RetouchPRO

Go Back   RetouchPRO > Technique > Photo Retouching
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Photo Retouching "Improving" photos, post-production, correction, etc.

Automatic Skin Smoothing.

Reply
 
Thread Tools
  #1  
Old 10-10-2010, 02:56 PM
ShadowLight ShadowLight is offline
Senior Member
 
Join Date: Oct 2009
Posts: 397
Automatic Skin Smoothing.

PhotonicTools - Skin Smooth


Download and Instructions:
http://www.facebook.com/pages/Photon...5060099?v=wall


Current Version:
v.2.0

Pro v.1.7
- Strength control.
- Faster implementation

Update: v.1.5
‎- Control for size-variance added.
- Version mismatch check.
- Precision Increase 2-decimal points (0.01)
- Selection aware. (use select tool to create only for target areas)
- (a few others)
Tip: click on slider and use the arrow keys for fine-adjustments

v. 1.0
- Automatic detection of image-size and adjusting values accordingly.
- Rasterize will create ready to paint mask to allow easy painting of each Skin Smoothing layer only where it is needed.
- Multiple dynamically adjusted skin-smoothing layers.
- Built-in skin-tones masking



Myths/Disinformation:
- 1) Myth: Portraiture is better as it has skin-masking.
SkinSmooth also has automatic masking of the skin.

- 2) Myth: Using -50 contrast (legacy mode) will produce "higher quality results".
In reality when it comes to eliminating a frequency band -50 Contrast leaves some noise (in 8bit).
Unlike the case when we split the image to work just on specific frequency (and where "apply" will give better reuslts), here we need to flatten the frequency, and tests show that the currently used method gives better results.

- 3) Disinformation: You can't set different radius.
This is completely false. Using the slider you change precisely that.

- 4) Disinformation: There are other similar techniques that will give you better results. (shown in DVD tutorials)
The technique that was implemented is nothing new, and I doubt that any one can claim it as being "his". I have tested the rest of the similar techniques and implemented the one that gives best results.

- 5) Disinformation: This is not Inverse High Pass technique, and it is not split frequency.
Ironically enough the implementation is exactly a High Pass of the inverse of the image. The corrections are targeted visual band frequency adjustments, so in essence we split a visual frequency, invert it and apply it with selected weight to eliminate from pores to blotches.


example:
http://www.youtube.com/watch?v=aj3n_yJ8GmQ&hd=1
the video is recorded in real-time, 4 min.



... after a whole bunch of mudding the water before everything gets lost in disinformation and imaginary precision targets I'll summarize everything and hopefully this will clear the raised issues.

Disinformation: the current technique creates clipping.

First and foremost - clipping? is there one?
A: - No.
The only way you can get the so mentioned "clipping" will be if you override the SkinSmooth's calculated values for HP/GB. In reality it is not image clipping at all, but details from the original image start to show.

see the attached image: SmoothClipping.jpg

To get this problem you need to be retouching a very small image, and force override HP to a very large number. As shown in the example, the maximum HP SkinSmooth calculates for possible use is r:18. However even if you push it with an override to r:90 you still don't have the so mentioned problem. Only when you get over r:200 you start to get some details back from the original. (this was the big "issue" that was deemed "clipping the image")


Why do you use Fill/opacity and not contrast -50 or custom filter?
- "contrast -50":
The issue with contrast -50 for this specific use is that applied it is dependent on the mean brightness, which can change if you make changes to the background, but even if it were not an issue Brightness/Contrast cannot be stacked as a filter on a Smart Object. It could be used inside the smart object, but this will hamper the dynamic operations as the slider "strength" will have to be able to change those values on the fly.
- "custom filter":
Although that sounded like a good alternative, the use of the filter produced very poor results, so there was no sense using it.


How big is the difference between the results from Contrast -50, and Opacity 50%?
- see attached image: Compared(to_contrast-50).jpg


Are the differences due to image clipping?
- No.
It appears the bands are slightly different but there is no clipping whatsoever.


So are there differences?
- Yes. (quite small)

Opacity50 leaves more detail (after smoothing) in the highlights
and smooths most of the mid-tones better.
img: Extra details of Opacity50

Contrast-50 leaves more detail (after smoothing) in the midtones,
and smooths out the highlights better.
img: Extra details of Contrast-50

The comparison images are boosted as before so the differences can be visible (in reality they are only a few digits away from each other).


If you like to examine the differences up close here is the PSD (about 100mb):
Compare(to_contrast-50).psd
Attached Images
File Type: jpg SkinSmooth_ext.jpg (47.7 KB, 125 views)
File Type: jpg SkinSmooth_interface.jpg (28.6 KB, 109 views)

Last edited by ShadowLight; 11-06-2010 at 10:53 PM.
Reply With Quote top
  #2  
Old 10-10-2010, 03:06 PM
ShadowLight ShadowLight is offline
Senior Member
 
Join Date: Oct 2009
Posts: 397
Re: Automatic Skin Smoothing.

since there have been a few people spreading misinformation about how the program works and what it does, below are a few clarifications to keep things in check.

Myths/Disinformation:
- 1) Myth: Portraiture is better as it has skin-masking.
SkinSmooth also has automatic masking of the skin.

