Geek-of-All

A bitmap is one of many types of file formats for images stored in a computerized form. It carries the extension .BMP . Computers use bits of 1 and 0 to store data. A bitmap is literally a map of bits that form a particular picture when rendered to a display like a computer monitor . To understand how a bitmap image displays, it’s important to understand the computer display screen. The display is made up of rows and columns of tiny blocks, or pixels . In a bitmap image, each pixel is assigned at least one bit to indicate whether the pixel should reflect the background color, the foreground color, or some other color. In the case of a page of black and white text, let’s consider a single letter. The many pixels that make up that letter only require one bit of data each. Either the pixel will be black or white: 1 or 0. When a bitmap displays a colored image, such as a lake scene, there are several shades of gradation in colors and lighting. In this case, each pix...

Codec stands for Co der- Dec oder (some say Co mpressor- Dec ompressor) and is used to describe anything which turns data into another form for storage or transmission, then changes it back for use. In traditional broadcasting, a codec is a physical device which turns analog video and audio data into digital form to be sent out over the air. It is also capable of turning received digital information back into an analog format. In computers, a codec is used as a way of compressing video, images and audio to a more manageable size. The majority use a lossy(Not all the data can be recovered from the file when decompressed) method of compression, but some are lossless. Lossless codecs, such as MSU or Huffyuv, reproduce the original video exactly, with no subsequent loss if the video is re-encoded. The more common lossy codecs lose varying degrees of information, but can save substantial amounts of space. A lossy codec may be transformative, predictive, or a comb...