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Article ID: NFL1051 — Created: 5 May 2017 — Reviewed: 5 May 2017
What does the look-up table filter do?
The lookup table filter allows you to define the mapping of input to output pixel values.
The lookup table uses a segmented line with three adjustment points you can drag to adjust the input to output pixel mapping. It adjusts red, green, and blue colors equally.
The bottom axis represents input values while the left axis represents output values. A value of 0 is 100% black while a value of 255 is 100% white.
The lookup table is a powerful filter that can efficiently simulate complex operations.