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Sharpening images
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Wow, masks and selective sharpening, I’d be afraid to attempt it, much like nfl-fan! :lol:
I need to experiment more with sharpening I guess!
interesting stuffok
heres a simplified way of doing the sharpening i am talking about
1. duplicate the image layer
2. go to the channels palette and [CTRL] (windows) [apple] (mac) click the thumbnail of the RGB layer of the image
3. go back to the layers palette and select the duplicate layer
4. select zoom and zoom to 100%.
5. go to the view menu, and uncheck the extras option, this hides the selection (marching ants) but its still selected
6. go to filter, shaprpen, unsharpmask.
7. set the settings to 500%, i use a radious of 1.7 but thats based on the resolution of my camera, and threshold 0
8. apply
9. this may look over sharpened on screen, but remember your sharpening for print, not screen.
10. if you find its too much, just drop the opacity of the duplicate layer.the really important thing about this system, is its the same for everything, ie every image.
and so it can be automated, and just a bunch of buttons to change the opacity based on what you want. i have a bunch of actions to do this with buttons for changing it
and remember, sharpening is about fixing the fact your camera does not create sharp images,
and if you think they do, just try taking a raw&jpg image, ie both at the same time.
and open them both in photoshop without any form of sharpening of either (make sure its turned off in your raw processor, and have a look at the differencehope this helps. if anyone needs more help give me a shout
Here’s something else I came across that might be of use. It’s a download of scripts for three-pass sharpening. By the look of it, it isn’t for the feint hearted.
http://www.thelightsrightstudio.com/TLRProfessionalSharpeningToolkit.htm
Alan
ok
i made a set of actions to do my sharpening method
first one sets everything up
the others change the opacity of it
http://www.make-it-known.com/photos/sharpening.atn
I dont think you can apply a general rule for this as every image will require different levels of processing ?
I use lightroom tools and unsharpen mask in CS2 and only rarely sharpen edges, it is very easy to over do it so practice and test your settings with your prints in my opinion.i sharpen all the images the same way, i just drop the ammount using the opacity
Came across this tutorial on sharpening that I’ve been using for quite some time now. It enables you to selectively sharpen certain areas of an image while leaving areas such as soft clouds etc untouched.
Simple use the paint tools to paint over areas you do not want to sharpen.
Hope you find this usefull. Works in Photoshop all versions using layers.I find the amount of sharpening depends on the size of image you are working with.
http://www.sitepoint.com/article/sharpening-photoshop-cs2
Just came across this (new?) article on using Unsharp Mask, which is worth a read – Unsharp Mask – How do you actually use that thing?
gotta say I never thought about using masks for sharpening.one thing i I find is that sharpening can birng in some noise.or at least hightlight it.would the selective sharpening help here or am I just usign incorrect settings ? (cs3)
What Steve is doing there sounds similar to Guy Gowan’s method, using duplicate channels and masks. I use this for portraits where there are skin tones involved and basically use the red channel as a mask for the skin. Seems to work well for that, although I haven’t quite figured it out for landscapes and street scenes yet. At the last seminar he did out at Dublin Airport he did go into some detail on the subject but my brain went into shutdown mode half way through… :wink:
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