WOW - a completely new way of adjusting images

[TheMightyZog]

Hi,

Jacob Rus has invented a new way of color-correcting images in Photoshop (would probably work in GIMP too), that is intuitive and easy to do.

I was so impressed I thought I'd write it up and share it with you.

Have a peek http://www.broadhurst-family.co.uk/lefteye/MainPages/jacobsladder.htm

I've included some PS actions so that you can experiment.

Here is the link to some examples Rus has done http://www.hcs.harvard.edu/~jrus/colortheory/jl.html

[Halite]

Hi,

Rus Jacob has invented a new way of color-correcting images in Photoshop (would probably work in GIMP too), that is intuitive and easy to do.

I was so impressed I thought I'd write it up and share it with you.

Have a peek http://www.broadhurst-family.co.uk/lefteye/MainPages/jacobsladder.htm

I've included some PS actions so that you can experiment.

Here is the link to some examples Rus has done http://www.hcs.harvard.edu/~jrus/colortheory/jl.html

Thanks for sharing this technique. It really does deserve a huge "WOW!"

I'm looking forward to exploring some of your actions.

[TheMightyZog]

Here is a sample image where daylight and sodium lighting fooled the camera
http://www.broadhurst-family.co.uk/Photos/JLsample.jpg
one has never seen curves like this before! And it was virtually impossible using conventional corrections.

[BinaryFx]

When Jacob first posted this method to the Dan Margulis Applied Color Theory List it caused some interest as well!

This is a case of "independent researchers" coming up with similar ideas. To be accurate and fair - I also have to give credit to an earlier source that Jacob did not know about when he originally posted his new method:

http://tech-slop.serveit.org/wiki/index.php?title=Curves_and_Linear_Light

In other forums (Photoshop Techniques and Ozone Asylum), the author linked above describes the use of the L channel as a mask for the curving of the L, a and b channels - which is even more similar to Jacob's method (the two methods are similar yet slightly different).

I have only given this limited testing, sometimes it works better than regular Lab mode curves, other times I have found the standard Lab curves better (although this may be due to having more experience with the regular way of curving).


Regards,

Stephen Marsh

http://members.ozemail.com.au/~binaryfx/
http://prepression.blogspot.com/