Converting raster to vector graphics
Raster graphics are the pictorial imaging graphics produced by most commercial cameras, scanners and drawing tablets. The images are comprised of arrays of small screen areas (lighted pixels) or printed dots. Each pixel or dot is associated with a value for tint and shade. High resolution raster files can produced high quality imagery and are easily transmitted through line by line transmission.
The raster graphics system is great for reproducing surfaces of color and texture, which makes the system work very well for photography. However, the system is not good for reproducing lines. The raster line is a series of pixels, really a narrow version of a surface. Raster graphics are not easily scalable. When a raster image is enlarged, the pixels comprising the image are either made larger or separated so that edges become jagged or pixilated.Read More