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Grr Legs!

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  #1  
Old 03-31-2010, 11:05 AM
risenshine risenshine is offline
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Question Grr Legs!

Hi
I need to retouch these legs to get rid of crazy tiny spots without blurring, Can i use channels to smooth out, read here some one used Calculations to improve texture? Have already done some D&B

any help is most appreciated,

S
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Old 03-31-2010, 12:31 PM
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flexmanta flexmanta is offline
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Re: Grr Legs!

Make a frequency separation in order to have the good texture on the high, and the unwanted spots on the low. Clean the low as needed.

Frequency separation:
-Make sure ur wokring 16 bits.

-Make 2 duplicates, name them low and high.

-Select the low, gaussian blur it at around 2-5 pixels (depends on the size of your image).

-Select the high, set it's mode to linear light and go image->apply image and use these values:
source: Low, invert
mode: add
scale: 2
offset: 0

Now, apart from the base layer, you got 2 new layers (low and high), that when turned on will look like the original. Now look at each layer individually. You will notice that most of the problem you mention is contained on the layer named low.
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Old 03-31-2010, 01:03 PM
risenshine risenshine is offline
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Re: Grr Legs!

hey Flex
thanks for the response, so i assume i mask as normal, and paint in, will give it ago

any more responses will be welcome x
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Old 04-01-2010, 03:00 AM
risenshine risenshine is offline
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Re: Grr Legs!

Mmm, tried this high frequency thing, not really seeing a difference?
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Old 04-01-2010, 04:16 AM
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Mike Needham Mike Needham is offline
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Re: Grr Legs!

What would you suggest if the image is only 8bit? As there is no point in up scaling to falsely I presume.
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Old 04-01-2010, 05:37 AM
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Der_W Der_W is offline
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Re: Grr Legs!

Frequency separation is supposed to give you the exact same image you started with.
The only difference to the original is that you now have two layers: one with the shading (LOW) and one with all the details (HIGH) and you can work on both separately without having to worry about the other one.
In 8Bit it would be the exact same steps but in "Apply Image" you'd choose Blending Mode: Subtract, Scale: 2, Offset: 128.

The scale has btw. nothing to do with enlargement.
It simply means that both pixel values of the layers are added together and then divided through the value of "Scale" (put in a scale of 1 in the 8Bit Apply Image" and you'll get an ordinary highpass).
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Old 04-01-2010, 06:37 AM
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flexmanta flexmanta is offline
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Re: Grr Legs!

Exactly, this isn't a 2 click fix. It's a way to isolate the problem so you can take care of it with the conventional tools. As i told you, once you separate the images you will notice that the main problem is on the low layer (given you used the right radius). Clean that layer only so you can leave the finer texture alone.
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