What Is Color Depth?
Color depth (Color Depth) can also be called color bit depth, which is a unit that uses the number of bits to represent the number of colors in a digital image. A bit is a binary unit (or bit) calculated by a computer, that is, the most basic data or message that a computer can process.
Color depth
discuss
- Chinese name
- Color depth
- Foreign name
- Color Depth
- Alias
- Color bit depth
- display method
- Exponent of 2
- Function
- Measure the color enhancement performance of dye pigments
- Color depth (Color Depth) can also be called color bit depth, which is a unit that uses the number of bits to represent the number of colors in a digital image. A bit is a binary unit (or bit) calculated by a computer, that is, the most basic data or message that a computer can process.
- Color depth is represented by a power of two index. The higher the number of bits, the higher the color depth value, and the more colors the image can represent.
- A 1-bit image is a power of 2 (= 2) and can only represent black and white colors. A 2-bit image is a square of 2 (= 4) and can represent 4 colors, so in addition to black and white, it can also represent two gray tones between them. A 3 bit image is a power of 2 (= 8), which means that in a black and white or grayscale photo, it can show 8 colors including black and white.
- According to the above calculation method, a 24-bit image can display 16,777,216 colors, which is very close to the color that the human eye can distinguish, so it is called True color. Moreover, 24-bit color depth has become the most basic requirement for current color scanners, and the highest has reached 36-bit or 48-bit.
- Color depth is a comprehensive color perception of object colors that mainly depends on the lightness of object colors and is related to hue and chroma. This color characteristic is widely used in dyes, pigments and related applications. It is the basis and intermediate physical quantity of the dyeing intensity comparison of dyes and pigments. It is also commonly used to measure the color enhancement performance of dyes and pigments.