| A | B |
|---|
| Graphics | Anything on a page that isn't actual text, incluses simple drawings to fully active images found on the Internet |
| Factors that Affect Graphic Choice | Color Depth, Compression. Portability, Transparency |
| Color Depth | The number of colors per pixel that can be displayed in an image |
| Compression | How an image is saved in order to reduce the size |
| Lossless | No data is lost during compression |
| Lossy | Some data is lost during compression |
| Portability | Ease at which files are opened, modified & viewed on computers using different operating systems, software & browsers |
| Transparency | The background without having a white box around it |
| Raster or Bitmap Graphics | Images composed of grids of pixels that have a fixed resolution (# of pixels per inch) & cannot be resized without losing image quality. Generally edited in paint programs. |
| GIF (Graphics Interchange Format) | Commonly used for clip art, animations, icons, logos, simple diagrams, line drawings, graphics with large blocks of single color, graphics with transparent areas, graphics displayed on computer screens. |
| JPEG (Joint Photographic Experts Group) | Commonly used for desktop publishing images, photos & natural artwork, scanned images, emailing photos, & digital camera photos |
| BMP (Bitmap) | Commonly used for editing raster graphics & creating icons and wallpaper |
| PNG (Portable Network Graphic) | Commonly used for replacing GIF & TIFF images and used for online viewing of images |
| TIFF (Tagged Image File Format) | Commonly used for storing raw bitmap data by some programs & devices such as scanners, high resolution printing, storage for faxes & other digital images |
| Vector Graphics | Composed of mathematical formulas that define lines, shapes & curves |
| Common uses of Vector Graphics | Cartoons & clip art, Internet websites, Fonts, Specialized text effects & Graphics that will be scaled or resized such as architectural drawings, CAD programs, flow charts, & logos that need to be displayed in various sizes without degrading quality |
| Resolution Independent | Regardless of how much the image is enlarged or reduced, the image definition & quality remain the same |
| AI | Adobe Illustrator |
| CDR | Corel Draw |
| DXF | AutoCad |
| EPS | Encapsulated Postscript (meta graphic) |
| PLT | Hewlett Packard Graphics Language Plot File |
| SVG | Scalable Vector Grphics |
| WMF | Windows Metafile, common format for windows clipart |
| Resolution | The amount of detail stored for an image. The higher the resolution, the higher the level of detail |
| PPI | Pixels in one inch (The more pixels per inch means better image quality but larger file size) |
| DPI (Dots per inch) | Dots of ink or toner in a printed image, the lower the DPI the less detailed the image |
| Aspect Ratio | Relationship of an objects width to its height |
| Cloning | Copying part of an image & using it to replace unwanted parts of the image |
| Cropping | Removing a part of an image. The original image remains the same & the cropped image can be saved as a new object |
| Filters | Used to apply special affects to an image |
| Gradients | Filling an object with a smooth transition from one color to another |
| Layering | Compiling multiple pictures or objects together into one image. Layers can be turned on or off & elements can be colored, layered, & resized individually |
| Patterns & Textures | Raster graphics applied as a fill, used to create filters & backgrounds |
| Rotating | Pivoting an object around its center point |
| Transparency | Removing the background color of a raster image making it "see-through" in order to allow the image to blend in with its background |
