Sharpen or USM


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Pokka

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#1
Hi all

When will you decide to use USM or Sharpen tool? USM for portraiture and Sharpen for Cityscape?

What normally are the values you enter for USM? The threshold, value and radius.

How do you know you've oversharpened a picture?
 

Zerstorer

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#2
Pokka said:
When will you decide to use USM or Sharpen tool? USM for portraiture and Sharpen for Cityscape?
USM can do everything that "Sharpen" can and more.

What normally are the values you enter for USM? The threshold, value and radius.
Depends on the size of the image, sharpness of the image and the size and intended use of your output. You should see for yourself the effects, every image is different.

How do you know you've oversharpened a picture?
When you start seeing halos or outlines over details or simply when it no longer looks natural.
 

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#3
Zerstorer said:
Depends on the size of the image, sharpness of the image and the size and intended use of your output. You should see for yourself the effects, every image is different.
QUOTE]
Does this mean sharpening should be done only after resizing/croping?:dunno:
 

Hobbes234

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#4
Fuji Olykon said:
Zerstorer said:
Depends on the size of the image, sharpness of the image and the size and intended use of your output. You should see for yourself the effects, every image is different.
QUOTE]
Does this mean sharpening should be done only after resizing/croping?:dunno:
does not matter which u do 1st..
i usually do cropping last.
 

#5
Fuji Olykon said:
Zerstorer said:
Depends on the size of the image, sharpness of the image and the size and intended use of your output. You should see for yourself the effects, every image is different.
Does this mean sharpening should be done only after resizing/croping?:dunno:
Sharpening should be left to the last step.

If you're printing large prints, more sharpening is needed. Oversharpening occurs if you see a big difference before and after sharpening
 

Zerstorer

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#6
Fuji Olykon said:
Does this mean sharpening should be done only after resizing/croping?:dunno:
Sharpening can also be performed before any manipulation to pull out details before you work on the image but final output sharpening should always be performed after any resizing.

With cropping it is of less relevance.
 

Hobbes234

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#7
+evenstar said:
Fuji Olykon said:
Zerstorer said:
Depends on the size of the image, sharpness of the image and the size and intended use of your output. You should see for yourself the effects, every image is different.


Sharpening should be left to the last step.
Hmm.. could you please explain y?

Thanks
 

Zerstorer

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#8
Hobbes234 said:
Hmm.. could you please explain y?

Thanks
Who and what are you asking about? The quotes are all messed up.:)
 

Zerstorer

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#10
If its regarding to sharpening for the last step, then its because most forms of resizing involve resampling and filtering which causes blurring. Sharpening after resizing is always desired to restore the details.
 

Hobbes234

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#11
Zerstorer said:
If its regarding to sharpening for the last step, then its because most forms of resizing involve resampling and filtering which causes blurring. Sharpening after resizing is always desired to restore the details.
thanks...
:)
 

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