| Description: The uneven_bit_weight_correction_flag indicates whether the bit weight correction was applied to compensate for non-uniform weighting of bits in the digitized signal. This correction is: - Applied only to uncompressed, non-TABLE mode images - Skipped for lossy-encoded images where the effect is insignificant - Camera and gain-state dependent, using specific correction tables for: - NAC/WAC cameras - Gain states (0,1,2,3) - Temperature ranges (-10°C, +5°C, +25°C) The correction uses calibration tables derived from ground calibration exercises to convert raw DN values to their true linear representation. It is a critical early step in the calibration pipeline, typically performed after 8-to-12 bit conversion but before bias subtraction. |