色彩深度(colordepth)

最新推荐文章于 2023-09-19 22:15:00 发布

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最新推荐文章于 2023-09-19 22:15:00 发布

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分类专栏： # Image Processing-Base

本文链接：https://blog.youkuaiyun.com/lj695242104/article/details/17766909

色彩深度，又称位深，是指在位图或视频帧缓冲区中表示单个像素颜色所用的位数。它影响了图像可以表达的颜色数量和精度。色彩深度可以通过位/像素（bpp）或位/通道（bpc）来定义，并且是色域表达的两个方面之一，另一个是色域的范围。常见色彩深度包括1位的黑白、8位的256色，以及24位的真彩色等，高动态范围影像则使用超过256色阶来储存更丰富的颜色信息。

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Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video frame buffer, or the number of bits used for each color component of a single pixel.For consumer video standards, such as High Efficiency Video Coding, the bit depth specifies the number of bits used for each color component. When referring to a pixel the concept can be defined as bits per pixel (bpp), which specifies the number of bits used. When referring to a color component the concept can be defined as bits per channel (bpc), bits per color (bpc), or bits per sample (bps). Color depth is only one aspect of color representation, expressing how finely levels of color can be expressed (a.k.a. color precision); the other aspect is how broad a range of colors can be expr