Soft proofing with the new ICC for Kodak Paper

Mike Kalcevic

:scratch

What is the best way to correct for the deeper reds that I'm seeing in my proofing window. (Look at the wood cabinets) A screenshot exapmle is below. Original on the left, EZ Prints 2008.1 soft proof view on the right. (the custom proof is set up as instruced in the smugmug help tutorial)

http://MEKPhotography.smugmug.com/photos/274579582_HWDhS-X3.jpg

BinaryFx

Mike Kalcevic wrote:

What is the best way to correct for the deeper reds that I'm seeing in my proofing window. (Look at the wood cabinets) A screenshot exapmle is below. Original on the left, EZ Prints 2008.1 soft proof view on the right. (the custom proof is set up as instruced in the smugmug help tutorial)

Mike, my first thought would be "is the softproof accurate"? Would this variation be within the tolerance for variation in the photo print process?

That being said, I would simply throw some curves at the image, to the red and blue channels. The curve adjustment layer would be set to color blend mode, rather than normal, so as not to affect luminosity.

The curves are illustrated below (sRGB being presumed). The edited point is selected in each channel, the other two curve control points are simply "lock down" points so as not to affect other areas of the curve/image. These are global curves, they may affect other areas in addition to the red cabinets (this may or may not be a concern). One should pay attention that the roughly neutral shirt does not become more yellow, which can be subtle (using the info palette and colour samplers set to LAB readings is very helpful here).

EDIT: One can introduce layer option blend if sliders or layer masks to isolate the edit to the darker tones (if required), in addition to the curve lock down points which should be doing the same thing. More on blend if here:

http://members.ozemail.com.au/~binaryfx/blendif.html


Hope this helps,

Stephen Marsh
http://members.ozemail.com.au/~binaryfx/

Mike Kalcevic

BinaryFx wrote:

Mike, my first thought would be "is the softproof accurate"? Would this variation be within the tolerance for variation in the photo print process?

That being said, I would simply throw some curves at the image, to the red and blue channels. The curve adjustment layer would be set to color blend mode, rather than normal, so as not to affect luminosity.

The curves are illustrated below (sRGB being presumed). The edited point is selected in each channel, the other two curve control points are simply "lock down" points so as not to affect other areas of the curve/image. These are global curves, they may affect other areas in addition to the red cabinets (this may or may not be a concern). One should pay attention that the roughly neutral shirt does not become more yellow, which can be subtle (using the info palette and colour samplers set to LAB readings is very helpful here).

EDIT: One can introduce layer option blend if sliders or layer masks to isolate the edit to the darker tones (if required), in addition to the curve lock down points which should be doing the same thing. More on blend if here:

http://members.ozemail.com.au/~binaryfx/blendif.html


Hope this helps,

Stephen Marsh
http://members.ozemail.com.au/~binaryfx/

Thanks Stephen! Those are exactly the tips I was looking for.

Mike.