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. 2022 Feb 14;1(2):172–198. doi: 10.1515/mr-2021-0018

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© 2021 Jiacheng Xie et al., published by De Gruyter, Berlin/Boston

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Figure 4: — Three common color checkers. (A) A checker with 24 colors in an improved version [85]. (B) A checker with 120 colors [97]. (C) Color checker SG highlights the interesting regions [38].