ah, because he is maybe on the wrong track and needs to clarify his thinking and requirements
why not ask him questions? he started the thread, he should be more specific
why are you questioning me?
why ask him why so much?
It would be far better if you'd just give him some pointers, yea?
Perhaps sharpening is "required" after a scan but NEVER if the image is received fresh from a DSLR. Sharpening must always be last, and never applied to a mastered image that will be archived.
I've tried that technique before but I thought it only worked with colour.
Is it also applicable to b&w sharpening?
So why does a scanned negative need to be sharpened? Does the scanning process introduce softening of the focus? Is there a low-pass filter, or anti-moire filter being used by the scanner? Is capture of an image via scanning akin to a DSLR sensor capturing an image? I know when DSLR captured images need to be scanned but I thought analog to digital via scan was a different kettle of fish.
Please enlighten me someone.
FWIW I don't sharpen until the very end. I don't sharpen during the scan nor immediately after. Sharpening can create artifacts that get amplified when sizing, colour correcting and adjusting contrast in additionally it can impede noise reduction.
I've yet to see a better tool to sharpen scans than
Focus Magic. Look it up.
Ray,
Most experts, if not all, tell us that sharpening is required after image capture. That includes scanning from film. Normally this is one of the first steps in post processing. A final sharpening at output sized is also recommended.
There are a lot of methods for sharpening at both stages. Do some research on the web for details and opinions. It's a complex subject that needs consideration based on ones personal tastes, experience and targeted output.
Don Bryant
That's not the case if one is shooting RAW.
Don Bryant
says who?
why?
There are ways to sharpen on an adjustment layer which make it nondestructive and there are two main reasons to sharpen 1) to 'recapture' details that are softened in the scanning process or to pull detail out whether it is due to scanning or other issues and 2) to optimize the image for final output.
... a software program called PhotoKit Sharpener. It is a very powerful tool and does a much better job of sharpening than I can do on my own. Sandy King.
g'day all
Sandy, can you explain how and why a third party program is better than PS sharpening?
can you post examples?
Ray
perhaps you misunderstand, the 3rd party program is a plug-in for PS
there is nothing it does you can't but then the same can be said of many software systems (like the automated inversion of negatives for your in scanner software). If you're across layer sharpening then you'll be understanding what it does and can do it yourself. Its just time consuming to do it by hand.
yeh, thnx but how is it any better than PS's own unsharp mask?
isn't a "plug-in for PS" a program not necessarily from Adobe that runs with-in PS?
can you post exapmles?
yeh, thnx but how is it any better than PS's own unsharp mask?
isn't a "plug-in for PS" a program not necessarily from Adobe that runs with-in PS?
can you post exapmles?
thnx, though i don't think it's a question of my manners, it's maybe a question of more unsubstantiated claims posted without any explanation, example or proof
thnx, though i don't think it's a question of my manners, it's maybe a question of more unsubstantiated claims posted without any explanation, example or proof
Checkout the PixelGenius website for more details:
http://www.pixelgenius.com/sharpener/
One other thing that I'll mention is that if you visit the site you will notice that PKS is endorsed by Nash Editions. The main guru at Nash Editions (whose name escapes me now) has a very nice workflow outline for digital editing posted on his web site.
Ray,
It's a little difficult to provide examples of sharpening (good or bad) through the web and even at home on ones monitor. To accurately judge the effects of sharpening a print needs to made. Accurate assessment of sharpening can't be judged merely on screen.
Jeff Shewe, who is one of the gurus that worked with Bruce Fraiser and others to create PhotoKit Sharpener, suggests that viewing the sharpened image on screen at a 25% magnification will give the viewer some idea if the image is sharpened properly (including whether it is over sharpened).
Generally speaking PhotoKit Sharpener uses PS actions to build edge masks and detail masks to be used with the Smart Sharpening filter and possibly the Unsharp mask filter. If you are familiar with the latest versions of ACR you can actually see how the Detail and Edge sharpening masks work.
The late Bruce Fraiser outlined a three pass sharpening method online and in his book "Real World Sharpening" The basic steps are capture sharpening, creative sharpening, and output sharpening. He even provides the steps needed for one to create the Detail and Edge sharpening masks which are available online.
As I mentioned to you before here on HybridPhoto, sharpening is a complex process and simply making a global sharpening adjustment using the unsharp mask really doesn't produce the best sharpening results.
You can download a trial version of PhotoKit Sharpener and play with it yourself to get a feel for how it works. Checkout the PixelGenius website for more details:
http://www.pixelgenius.com/sharpener/
One other thing that I'll mention is that if you visit the site you will notice that PKS is endorsed by Nash Editions. The main guru at Nash Editions (whose name escapes me now) has a very nice workflow outline for digital editing posted on his web site. It's worth taking a look at for some valuable tips about the proper steps for digital editing.
Don Bryant
Really good post. Great information including the PDF pellicle linked to.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?