We see temperature and temperature differences!!!
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CG320 & CG640 Manual
③
NOISE FILTER: Decrease noise in the image.
NR1: Apply built-in NOISE FILTER1 to decrease FIXED PATTERN NOISE.
NR2: Apply built-in NOISE FILTER2 to decrease GAUSSIAN NOISE.
NR1 + NR2: Apply both NOISE FILTER1 and NOISE FILTER2 at the same time.
④
NR1 (2) STRENGTH: Adjust strength of NOISE1 (2)
LEVEL 0 ~ LEVEL 6