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Graphics
| term | definition |
|---|---|
| Rastor Graphic | a dot matrix data structure that represents a generally rectangular grid of pixels, |
| Vector Graphics | computer graphics images that are defined in terms of 2D points, which are connected by lines and curves to form polygons and other shapes. |
| GIF | a bitmap image format that was developed by a team at the bulletin board service provider CompuServe led by American computer scientist Steve Wilhite |
| JPEG | a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. |
| PNG | a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format, and is the most widely used lossless image compression format on the Internet. |
| BMP | a raster graphics image file format used to store bitmap digital images, independently of the display device (such as a graphics adapter), especially on Microsoft Windows. |
| Pixel | a minute area of illumination on a display screen, one of many from which an image is composed. |
| Dots per inch | Dots per inch is a measure of spatial printing or video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch. |
| cropping | removal of unwanted outer areas from a photographic or illustrated image. |
| resizing | alter the size of (something, especially a computer window or image). |
| Aspect Ratio | the ratio of the width to the height of an image or screen. |
| Resampling | reducing or increasing its number of pixels. An image can also be resized for printing without resampling and altering its physical structure. |
| Image map | a list of coordinates relating to a specific image, created in order to hyperlink areas of the image to different destinations |
| hot spot | an ad hoc wireless access point that is created by a dedicated hardware device or a smartphone feature that shares the phone's cellular data. |
| Thumbnail | A thumbnail image is a small image that represents a larger one. Thumbnails are often used to provide snapshots of several images in a single space. |
| Resolution | a measure used to describe the sharpness and clarity of an image or picture and is often used as a metric for judging the quality of monitors, printers, digital images and a various other hardware and software technologies |
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