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Article ID: NGN1190 — Created: 21 Aug 2019 — Reviewed: 26 Aug 2020
Color correction is a common image processing technique that makes rendering captured images more accurately reflect the observed color. Practically all image sensors and cameras require and benefit from some form of color correction.
uScope Navigator v4.5 adds a new filter type that enables color correction through the use of a 24-bit color look-up table (LUT) file. This file may be applied to Overview, Objective, and Deep Zoom Filter Sequences.
When enabled, the uScope Navigator software replaces each pixel color with the corrected color from the LUT. Performance for this replacement is very fast and has an imperceivable effect on the performance of the scanner.
uScope Navigator includes one or more standard color correction files as part of the installation. End users may wish to create their own color correction files to use as well.
Color correction LUT files are stored in the following folder:
C:\ProgramData\Microscopes International\uScope Navigator 4\Color Correction
The color correction file is a binary file formatted as an array of unsigned byte (8-bit) numbers [256*256*256,3] stored in row-major order. An RGB value [R,G,B] is mapped in the LUT as [R*256*256 + G*256 + B].
If the size of the color correction LUT file is not exactly (2^24)*3 bytes, it is ignored.