Researchppt
- 1. Presentation
- 2. Vector and Bitmap Images Vector Images: Suitable for logos and line drawings Can be rescaled without losing clarity Bitmap Images: Used for photographic images Divides the image into a grid The image cannot be easily resized
- 3. GIF and JPEG Images GIF: Can only contain up to 256 colours Good for saving diagrams and basic pictures JPEG: Used for photo-realistic images Information is lost each time it is saved
- 4. Imbedded Graphic and Linked Graphics By default graphics are pasted into a word or PowerPoint document by being imbedded Imbedded graphics take up more file space than if the image has firstly been compressed and imported
- 5. Colour Palettes It’s a is a designated subset of the total range of colours supported by a computer graphics system A 24 bit image An 8 bit image
- 6. Lossless Compression A class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data Used in ZIP file format PNG and GIF use only lossless compression
- 7. PNG Files Portable network graphics files that will overcome many of the problems with GIF or JPEG files They don’t support animations Provides high colour
- 8. Using .bmp Format Files in Work The size is large Uses up lots of memory
- 9. Flickr An online community which acts as a platform for sharing photos Members can rate and comment on all photos Can be used academically as well as recreationally