Color value of a cell

Jan 20, 2006 at 4:34pm

Color value of a cell

I am trying to collect the value of a specific cell in a jit.matrix. when i use the “getcell” attribute it gives me the values of all four channels (argb)… all i want is one value between 1 and 256. is there a simple way to output this value to a number box?

#24011
Jan 20, 2006 at 8:16pm

Hello,
If by “one value” you mean the luminance of the cell, you will need to
pass through jit.rgb2luma, to convert your matrix into a 1 plane.
Otherwise, you could always just choose an arbitrary plane to track.


Andrew B.

#68838

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