1. Bitmap and Vector Graphics

2. Bitmap Graphics Photos Scanned Images Animations Most pictures you find on the Internet Photos are JPG files – lots of colours Animations and some cartoons are GIFs – fewer colours, smaller files

3. Bitmap and Vector Graphics Bitmaps Made from a series of small dots. Like graph paper with squares filled in to form an image.

4. Bitmap and Vector Graphics What’s the problem? When bitmaps are enlarged – you lose quality.

5. Bitmap and Vector Graphics What’s the problem? Cartoons and GIF animations become pixelated – this means you can see the outline of the squares used to make the picture.

6. Bitmap and Vector Graphics What’s the problem? Photos appear blurry

7. Bitmap and Vector Graphics Vector Graphics Vector graphics are stored in the computer using the mathematical information about the lines, curves, colours etc. Most windows clipart (with a WMF file extension) is a vector graphic. AutoShapes are also vector graphics.

8. Bitmap and Vector Graphics What’s so great about vectors? They can be enlarged with no loss of quality

9. Bitmap and Vector Graphics This is a vector image created in Fireworks

10. Bitmap and Vector Graphics When should you use each? Photos and scanned images will always be bitmaps. If you want subtle changes in colour, use bitmaps. If the image must work in different sizes, use vectors.

11. Bitmap and Vector Graphics Bitmaps & Vectors in Fireworks Oval & Square Marquee Magic Wand Pencil Paintbrush Lasso Tool Eraser Sharpen & Blur Rubber Stamp & Red-Eye Removal Bitmap Tools Vector Tools Line Shapes Freeform Pen & Vector Path Text Knife

12. Bitmap and Vector Graphics File Extensions.bmp.jpg.gif.png.wmf.mix Bitmaps Vectors Joint Photographic Group Graphics Interchance Format Windows Metafile Format

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