RetouchPRO

Go Back   RetouchPRO > Studio > Contests
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Contests Retouching contests to challenge your skills and learn from others. Prizes for the winners!

Aug-Sep 2014 Contest Discussion

Reply
 
Thread Tools
  #1  
Old 08-09-2014, 10:30 AM
T Paul's Avatar
T Paul T Paul is offline
Moderator
 
Join Date: Aug 2001
Location: USA
Posts: 2,987
Aug-Sep 2014 Contest Discussion

Add your comments, questions or general discussion about the contest entries here. This is also a great place to share your techniques or ask others about theirs.

Most members are eager to hear comments/suggestions about their entries, so please take the time to help each other out.
Reply With Quote top
  #2  
Old 08-13-2014, 09:40 AM
Dave-Oh Dave-Oh is offline
Junior Member
 
Join Date: Sep 2012
Location: Ireland
Posts: 1
Re: Aug-Sep 2014 Contest Discussion

Brilliant competition - and a curious experience. Still downloading the TIFF version, had a play with the JPEG. It's a shame that it's not a tiny bit higher in resolution, though I guess it should make it easier to play with. (Ah, the TIFF is grand!)

One of the images appears to have a tiny amount of warp in it (or else my difference aligning wasn't correct!) around the middle of the picture. The damage to the sides on that image give some idea what happened.

I was particularly interested in the Blue channel - in RGB images this typically contains most of the noise - hopefully that should help people identify the channel!

Foghorn002 - can't see your image anywhere.
Reply With Quote top
  #3  
Old 08-13-2014, 10:26 AM
cheekerz's Avatar
cheekerz cheekerz is offline
Junior Member
 
Join Date: Feb 2009
Location: Los Angeles/Orange County
Posts: 2
Re: Aug-Sep 2014 Contest Discussion

Sounds like a fun test... I will look into it.
Reply With Quote top
  #4  
Old 08-13-2014, 12:35 PM
PixelPurfect's Avatar
PixelPurfect PixelPurfect is offline
Junior Member
 
Join Date: Feb 2008
Location: Indianapolis
Posts: 13
Re: Aug-Sep 2014 Contest Discussion

The Alias Blue Channel is a different composition. The young man sitting on the logs in the middle has his lips parted in the darkest (blue) channel. The other facial expressions don't align either in that part of the image. What a colossal waste of time. If you wanted me to build a fake blue channel out of the green why did you include a misleading blue channel? Dumb!
Reply With Quote top
  #5  
Old 08-13-2014, 01:31 PM
rodrigounda rodrigounda is offline
Junior Member
 
Join Date: Sep 2010
Posts: 2
Re: Aug-Sep 2014 Contest Discussion

i think this picture was taken using colour filters over the lens. that's why there a slight difference in one of the "channels"
this is what I got:
https://farm6.staticflickr.com/5586/...fa881de8_b.jpg

Last edited by rodrigounda; 08-13-2014 at 01:44 PM. Reason: linking the image
Reply With Quote top
  #6  
Old 08-13-2014, 01:32 PM
lkroll's Avatar
lkroll lkroll is offline
Senior Member
Patron
 
Join Date: Jan 2005
Location: Alabama
Posts: 4,746
Re: Aug-Sep 2014 Merge Channels Contest

GIMP has built in support to compose from grays. Did the below after around 15 minutes but, it's still way too much for a lazy man like me to do the cleanup work. lol

Biggest issue is to align the frames of course.

http://imageshack.com/a/img673/7024/8HbQxz.jpg
Reply With Quote top
  #7  
Old 08-13-2014, 03:29 PM
kuasar kuasar is offline
Junior Member
 
Join Date: Aug 2011
Posts: 10
Re: Aug-Sep 2014 Merge Channels Contest

I'm on it!

@lkroll, Gimp does a very nice job aligning, but did you notice it actually requires manual fine tunning because the guy in the middle moved in between shots? You can notice some aberration in that area due to this and there is no way it can be done totally automatic .

Last edited by kuasar; 08-14-2014 at 06:10 AM.
Reply With Quote top
  #8  
Old 08-13-2014, 08:46 PM
daygraphics's Avatar
daygraphics daygraphics is offline
Senior Member
 
Join Date: Feb 2011
Location: Pittsburgh
Posts: 268
Re: Aug-Sep 2014 Merge Channels Contest

I am going to give this a try. I usually don't compete in these contests and generally don't have the time to do them justice, but this one intrigues me. Some interesting results so far already posted - and some surprising variance in results. Those differences actually seemed unlikely at first read, but I've yet to do it - so I'll see what comes of my efforts.
Reply With Quote top
  #9  
Old 08-13-2014, 10:26 PM
daygraphics's Avatar
daygraphics daygraphics is offline
Senior Member
 
Join Date: Feb 2011
Location: Pittsburgh
Posts: 268
Re: Aug-Sep 2014 Merge Channels Contest

Very nice take rambaldi92!
Reply With Quote top
  #10  
Old 08-13-2014, 10:46 PM
daygraphics's Avatar
daygraphics daygraphics is offline
Senior Member
 
Join Date: Feb 2011
Location: Pittsburgh
Posts: 268
Re: Aug-Sep 2014 Merge Channels Contest

So... I must admit, breaking this down was a revelation of presumed past technology. I am not familiar with the process of taking a color photo in this era (although I probably should be). But it does appear that the photographer takes 3 shots, advancing the film as he changes his lens filters (YMC) to capture the blue, green, red light. What we have downloaded is a contact sheet (a print) of that film, which accounts for the dirt in some frames, but not others. Initially thinking the dirt specs could be lined up in the layers of RGB, but soon realized that dirt/dust on the neg in one spot will not correlate to the same area of the image in the other channels. Obviously, as some have pointed out, the man in the middle (kneeling) had the hardest time holding his position during the 3 exposures. So I actually morphed him individually, and selectively, to try and get a better alignment and focus for him. Also rather obvious is that the Wood Piles did not move - so, this is a good place to start your alignment. Got lots of other observations while playing, but cut short (for now) and show you a quick rendition of where I am.
Attached Images
File Type: jpg RETOUCH1.jpg (95.2 KB, 143 views)
Reply With Quote top
Reply

  RetouchPRO > Studio > Contests


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
Jan-Feb 2014 Contest Discussion T Paul Contests 10 03-20-2014 10:39 AM
Jan-Feb 2014 Contest Votes T Paul Contests 5 03-09-2014 10:22 AM
Nov 10 Contest Discussion T Paul Contests 23 12-22-2010 06:33 PM


All times are GMT -6. The time now is 03:50 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