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Photo Restoration Repairing damaged photos

Sharpening to the max!

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Old 07-25-2005, 09:14 AM
Craig Walters's Avatar
Craig Walters Craig Walters is offline
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ok, new day and my head isnt quite so full of mush, so let's look at this again.

ok, i've no idea what program or plugin might do this. sounds feasible, though. have you tried this in some way on real images at all? i mean, manually. and, whereas i dont have a decent version of photoshop, would any of their actions or scripts or filter factory allow you to make something like this? or maybe filter meister, if you can code a bit?

it sounds like an interesting project to me and i'd be happy to test the beta plugin

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Old 08-10-2005, 10:52 PM
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PatrickB PatrickB is offline
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Hey all,

I just laid back, watchin a game, havin a bud when I remembered writing an email to Adobe about the sharpening idea. I thought about what to write and suddenly it popped into my mind!

I tried this technique with a simple gradient and the result was awesome, haven't tried on a real picture yet, but if someone wants to have a go before I do.... So that's the technique:

- Create a copy of the background layer
- Go to Image/Adjustment/Brightness & Contrast (just for convenience) and increase the contrast by a few numbers until the edges look real sharp, don't care about anything else. Adding contrast will almost always accentuate the edges but heavily ruin the image by now
- Go back to the background layer and select luminosity by pressing ctrl-alt-~
- Go back to the new layer and add a mask with that selection
- Image/Adjustments/Curves and drag the white anchor to the bottom, create a new anchor in the middle and drag it right up to the top to reveal only midtones
- Set layer mode to Soft Light
- Magic!

This is basically a mix of the Hi-Pass Sharpening and the idea of contrast adding more sharpness. I gave it a quick try on a photo but the results were less than worse, but maybe with a little tweaking here and there...

Applause or laughter from anyone?


Last edited by PatrickB; 08-10-2005 at 10:58 PM.
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Old 08-19-2005, 09:52 AM
john_opitz john_opitz is offline
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Different sharpening techniques

Also try a reverse luminosity sharpen....... In rgb, instead of just sharpening the composite channel as a whole on a luminosity layer. Do a Ctrl/Command + Alt/Opt + "~"... then do a Shift + Ctrl/Command + "I" ......Hide the selection edges, if that bothers you. Then use the unsharp mask. When you use the unsharp mask, use conventional sharpening or the "HaLo" (High Radius, Low Amount) method. This reverse luminosity sharpen, sharpens "detail". Something, like a black channel sharpen in cmyk.

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Old 08-19-2005, 10:10 AM
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Duv Duv is offline
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I'll put this out again. If you're looking for sophisticated sharpening capabilities..and more, check out Sharpening Tool Kit and Tutorial.


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Old 08-19-2005, 03:05 PM
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Craig Walters Craig Walters is offline
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besides what duv said, and since posting here last, i found a filter plugin you might be interested in. it's called '7 band sharpening filter'. i've tried it a few times. dont know if it's doing what you suggested, but it does give a bit more control over how you sharpen images.

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