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Code for extracting groundtruth:
1.install dcraw according to requirements.txt
2.run "getgt.py" to get groundtruth

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"examples": raw(.dng) for six mobile cameras as well as .tiff and .dng.npy
     You can download from: https://drive.google.com/drive/folders/1Ok3C9Mr4x5lbeqhxifvFAKafCCKOA9L3?usp=drive_link.

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"mask": mask of manually annotated colorchecker positions for six mobile cameras
     You can download from: https://drive.google.com/drive/folders/1BP95s663jirHseClj4IUcpX_d0f2CoaZ?usp=drive_link.

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"mask_check": mask of manually annotated grey-blocks positions of colorchecker for six mobile cameras
     You can download from: https://drive.google.com/drive/folders/1T8ISzoKydYlO-_owjHD77n7khVaUVodA?usp=drive_link.