|
|
Reference
Glossary
BitmapA bitmap is a mapped array of pixels
that can be saved as a file. Both JPEG and GIF are bitmap graphic formats.
Currently, the only other way to store an image is as a vector graphic. You
can't easily scale bitmap images, but you can control every single pixel
and thus achieve many effects impossible in vector graphics. Conversely,
vector formats offer advantages of scalability and lower bandwidth
requirements. When you compress a bitmapped image, you suck out some of the
visual information. To bypass this, the portable network graphics format (or
PNG, pronounced "ping") was designed to store a single bitmap image for
transmittal over computer networks without losing this data.
|
|
|
