Term | Definition |
Adobe Illustrator | (AI)vector image format created in the Adobe Illustrator |
bitmap | an image composed of pixels with a fixed resolution |
bmp | an uncompressed bitmap file format that is very large and is not appropriate for the web |
brightness | the measure of relative lightness or darkness of a color (measured as a percentage from 0% [black] to 100% [white]) |
compression | encoding data to take up less storage space and less bandwidth for transmission |
feathering | special formatting style that blurs the edge of an image |
Graphics Interchange Format | (gif)compressed bitmap file format (lossless) that supports only 256 colors and is appropriate for the web; supports transparency and animation |
Joint Photographer Experts Group | (jpg)a compressed bitmap file format (lossy) that is preferred for photographs; supports 16 million colors and is appropriate for the web; does not support transparency or animation |
layering | a feature that allows you to place one image on top of another and edit each independently |
lossless | a compression formula that reduces the file size without data loss |
lossy | a compression formula that reduces the file size by removing certain pixels |
masking | hiding part of a layer so that you can manipulate only the visible parts of the layer |
Portable Network Graphics | (png)compressed bitmap file format (lossless) similar to the gif format; it is not limited to 256 colors, is appropriate for the web, and supports transparency |
rasterize | converting vector objects in an image to raster (bitmap) content |
red eye reduction | a photo editing technique to remove the red from the eye |
shape | a design element that includes geometric, natural, or abstract shapes |
special effects | the effect or impression used to produce materials that cannot be achieved by normal techniques |
Tagged Image File | (tif)uncompressed bitmap file format that supports 16 million colors; supports transparency, file size is very large, and is not appropriate for the web |
text | a multimedia element consisting of alphanumeric characters |
transparency | a visual quality in which a distant image or element can be seen through a nearer one |
unzip | decompressing a zipped file |
vector | an image created by using a series of mathematically defined lines and curves rather than pixels, making the image easier to rescale; also called draw-type graphics |
Windows Metafile | (wmf)Microsoft's vector file format; most Microsoft clip art are metafiles and can be edited |
zip | compressing files to reduce file size |