Curvemeister Forum

I did one neutral on the countertop and then a second to remove the magenta cast to the back wall.I took the second from the side frame which also had the cast.GregM

The hueclock still shows a cast on the tiles inside the shop but now
it is at 9 rather than 11.GregM

Lab version.Here I duped the lab copy then pinned the upper corner of the magenta then pulled a bit to the left.Really couldn't tell if I accomplished anything.GregM

In lab the most color adjustments seem to be near the center of the grid. 
try this...

• Open the image in LAB, then switch to the A curve and expand the grid until it is over half of your screen.


• Place your mouse on the image where you think there is a color cast and right click.


• From the drop down select "mark"  This will place a mark on the curve for your reference.

This is the part of the A curve that is holding the color information for the spot you marked. 
This is where you want to adjust the curve. 
If you move it you will also move the green side because the curve needs to "flex".

To prevent the "flex"

Right click near the center of the curve and select "Pin Grid" on the submenu choose the correct side of the grid to "pin" You want the Magenta side to move so pin the Green.  Make small adjustments and see what happens to the image....

Greg

Count on the countertop and window frame to be neutral, since it's brushed stainless steel, but not the tiles in the shop (which are likely to be lit by fluourescent, and may not be neutral in the first place).

Thanks for the help.I'll do it again and use the right side of the frame for the neutral.GregM