presharpen Workflow?

Don B

• 2009年07月01日 17:53

Hi, I'm new to C1-4 and I can't find any references as to how to use the pre-sharpen presets. Can anyone please point to a tutorial or tell me how you use them?
Thanks,
Don

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  Paul Steunebrink

  • 2009年07月03日 06:14

  Either choose one of the default Sharpening presets or create one (or more) of your own.

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  Don B

  • 2009年07月03日 08:17

  Thanks Paul for replying.
  I believe however there is a procedure for presharpening, rather than just applying one as a final setting. I'm pretty sure there is a procedure of applying pre-sharpening at different stages of the editing process, followed by final sharpening. There would be no other reason for C1 to have pre-sharpening presets.
  Cheers,
  Don

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  Paul Steunebrink

  • 2009年07月03日 09:42

  Hi Don,
  I am afraid I do not understand your pre-sharpening theory and its relation to Capture One. I think I understand the concept of pre-sharpening as compensation for the demosaicing process, but you could use CO4 to do that (by applying low levels of sharpening).

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  Christopher

  • 2009年07月10日 16:22

  The ideal pre-sharpening is applied during the interpolation of the raw samples. That way a larger radius/more sharpening can be applied to the red and blue samples, and a little less to the green. After color correction, exposure adjustment, etc. per channel sharpening is less effective.
  
  I don't know how Capture One handles its demosaicing process, but the lack of artifacts, and the level of detail extracted says to me that they're doing a pretty good job.
  
  Later pre-sharpening, which is still used to accentuate details averaged out by the camera's Bayer grid, or antialiasing filter, can be applied after other adjustments are made. This is what the Capture One preset is for. It applies less sharpening than one would use for an image destined for print or display.
  
  The idea is to have Capture One output a lossless file (TIFF) with the pre-sharpening preset, if you're going to be doing future processing or retouching in another program. Or if you'll be generating different sized images for different media which need individualized sharpening settings.

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  Vesa_Ekholm

  • 2009年07月10日 18:01

  This maybe a bit offtopic, but anyway...
  
  I have sharpening disabled in C1 while developing an image...then, for example for web use, I open it in PS CS4, maybe apply some adjustments, resize it (usually to 800 x) and only then I sharpen the image...
  
  Am I doing something wrong...should I apply some sharpening allready when developing images out of C1 ?

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  Christopher

  • 2009年07月10日 19:16

  There's no "right" way to apply sharpening. Much of it depends on display target, source material, and even personal taste.
  
  A little pre-sharpening can be applied before other transformations because the idea is not to compliment the display or media, but to just try to undo the effects of the anti-alias and/or Bayer filters.
  
  Though if you are resizing down that much, you'd loose any sharpening applied in Capture One anyway.

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  thowi

  • 2009年07月11日 10:45

  [quote="Vesa_Ekholm" wrote:
  Am I doing something wrong...

  no, that's okay. In the process chain sharpening is the last step. So it's indifferent if you do it in C1 or later on in Photoshop.
  I prefer to store my processed files without sharpening as I preserve all options herewith.
  Regarding resizing it's always good to have a copy without sharpening. Sometimes it's better to do a soft presharpening before resizing, sometimes it's better to do resizing without prior presharpening - depends.

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  photomy2

  • 2009年10月20日 03:19

  Well, pre-sharpening can occur at the raw conversion stage so any sharpening by C1 to a raw file is by definition pre-sharpening. It could also occur as the first step right after raw conversion in PS or Lightroom or other editing program. Pre-sharpening means sharpening early on before any major PS editing. In the case of C1 it may be simultaneous to several image adjustments that C1 does as part of raw conversion. I do not think you can actually dictate what order C1 does the workflow.
  
  Next is target sharpening to taste by brush and mask done in PS or Lightroom type program
  
  Then, a final sharpening may be done in PS or other after the file is resized and compressed (if JPEG) for the final image use. This maybe for print or for Web viewing.

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