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Enhancing a Website
Question | Answer |
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Raster Graphic | a graphic made up of pixels aka a bitmap created with image editing programs |
Vector Graphic | a graphic composed of simple lines defined by mathematical equations -- created with draw programs |
GIF (Graphic Interchange Format) | a graphic file format that can save only a maximum of 256 colors |
JPEG (Joint Photographic Experts Group) | a graphic file format that can support millions of colors preferred format for saving photographs |
BMP (Bitmap) | a graphic file format that supports millions of colors and tends to download slowly |
PNG (Portable Network Graphics) | a graphic file format that can support more colors and transparency than GIF files and is currently becoming a more popular format |
Pixel | a single point in a raster image, or the smallest addressable screen element in a display device; smallest unit of picture that can be represented or controlled |
Dots Per Inch (dpi) | a definition of resolution that defines the number of pixels created for every linear inch of an image |
Cropping | to remove portions of an image |
Resizing | change the size of the image as it appears on the screen without changing the file size of the graphic |
Aspect Ratio | the relationship between an image's height and width |
Resampling | changing the number of pixels in a graphic file to match the new screen area occupied by the image; this changes the size of the graphic file |
Image Map | a graphic with clickable areas called hotspots that link to another page or to another area on the same page |
Hotspot | a graphic link to a related page or another area on the current page |
Thumbnail | a small image that links to a larger version of the same image lets users decide if they want to view the larger image, which takes longer to download |
Resolution | number of pixels per inch |