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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 18 Oct 2008 (Saturday) 08:53
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best way to sharpen images in Photoshop CS2

 
shutterbugcrazy
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Oct 18, 2008 08:53 |  #1

I see alot of unsharp images on these forums and some people have been IM'ing me asking what I do to sharpen mine. Here's an easy technique I use on every picture to make them pin sharp and it's done like this to prevent color noise and halos.


  1. open color image
  2. make sure you have the channels palette shown in the window menu at the bottom of PS
  3. under image menu, under mode choose lab color
  4. in the channels palette it changes from color tabs to "lab, lightness, a, b" click on the lightness tab
  5. in filter drop down menu select unsharp mask filter and use these settings: amount 85%, radius 1 pixel, threshold 4 levels
  6. if you need a little more sharpening select unsharp mask again and use the same settings one more time or bring down the amount slider to your liking.
  7. go back to image menu, mode and choose RGB
now you just only sharpened the lightness in the photo while not tweeking the colors therefore avoiding noise and halos. If you have too much noise (color or ISO) before you sharpen this step will make them worse, but if you start with an image that isn't noisy then these steps will greatly improve your image.

https://www.facebook.c​om …otography/36095​6144097830 (external link)

  
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John ­ E
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Oct 18, 2008 08:54 |  #2

Thanks for the advice!


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Oct 18, 2008 10:16 |  #3

More: Post Processing #3 - Sharpening & Saving


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Microcosm
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Oct 18, 2008 10:29 as a reply to  @ John E's post |  #4

Interesting! I'll try this, thank you.


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shutterbugcrazy
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Oct 18, 2008 10:54 |  #5

I looked at the link and that way seems overdone to me.

Here is the original pre processed shot from that link and what that person did to sharpen it


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shutterbugcrazy
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Oct 18, 2008 10:56 as a reply to  @ shutterbugcrazy's post |  #6

This one on top is again the original and the one below it is one I did using the labcolor instructions I posted above


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shutterbugcrazy
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Oct 18, 2008 10:57 as a reply to  @ shutterbugcrazy's post |  #7

now his finished sharpened inage ontop and my finished sharpened image below. You can see a difference in the trees and on the roof top.


https://www.facebook.c​om …otography/36095​6144097830 (external link)

  
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shutterbugcrazy
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Oct 18, 2008 10:59 as a reply to  @ shutterbugcrazy's post |  #8

now this last image I applied the velvia vision plug in to my sharpened image


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René ­ Damkot
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Oct 18, 2008 13:26 |  #9

While I appreciate taking the effort of making a tutorial, you cannot post other peoples images if they haven't set "Image Editing Okay"

The original images you refer to are in the above linked thread. You can link to your versions if you like here (or there), but you cannot attach them.
Please follow image posting rules in https://photography-on-the.net/forum/showthre​ad.php?t=194511


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shutterbugcrazy
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Oct 18, 2008 15:06 |  #10

sorry didn't even notice


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str8six
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Oct 18, 2008 23:22 |  #11

shutterbugcrazy wrote in post #6517193 (external link)
I see alot of unsharp images on these forums and some people have been IM'ing me asking what I do to sharpen mine. Here's an easy technique I use on every picture to make them pin sharp and it's done like this to prevent color noise and halos.

  1. open color image
  2. make sure you have the channels palette shown in the window menu at the bottom of PS
  3. under image menu, under mode choose lab color
  4. in the channels palette it changes from color tabs to "lab, lightness, a, b" click on the lightness tab
  5. in filter drop down menu select unsharp mask filter and use these settings: amount 85%, radius 1 pixel, threshold 4 levels
  6. if you need a little more sharpening select unsharp mask again and use the same settings one more time or bring down the amount slider to your liking.
  7. go back to image menu, mode and choose RGB
now you just only sharpened the lightness in the photo while not tweeking the colors therefore avoiding noise and halos. If you have too much noise (color or ISO) before you sharpen this step will make them worse, but if you start with an image that isn't noisy then these steps will greatly improve your image.

Looks good. Any reason this couldn't be done as an action? Thanks for the tutorial.


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Picture ­ North ­ Carolina
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Oct 19, 2008 06:30 |  #12

Appreciate your tutorial. However, there are known issues using this method such as potential color shifts when moving to print.

Here is a good tutorial on sharpening. Near the bottom is a section (Lab Color Sharpening Using the Luminosity Data) that specifically addresses these issues.

After much experimentation with different methods as well as sharpening applications, I personally have found that the TLR sharpening tools (external link) (using advanced modes and fine tuning) works best at achieving the level of sharpening desired without crossing the threshold into the destructive haloing effect.


Website (external link) |

  
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ChasP505
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Oct 19, 2008 07:58 as a reply to  @ Picture North Carolina's post |  #13

I may be mistaken, but the OP's method comes out of one of Kelby's books. I have this set as an action on my office PC and often use it when I'm trying to improve poor quality real estate photos.


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René ­ Damkot
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Oct 19, 2008 12:37 |  #14

ChasP505 wrote in post #6521912 (external link)
I may be mistaken, but the OP's method comes out of one of Kelby's books.

Yes, so? ;)

Here is the article CannedHeat meant to link: Click (external link)

I also recommend the TLR scripts.


"I think the idea of art kills creativity" - Douglas Adams
Why Color Management.
Color Problems? Click here.
MySpace (external link)
Get Colormanaged (external link)
Twitter (external link)
PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.

  
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ChasP505
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Oct 20, 2008 14:14 |  #15

René Damkot wrote in post #6522978 (external link)
Yes, so? ;)

So thanks to shutterbugcrazy for sharing! It's a good method for applying gentle, subtle sharpening.


Chas P
"It doesn't matter how you get there if you don't know where you're going!"https://photography-on-the.net …p?p=10864029#po​st10864029

  
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best way to sharpen images in Photoshop CS2
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