Bit-Mapped Graphics #2

 

 

• BMP — a bit-mapped format which provides a common file format for Windows-based applications. It is used in desktop publishing and graphic processing. It provides a I-to 24-bit colour depth.

• Macpaint — the standard bit-mapped graphics format for Macintosh computers. It supports grey scales and colour.

• FIF (fractal image format) — used mainly in graphic processing and with video capture. It is capable of dealing with resolutions from 8-bit grey scale up to 24-bit colour.

• GIF — (graphics interchange format) — created for viewing online images from the CompuServe network. It is now supported by many graphic processing programs and desktop publishing programs. It uses a colour depth of I to 8 bits.

• JPEG — developed by the Joint Photographic Experts Group. It supports 8-bit grey scale to 24-bit colour. It is currently used in image processing and telecommunications and it may become the future standard.

• PCX — an early file format which is well-supported in almost all paint-type programs. It is used in desktop publishing and graphic processing programs and is capable of dealing with resolutions ranging from 1-bit colour to 24-bit colour.

• TGA — the Targa format. It was originally developed to store high resolution colour video images. It is capable of dealing with resolutions from 16-bit colour up to 24-bit colour.

• TIFF (tagged image file format) — originally designed for importing images into desktop publishing programs. It supports 1-bit colour up to 24-bit colour and is accepted nowadays as a standard graphic image file format.

 

 

A palette is the total range of colours available for display. The colour table contains code numbers for each colour and the combinations of the colours needed.

 

Image resolution and palette size are both related to the size of the bit-mapped frame buffer.

 

Animating high resolution graphics needs a fast and powerful CPU.