RetouchPRO

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


Photo-Based Art Emulating natural-media painting techniques

Render Luminosity and India Ink

Reply
 
Thread Tools
  #1  
Old 07-12-2003, 01:57 PM
Andrew B.'s Avatar
Andrew B. Andrew B. is offline
Senior Member
 
Join Date: Oct 2002
Location: Los Angeles
Posts: 432
Render Luminosity and India Ink

Working on color and luminosity as distinct elements is not new to photo retouching. It is also the basis for some of the edge sketch techniques where a grayscale layer is run through filters and then blended back with the original color.

Anyway, last night I tried out a filter called India Ink to see if it could be used as the first step for rendering the luminosity. Here are the basic steps I tried.

1. Copy background to new layer
2. India Ink set to Diffusion, making sure there are some areas that are all white. IOW, high contrast.
3. Diffuse|Anisotropic
4. Smart Blur
5. Diffuse|Anisotropic (to soften some artifact from Smart Blur)
6. Copy background again, place on top of stack, and reduce Luminosity. I used 61% in the example image.

After step five it's up to you. You can play more with the black and white layer, or flatten and work on the combined image using things like Unsharp Mask, smudging techniques, color accents, whatever.

(Since posting this method I found that setting the top layer to Color blending mode 100% opacity works better with some pictures).

Attached is a jpeg that shows the original (borrowed from Danny), the India Ink effect, and the point after step five. This image is best viewed without zoom, otherwise the India Ink version will dither like crazy. I used Danny's picture because it is well-lighted, uncluttered, and had very distinct forms. IOW, your mileage will vary, depending on the picture you use.

Oh, I almost forgot. Here is the link to India Ink. There is a demo version you can try. And here it the link to Danny's Image

Andrew
Attached Images
File Type: jpg luminosity and india ink.jpg (97.3 KB, 193 views)

Last edited by Andrew B.; 07-15-2003 at 12:26 PM.
Reply With Quote top
  #2  
Old 07-12-2003, 04:13 PM
Toad's Avatar
Toad Toad is offline
Senior Member
 
Join Date: Oct 2002
Location: Vancouver, BC, Canada
Posts: 177
Great technique Andrew. The finished product looks much like a high end comic or like one of those political posters from World War II / the Chinese Revolution.

I could really use this techique - alas I have no PS 7 - thus no anistrohic filter. I will fool around and see how far I can get without it. Super techique.
Reply With Quote top
  #3  
Old 07-14-2003, 01:01 PM
Andrew B.'s Avatar
Andrew B. Andrew B. is offline
Senior Member
 
Join Date: Oct 2002
Location: Los Angeles
Posts: 432
I just deleted my reply to Toad because I came up with a far superior way to replace Diffuse|Anisotropic.

1. The India Ink is exactly as before

2. Neat Image (I used the demo version). The goal is to take this up high enough to remove the dots, but no further. I was able to do this by taking a primary sample from her forehead, and a secondary sample from her cheek. Alternately, you can try adjusting by hand. The key is the "Y" slider.

3. Smart Blur

4. Unsharp Mask

Attached is a picture that shows the first method and then the second method. And I much prefer the second method. It allows more flexibility because I don't have to set things to make sure I eliminate the squiggle artifacts from Diffuse|Anisotropic.
Attached Images
File Type: jpg render-from-india-ink_2.jpg (98.8 KB, 103 views)
Reply With Quote top
  #4  
Old 07-14-2003, 01:20 PM
Toad's Avatar
Toad Toad is offline
Senior Member
 
Join Date: Oct 2002
Location: Vancouver, BC, Canada
Posts: 177
Excellent!

The first image looks slightly more toon-shaded, but the second has nicer contrast. Good investigation, and well done.

I'll be trying this out shortly. Do you use the India Ink filter quite a lot? I have no problem whatsoever with buying filters that I actually use - but am less excited about buying ones that I use on only one or two shots. What is your take? It looks fairly cool on the Flaming Pear site.

Thanks again.

Best
T
Reply With Quote top
  #5  
Old 07-14-2003, 05:01 PM
Andrew B.'s Avatar
Andrew B. Andrew B. is offline
Senior Member
 
Join Date: Oct 2002
Location: Los Angeles
Posts: 432
>The first image looks slightly more toon-shaded, but the second has nicer contrast.

I tried to get it exactly like the first one, but could not. OTOH, I only tried for about 30 seconds, and maybe it is possible with a different starting point.

>> but am less excited about buying ones that I use on only one or two shots

I had two terrific results right off the bat, but this was followed by three flops. So I cannot say yet how often this works. But the link I provided is to the free demo version, which is a full working version that times out. So anyone is free to try this on their pictures and see if it works for them.
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo-Based Art


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



All times are GMT -6. The time now is 01:00 PM.


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