Fig. 6
From: Development and in-flight calibration of IR2: 2-μm camera onboard Japan’s Venus orbiter, Akatsuki
Flat-field correction: Flat-field correction is applied to an example 1.735-μm image. The brightness discontinuity between adjacent quadrants disappears, indicating appropriateness of the correction. The overall flat-field pattern is indicated in the left with explanation how pixels are read with CSD/CCD architecture. The gray scale from 0.8 to 1.2 is shown as indicated in the color bar