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Academy Color Encoding System
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Academy Color Encoding System : ウィキペディア英語版
Academy Color Encoding System

Academy Color Encoding System (ACES) is a color image encoding system proposed by the Academy of Motion Picture Arts and Sciences that will allow for a fully encompassing color accurate workflow, with "seamless interchange of high quality motion picture images regardless of source".〔(【引用サイトリンク】title=The Academy Color Encoding System )
The system has defined its own color primaries that completely encompass the visible spectral locus as defined by the CIE xyY specification. The white point is approximate to the CIE D60 standard illuminant, and ACES compliant files are encoded in 16-bit half-floats, which are valid in the range -65504.0 to +65504.0 thus allowing 33+ stops of scene-referred relative exposures. 〔
The system is in 'trial' use and has been implemented by multiple vendors, and used on several motion pictures and television shows. Development work continues and several part of the system have already been standardized by the Society of Motion Picture and Television Engineers (SMPTE) standards body. Information within this article is subject to change and may not accurately reflect the current ACES specifications.
==Background==
The ACES project began its development in 2004 in collaboration with 50 industry technologists. The project began due to the recent incursion of digital technologies into the motion picture industry. The traditional motion picture workflow is based on the foundation of film capture, this is however increasingly not the case, images are coming from a variety of both digital and film sources. The ACES system is an effort to control the complexity inherent in managing a multitude of file formats, image encoding, metadata transfer, color reproduction, and image interchanges that are present in the current motion picture workflow.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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