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LICENSE Agreement of BlueNeg Data Set version 1.0
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Dated: 2024-06-12
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License document prepared by Tien-Tsin Wong
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All photographs/negatives in this data set are owned and
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copyrighted by Tien-Tsin Wong.
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Why BlueNeg?
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This set of images is collected for studying the research problem of
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restoring the corrupted negative films. Due to the physical nature of
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negative film, the red, green, and blue light-sensitive layers are
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located differently inside the negative film. Therefore, the rates of
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deterioration of these three layers are different. I found that the
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blue channel is relatively vulnerable compared to the other two channels.
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Because the blue light-sensitive layer is on the outermost layer on
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the emulsion side. That is, the deterioration rates are heterogeneous.
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This characteristic is inherited from its ancestor, i.e., storing the
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three color negatives (R, G, B) on three separate glass plates by
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Prokudin-Gorsky.
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Since the blue channel is more vulnerable and the other two channels
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are relatively well-preserved, this means we can restore the blue
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channel by exploiting the retained information from the red and green
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channels to restore the color photograph. This is especially sound with
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the latest AI technologies.
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Unfortunately, most existing photo restoration techniques are
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developed based on printed photographs, in which the nature
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of deterioration is different from that of the negatives.
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This is why I have scanned a collection of negatives I have shot
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during 1980s to early 2000, for this research.
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How to Obtain Permission?
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All photos are owned and copyrighted by Tien-Tsin Wong. You are
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automatically granted with permission to use the images for academic
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and commerical usages, provided that the image credit
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"Copyrighted by Tien-Tsin Wong" is included in any forms of
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publication, reproduction, redistribution, or derivatives of the images.
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If you find the dataset is useful to you, please also cite our
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publication below in your work/publication.
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- Hanyuan Liu, Chengze Li, Minshan Xie, Zhenni Wang, Jiawen Liang, Chi-Sing Leung, and Tien-Tsin Wong,
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"BlueNeg: BlueNeg: A 35mm Negative Film Dataset for Restoring Channel-Heterogeneous Deterioration",
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arXiv preprint, 2024.
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