ACR white balance tool Q!

ACR white balance tool Q!
Does it point sample one pixel, 3x3 average, 5x5 average... I have always wanted to know this!
Good question huh?!
Mark

.Eric Chan - 10:43pm Sep 14, 08 PST (#3 of 3)
The color sampler tool is different in that it uses a fixed # of pixels. The actual # of pixels used is image-dependent, however. So it's not something constant like 3x3 or 5x5.
I'm assuming this is just something you're curious about, as opposed to something that will actually help you use the tools?
Thanks again Eric.
Actually, I think it might HELP ME use the tools better. In PS, as we know, there is the option of choosing point sample, 3x3, 5x5... because the tools sometimes work very differently with the different settings. It seems reasonable to conclude that different results may occur, at times, in ACR if one could know and change the settings there. Of course (at least to my knowledge) the aforementioned tools cannot be changed in ACR, but I would like to better know how they are working for potential better results.

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