- 2) Myth: Using -50 contrast (legacy mode) will produce "higher quality results".
In reality when it comes to eliminating a frequency band -50 Contrast leaves some noise (in 8bit).
Unlike the case when we split the image to work just on specific frequency (and where "apply" will give better reuslts), here we need to flatten the frequency, and tests show that the currently used method gives better results.

- 3) Disinformation: You can't set different radius.
This is completely false. Using the slider you change precisely that.

- 4) Disinformation: Limited use of the radius.
The program automatically sets upper boundary for the useful radius. It is calculated based on the image-size, and if you resize your image the maximum radius will be adjusted accordingly, so you will always have the full useful range to work with. (up to the base Photoshop limitations)

- 5) Disinformation: There are other similar techniques that will give you better results. (shown in DVD tutorials)
The technique that was implemented is nothing new, and I doubt that any one can claim it as being "his". I have tested the rest of the similar techniques and implemented the one that gives best results.
And I did test them.
Any technique that does not apply a mask on the target correction can have dark halos from let's say dark hair. This is avoided by using a mask on the source before applying any modifications (something SkinSmooth does automatically)m other techniques were producing noise in 8bit.

Last edited by ShadowLight; 10-14-2010 at 05:07 PM.
Reply With Quote top
  #3  
Old 10-10-2010, 05:35 PM
Tyjeco Tyjeco is offline
Junior Member
 
Join Date: Jan 2008
Posts: 17
Re: Automatic Skin Smoothing.

Wow, great work. Don't make photoshop to easy man!!! haha. Really impressed! Thanks.
Reply With Quote top
  #4  
Old 10-11-2010, 03:29 PM
Zampano Zampano is offline
Junior Member
 
Join Date: Apr 2006
Posts: 11
Re: Automatic Skin Smoothing.

This is really cool stuff, thanks so much for sharing...!
Reply With Quote top
  #5  
Old 10-16-2010, 11:20 AM
ShadowLight ShadowLight is offline
Senior Member
 
Join Date: Oct 2009
Posts: 397
Re: Automatic Skin Smoothing.

Skin NR
- say goodbye to the halos
http://www.youtube.com/watch?v=_MLrxxQgOZk&hd=1

Advanced D&B
-brush-size aware corrections,
-adjusting only the targeted texture size
-so precise you can retouch a thumbnail
http://www.youtube.com/watch?v=Zpt1M45b6PM&hd=1

Last edited by ShadowLight; 10-18-2010 at 01:22 AM.
Reply With Quote top
  #6  
Old 10-17-2010, 07:14 AM
warrenj warrenj is offline
Junior Member
 
Join Date: Nov 2008
Posts: 17
Re: Automatic Skin Smoothing.

Great tools & videos. Thank you, very generous of you to share with us.

I'm looking forward to Skin NR!!
Reply With Quote top
  #7  
Old 10-18-2010, 02:23 AM
ShadowLight ShadowLight is offline
Senior Member
 
Join Date: Oct 2009
Posts: 397
Re: Automatic Skin Smoothing.

I made small update:
now you can make a selection of what you would like to target for correction
(make a selection of your target area, and press "Create")

update this file: http://mobilefiles.ca/split/SkinSmooth.jsx
Reply With Quote top
  #8  
Old 10-18-2010, 08:16 AM
warrenj warrenj is offline
Junior Member
 
Join Date: Nov 2008
Posts: 17
Re: Automatic Skin Smoothing.

I'm having a minor problem with it now. I can't rastersize the layer.
Reverted back to the previous version & that seems fine.
Reply With Quote top
  #9  
Old 10-18-2010, 10:12 AM
ShadowLight ShadowLight is offline
Senior Member
 
Join Date: Oct 2009
Posts: 397
Re: Automatic Skin Smoothing.

I just tested it here, and looks like it works

if you had an older version of the interface (swf) that could have been the problem
try updating both files and see if you still have the problem

(after updating both files, let me know if you still have the problem)

Last edited by ShadowLight; 10-18-2010 at 10:41 AM.
Reply With Quote top
  #10  
Old 10-18-2010, 07:17 PM
warrenj warrenj is offline
Junior Member
 
Join Date: Nov 2008
Posts: 17
Re: Automatic Skin Smoothing.

My apologies. I thought I had the latest version of both files but I was mistaken.
It is working great......now where is that embarrassed emoticon.

Edit: Oh & BTW, that's a very cool feature.

Last edited by warrenj; 10-18-2010 at 07:27 PM.
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Retouching


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Glamour retouch challenge here!!!! superkoax Photo Retouching 332 02-08-2011 09:52 PM
Automatic Skin Tone Retouching - Seeking feedback Pixarra Photo Retouching 15 11-09-2010 01:38 AM
Skin Smoothing Technique (Again) Novi Photo Retouching 10 10-16-2008 04:25 PM
need help doing pageant eyelashes and skin smoothing w/ photoshop cs sandylavallie Photo Retouching 3 05-06-2005 08:53 AM
skin smoothing action john_opitz Photo Retouching 10 08-21-2002 10:48 PM


All times are GMT -6. The time now is 05:16 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved