1. Introduction to Graphics
Mr. Brown
Solanco High School

2. Two Graphic Categories
Raster Graphics
Vector Graphics

3. Two Graphic Categories
Categories and file types are picked by programs
Raster file are smaller than vector files

4. Raster Graphics Examples

5. Raster Graphics Examples

6. Raster Graphics Examples

7. Raster Graphics Examples

8. Raster Graphics
Images composed of pixels, show up as dots on the screen
Edited pixel by pixel
Enlarging or reducing causes “jaggies”
File Formats:
PNG, TIFF, BMP, TIF, PCX, JPEG

9. Raster Graphics - Files
TIFF - Tagged Image File Format
Boat.tiff
TIFF supports very large file sizes
BMP - Bitmap
(Paint program)

10. Raster Graphics - Files
JPEG (JPG) - Joint Photographic Expert Group
Supports high resolution images
PNG - Portable Network Graphic

11. Vector Graphics Examples

12. Vector Graphics Examples

13. Vector Graphics Graphics coded by mathematical algorithms or formulas
Resolution is output dependent (printer)
Enlarging or reducing doesn’t degrade the image
File Formats:
PICT, EPS, WMF, CGM, COR

14. Vector Graphics - Files
EPS - Encapsulated Post Script
Boat.eps
Uses postscript printer language
Sharpest and most detailed images

15. Vector Graphics - Files
WMF - Windows Metafile Format
CGM - Computer Graphic Metafile
COR - Corel Draw Graphic

16. Vector Graphics Examples