Color Space Conversion for the Laser Film Recorder Using 3-D LUT

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A new method of color space conversion for the laser film recorder is proposed. The input image file (10 bits or more, RGB) is converted by a three-dimensional lookup table (3-D LUT), then fed to the film recorder as data from 10-bit RGB. Using this method, the image on print films is colorimetrically improved and matched to the image on a CRT monitor. This paper reviews a color transformation by conventional film recording that uses only one-dimensional LUT. A 3-D LUT is built based on a gamut mapping algorithm to compensate for the difference of the color gamut between CRT monitors and print films, employing a new soft-clipping method. Three gamut compression (clipping) methods are also evaluated. The calculation on the 3-D LUT is based on CIE LAB color coordinates evaluated by several observers. A guideline for quality control of color management in film laboratories is also discussed. This new system has been successfully applied to the production of feature animation footage.
Publication Date: 2002-11-01
DOI: 10.5594/J16322
Link: https://doi.org/10.5594/J16322
Author(s): Ado Ishii

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Ado Ishii; Color Space Conversion for the Laser Film Recorder Using 3-D LUT, SMPTE Motion Imaging Journal ( Volume: 111, Issue: 11, November 2002); SMPTE, 2002. Available at https://doi.org/10.5594/J16322

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Ado Ishii; Color Space Conversion for the Laser Film Recorder Using 3-D LUT, SMPTE Motion Imaging Journal ( Volume: 111, Issue: 11, November 2002); SMPTE, 2002. Available at https://doi.org/10.5594/J16322

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<span class="citation">Ado Ishii; <cite>Color Space Conversion for the Laser Film Recorder Using 3-D LUT</cite>, SMPTE Motion Imaging Journal ( Volume: 111, Issue: 11, November 2002); SMPTE, 2002. Available at <a href="https://doi.org/10.5594/J16322" target="_blank" rel="noopener">https://doi.org/10.5594/J16322</a></span>

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Ado Ishii; Color Space Conversion for the Laser Film Recorder Using 3-D LUT, SMPTE Motion Imaging Journal ( Volume: 111, Issue: 11, November 2002); SMPTE, 2002
doi: 10.5594/J16322
url: https://doi.org/10.5594/J16322

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Ado Ishii; <cite id="bib-10-5594-j16322">Color Space Conversion for the Laser Film Recorder Using 3-D LUT</cite>, SMPTE Motion Imaging Journal ( Volume: 111, Issue: 11, November 2002); SMPTE, 2002
<span class="doi">10.5594/J16322</span>
</li>