To work successfully in any graphics package, a designer need to have a fundamental understanding of raster images versus vector images. Raster images are created through the process of scanning source artwork or "painting" with a photo editing or paint program. A vector image is a collection of connected lines and curves that produce objects and created through the process of drawing with vector based program.
Now, let see the different :
| Raster Images | Vector Images | |
| Resolution | Expressed in terms of the dots per inch or dpi(pixels). | Defined by math, not pixels. |
| File Size | Huge file sizes. Higher resolutions (dpi) and greater color depths, produce bigger file sizes. | Very small in file size because do not need to keep track of each individual pixel in an image, only mathematical descriptions. |
| File Format | BMP (Windows Bitmap), PCX (Paintbrush), TIFF (Tag Interleave Format), JPEG (Joint Photographics Expert Group), GIF (Graphics Interchange Format) , PNG (Portable Network Graphic), PSD (Adobe PhotoShop) and CPT (Corel PhotoPAINT | EPS (Encapsulated PostScript), WMF (Windows Metafile), AI (Adobe Illustrator), CDR (CorelDraw), DXF (AutoCAD), SVG (Scalable Vector Graphics) and PLT (Hewlett Packard Graphics Language Plot File) |
| Based Program | CorelPhotoPaint, Adobe Photoshop | CorelDraw, Adobe Illustrator |
| Advantage | - Accurately reproduce the original source artwork. - Raster effects (ie drop shadows, glows and some transparency interactions). | - Scale up or down without the loss of image quality. - Easy coloring. |
Have a nice day!
Write by Arafa Daming
