formula to find compression ratio when bits per pixel is given
30kb = ? pixel?
256, 8 bits per pixel = 2^8 colours.
24 bits/pixel: one byte for red, one byte for green, one byte for blue.
Most modern digital cameras use 24 bits (8 bits per primary) to represent a color. But more or less can be used, depending on the quality desired. Many early computer graphics cards used only 4 bits to represent a color.
141750
No, they are shape based and do not have pixel bits.
You can represent a maximum of 2^24 colors in RGB. This equals to 16777216 possible colors.
Typical uncompressed colored images use 24 or 32-bits per pixel of an image (RGB 8-bits per color). After some basic math of lets say an 8 Megapixel image quickly becomes a very large file on a computer. A type of compression used is to select some colors (typically called a palette) and for every pixel in the original image select a color in the palette that is closest to it (some other techniques exist to make it more accurate, ie dithering). If the palette of colors is smaller than 256 colors than a single byte (8 bits) is all that is needed per pixel to indicate what color in the palette should belong at that pixel.
Data compression allows for encoding information by using fewer bits.
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A bitmap is a series of bits which represents a rasterized graphic image, each pixel being represented as a group of bits.
They will require 24 bits per second to 30 frames each second.