A | B |
Graphics | anything on the page that is not actual text, from simple line drawings to fully active images found on the World Wide Web. |
Color Depth | The number of bits per pixel that can be displayed on a computer screen. |
Compression | refers to how the image is stored |
Lossless | Reduces the file size without losing any pixel information |
Lossy | The more the image is reduced, the more the quality is degraded |
Portability | How easily you can open, modify, and view the files using different operating systems and software and browsers. |
Transparency | Allows the background color of an image to be replaced or changed so that the graphic can blend into the background. |
Raster Graphics | Have a fixed resolution and cannot be resized without altering image quality |
GIF | Animation – Standard format on web for animation |
JPEG | Standard use for desktop publishing |
BMP | Common uses for editing raster graphics, creating icons and wallpapers, and screen display |
PNG | Replaces GIF and TIFF. Allows for online viewing of images and websites |
Vector Graphics | graphics created from mathematical formulas used to define lines, curves, and nodes (drawing points) |
Vector Advantages | Resolution independent – regardless of how much the image is enlarged or reduced, the image definition and quality remain the same |
Vector Disadvantages | Lower color quality than raster images, and not good for photographs |