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本帖最后由 bluejd 于 2016-4-10 14:28 编辑
另外HDR10 Media Profile中的SMPTE ST 2084(高动态范围影像EOTF电光转换函数)也是来源于Dolby公司
Dolby Perceptual Quantizer (PQ), published by SMPTE as SMPTE ST 2084, is a transfer function that allows for the display of high dynamic range (HDR) video with a luminance level of up to 10,000 cd/m2 and can be used with the Rec. 2020 color space. On August 27, 2015, the Consumer Electronics Association announced the HDR10 Media Profile which uses the Rec. 2020 color space, SMPTE ST 2084, and a bit depth of 10-bits.
According to the CEA's Video Division Board, a TV, monitor or projector may be referred to as an HDR Compatible Display if it meets the following criteria:
1. It must have at least one interface that supports HDR signaling as defined in CEA-861-F, as extended by CEA-861.3.
2. It must receive and process static HDR metadata compliant with CEA-861.3 for uncompressed video.
3. It must receive and process HDR10 Media Profile* from IP, HDMI or other video delivery sources. Other media profiles may also be supported.
*The HDR10 Media Profile is defined as
a) EOTF: SMPTE ST 2084;
b) Color Sub-sampling: 4:2:0 (for compressed video sources);
c) Bit Depth: 10 bit;
d) Color Primaries: ITU-R BT.2020;
4. It must apply an appropriate Electro-Optical Transfer Function (EOTF), before rendering the image. |
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