Custom ICC Monitor Profile

[David Fairbanks]

Does anyone know of a method or software to tweak or create custom ICC profiles for monitors?

I've found that the color set in RedCine is different than what I'm getting out of FCP on my calibrated production monitor. If there was a way of making a custom profile so that the computer monitor looked identical to the production monitor, better color corrections could be made in RedCine.

I have the Eye-One monitor calibrator and it gets it as close as any method I've found but it's still different enough to be annoying. I can open up the profile in BBEdit but the numbers make no sense to me at all.

 

[Paul Leeming]

Is this the infamous gamma bug plaguing you? As in, FCP uses a Quicktime gamma of 1.8 whereas RedCine operates at the standard 2.2 gamma.

Just a thought.

HTH

Paul

 

[Kaku Ito]

Paul, it's not a bug, it's just the way Apple implements things. I know you don't like Macintosh, but calling this as a bug won't explain things well for treating materials correctly.

And FCP shows CERTAIN materials at 2.2 while the computer display set at 1.8, but that is depending on the materials (and for example, when you import TIFF materials, you can change the display gamma in the item property/format/gamma setting).

The color profile can be edited in the system preference/Displays/Color/calibrate, and most cases you just have to choose the right profile for your monitor, then make adjustments on the gamma settings depending on the application you are working with (you can also get the same result by choosing the different gamma choices upon Eye-One calibration scheme).

I believe REDCINE displays 2.2 gamma on the monitor set to 1.8 gamma setting, so do other RED apps., including Clipfinder (Deanan or Hans, please confirm on this). If you use Eye-One probe to set your monitor at 1.8 gamma then in FCP and REDCINE, the materials should correctly displays with the right gamma curve.

There might be another factor that makes differences in color reproduction which is YUV and RGB setting that you might have to be carful of.

But I can tell you this, if you set the monitor to display at gamma 1.8 and grade with REDCINE, the QuickTime 422 output from REDCINE will look accurate when you place it on FCP timeline then monitor it out through Blackmagicdesign, Matrox MXO or MXO2 and MOTU V4HD.

 

[David Fairbanks]

I know the gammas are different but it was more than a gamma problem, it was a color problem. The computer was to red and not enough blue.

I solved this by calibrating using the Eye-One and a program called BasICColor (14 day free trial). This got the color close then the program has a curve editor that allowed me to modify the curve at three different points (middle, light, dark) to get the color looking perfect. Using the freeze frame ability of my production monitor to hold a frame from FCP, I changed the monitor profile while comparing RedCine and the production monitor. Now I can grade in RedCine with confidence.