Go Back   RetouchPRO > Technique > Input/Output/Workflow
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read

Input/Output/Workflow Scanning, printing, color management, and discussing best practices for control and repeatability

Gradient riddle

Thread Tools
Old 08-05-2006, 03:04 PM
Cameraken's Avatar
Cameraken Cameraken is offline
Senior Member
Join Date: Feb 2005
Location: Lancashire (UK)
Posts: 1,158
Thanks for the replies Doug and Randy.

It does appear that adding noise is the accepted solution.
I have attached the histograms of a black to whites gradient (smoothness = 0)
The second one has 3% gaussian monochromatic noise added.

This histogram does not look that much better but it sure does help the banding.

Apologies to Uniguide for the hijack of your thread but I hope this has helped.

Attached Images
File Type: jpg Ken_Histograms2.jpg (25.1 KB, 25 views)
Reply With Quote top
Old 08-09-2006, 09:53 PM
lkroll's Avatar
lkroll lkroll is offline
Senior Member
Join Date: Jan 2005
Location: Alabama
Posts: 4,685
As long as the transistions ...

...are not abrupt, I've found that using Xero's fuzzifier adds just the right mix of noise and blur to blend gradients fantastic. I use this filter a lot for sky gradients.
Reply With Quote top
Old 08-16-2006, 09:20 AM
uniguide uniguide is offline
Junior Member
Join Date: May 2006
Posts: 12
Thumbs down GUYS & GRRLS - UR THE BEST

Adding noise solved most of the problem.
You guys are the best, its so good to know that there are people who are willing to contribute their knowledge to help others.
I am doing the same, aways willing to help others, if i can.
Together we make an awesome community.

Zohar L.
Reply With Quote top

  RetouchPRO > Technique > Input/Output/Workflow

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
Gradient Map Corrections snapshot Hidden Power Support 2 09-22-2007 06:29 PM
Gradient tool generates stripes stefan kanya Input/Output/Workflow 4 08-05-2006 01:24 AM
Replacing the Sky -- Using a Radial Gradient gmitchel Photo Restoration 0 10-16-2004 08:38 PM
curves + gradient caroled Hidden Power Support 2 01-29-2004 06:05 AM
Smoothing Large Blotches kthurner Image Help 15 01-14-2003 12:02 PM

All times are GMT -6. The time now is 08:21 AM.

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