16,772,216 Colors
16.7 million. 24 bit is also referred to "True Color".
For a digital photo, bit depth is the number of colors that can be shown in the image. Because the bits can only indicate one of 2 possible states (0 or 1), the number of colors can only be powers of 2. Some examples of bit depths (and the calculation of the decimal number for those of you who know exponents) for image files are: 2-bit (2^2 = 4 colors), 4-bit (2^4=16 colors), 8-bit (2^8=256 colors), 16-bit (2^16=65,536 colors), and 24-bit (2^24=16,777,216 colors).
A 32 bit per pixel bitmap will have 8 bits each for red green and blue, and 8 bits for alpha level. So 2^24 colors.
65,536 colors
16,772,216 Colors
A 24-bit video adapter can display roughly 16 million different colors.
PNG files can be 24 bit per pixel or 32 bit per pixel. The 24 bit variety stores 2^24 or 16777216 colors. The 32 bit variety stores 2^32 or 4294967296 different colors.
16.7 million. 24 bit is also referred to "True Color".
A 24-bit video adapter can display roughly 16 million different colors.
For a digital photo, bit depth is the number of colors that can be shown in the image. Because the bits can only indicate one of 2 possible states (0 or 1), the number of colors can only be powers of 2. Some examples of bit depths (and the calculation of the decimal number for those of you who know exponents) for image files are: 2-bit (2^2 = 4 colors), 4-bit (2^4=16 colors), 8-bit (2^8=256 colors), 16-bit (2^16=65,536 colors), and 24-bit (2^24=16,777,216 colors).
You are actually asking how many colors are possible in 8 bit per channel. 8 bit per channel means 256 colors, 1 bit= 2 colors, 2 bits= 4 colors, 3 bits= 8 colors, 4 bits= 16... 8bits= 256 colors. Since we have 3 channels in RGB color mode: Red, Green and Blue that means that we have 3x8= 24 bits per pixel in an image. 3x8 also means 256x256x256 colors possible. Number of possible colors in 8 bit per channel or 24 bits per pixel image is 256x256x256 colors or in particular exact number of possible colors is 16777216.
The 32-bit color offered by many current operating systems is actually 24-bits of color with 8-bits allocated to an alpha channel or data. This results in a color depth of 16,777,216 different colors. It is said that the human eye can only distinguish between 10 million different colors.
Jpeg supports up to 24 bit RBG (2^24 colors).
A 32 bit per pixel bitmap will have 8 bits each for red green and blue, and 8 bits for alpha level. So 2^24 colors.
24
65,536 colors