Lossless- discard no information Lossy- some degradation in image to reduce size
File types-
- Tiff- lossy or lossless-cameras
- PNG- lossless, for patterns- transparency
- GIF- compress colours, lossy- if has fewer than 256 colours- transparency
- JPG- photgraphs, lossy-on websites
- RAW- lossless, convert to TIFF, PNG or JPG
- BMP-no reason to use this
- PSD- photoshop
- PSP-Paint shop pro
Vector- text, shapes on photoshop Bitmap/Raster- photos
RGB- Light CMYK- print Grayscale- 8 bit model has white black and 254 shades in-between
Websafe colour- 256 colours or 8 bit colour Animated GIF- still images in a timed sequence
Dithering- reduce the amount of colours Pixels- picture elements D/PPI- Dots/ per inch Moniter display 72 ppi or 72 X 72
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