不可一试 发表于 2018-11-2 09:56
下面15楼的帖图已经很明白了，这个Bit Depth指的是传感器上的模数转换（AD）位数（精度）。

飞虹 发表于 2018-11-2 09:42
Color depth
From ※※※※※※※※※, the free encyclopedia
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Color depth
1-bit monochrome
8-bit grayscale
8-bit color
15- or 16-bit color (high color)
24-bit color (true color)
30-, 36-, or 48-bit color (deep color)
Related
Indexed color
Palette
RGB color model
Web-safe color
vte
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.[1][2][3][4] For consumer video standards, such as High Efficiency Video Coding (H.265), the bit depth specifies the number of bits used for each color component.[1][2][3][4] 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 component, bits per channel, bits per color (all three abbreviated bpc), and also bits per pixel component, bits per color channel or bits per sample (bps).[1][2][5] 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 expressed (the gamut). The definition of both color precision and gamut is accomplished with a color encoding specification which assigns a digital code value to a location in a color space.

张咕噜 发表于 2018-11-2 09:30
这么说具体我也不清楚了。但是码率肯定是直接影响色彩深度的，因为实际上传感器记录的就是个亮度信息，色彩是后期算出来的，所以色彩深度实际上就由亮度信息的深度和算法精度共同决定，而亮度信息的深度理论上就是码率吧。

t_dj 发表于 2018-11-1 21:10

有图为证

不可一试 发表于 2018-11-2 09:14
Bit Depth和Color Depth是一回事？！那7年前X100都是22.9bits了，X-T3才16bit色深？你怎么解释呢？

Color depth
From ※※※※※※※※※, the free encyclopedia
Jump to navigationJump to search
Color depth
1-bit monochrome
8-bit grayscale
8-bit color
15- or 16-bit color (high color)
24-bit color (true color)
30-, 36-, or 48-bit color (deep color)
Related
Indexed color
Palette
RGB color model
Web-safe color
vte
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.[1][2][3][4] For consumer video standards, such as High Efficiency Video Coding (H.265), the bit depth specifies the number of bits used for each color component.[1][2][3][4] 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 component, bits per channel, bits per color (all three abbreviated bpc), and also bits per pixel component, bits per color channel or bits per sample (bps).[1][2][5] 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 expressed (the gamut). The definition of both color precision and gamut is accomplished with a color encoding specification which assigns a digital code value to a location in a color space. 本帖最后由 飞虹 于 2018-11-2 09:42 编辑

不可一试 发表于 2018-11-2 09:14
Bit Depth和Color Depth是一回事？！那7年前X100都是22.9bits了，X-T3才16bit色深？你怎么解释呢？

张咕噜 发表于 2018-11-1 21:40
我感觉是一回事

不可一试 发表于 2018-11-1 21:22
Bit Depth不是指色深吧？Color Depth才是色深。

Bit Depth用于表示图像的色彩采样率，它用来确定彩色图像的每个象素可能有的量化精度。

海带 发表于 2018-11-1 19:09
有没有，行不行都要看科技水平。。。

海带 发表于 2018-11-01 19:09

有没有，行不行都要看科技水平。。。