Photoshop convert to 8 bit how to#
Photoshop convert to 8 bit software#

In Graphic software (like Photoshop, illustrator etc.), the 256 individual color value is represented as integers 0-255 (internally, this is binary 00000000-11111111 to the computer).Īs we have have calculated earlier, 8 Bit images have more than 16.7 million color possibilities. Total Color Possibilities = (Total color values of Red) x (Total color values of Green) x (Total color values of Blue) To calculate the total color possibilities for a RGB, 8 Bit document, we have multiply these values together.Īs Colors in RGB Color Mode are formed as a result of combining these three color components. Green channel color value = 2 8 = 256 values of Greenīlue channel color value = 2 8 = 256 values of Blue Hence, Red channel color value = 2 8 = 256 values of Red, Hence, each pixel will have 24 Bit of color information.Ĩ Bit = 2 8 = 256 colors per color channel By default all Graphic Software work in 8 Bit document setting.Īs discussed above 8 Bit will represent 8 Bit of color information in each color channel present in the Color Mode. We already that RGB has three color channels, namely, Red, Green and Blue. I have chosen RGB, being the most popular and used Color Mode, to show the relationship between Color Modes and Bit. Where, n = number of bits & 2 came from the total values possible for a single bit.ĭepending on the quality of your monitor, you can probably only display differences up to 8-10 bits. In general, the number of possible choices are 2 raised to the number of bits. When you combine 2 Bits then you can have four possible values (00, 01, 10, and 11).

Photoshop convert to 8 bit how to#

How to calculate number of Colors with BitĪ single Bit has 2 possible values, 0 or 1.

1 Bit – 2 colors 2 Bit – 4 colors 4 Bit – 16 colors 8 Bit – 256 colors 24 Bit – 16,777,216 colors Image in different number of bits Try to work in 16-bit mode for as long as possible. When we have to make large prints or create HDR photography or care to preserve great range of tonal values, it is wise to work on our images in a 16 bit mode, which gives us greater tonality and color values. Hence, it’s also called as 24 bit image.ġ6 Bit = 65,536 colors per color componentģ2 Bit = 4,294,967,296 colors per color component If we consider a RGB document then 8 Bits of information for Red, 8 Bits of information for Green and 8 Bits of information for Blue.

Most of Graphic software, by default, work on 8 Bit per color channel, providing two options for Color Modes (RGB & CMYK) and default value for Color Profile as per your choice of Color Mode.Ī 8 Bit document generally means 8 Bits of color information per color component or color channel. 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). When referring to a pixel, the concept can be defined as bits per pixel (bpp). The simplest image, 1 Bit image, can only show two colors, black and white. It does not mean that the image necessarily uses all of these colors but that it can instead specify colors with that level of precision. More Bits of information per pixel, result in more available colors and more accurate color representation of an image, thereby also affecting the size of image. Binary system works only with ‘Two’ values either ‘0’ or ‘1’.īit Depth specifies, ‘how much color (tonal) information is available for each pixel in an image’ or ‘color information stored in an image’. The word ‘Bit’ came from two words, ‘Binary’ and ‘Digit’.

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