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Standard Detector correction (128 in rows)

raw - pedestal cm in r rows(128) and columns (512) using mask for square regions

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Summary

• Image for raw data has horizontal and vertical stripes
• pedestals and gain, averaged for many images (common mode is averaged to zero), have vertical strips ONLY!
• So, common mode effect gives strong contribution in rows (horizantal strips)
• Median algorithms gives bands in image depending on regions of image brightness

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