Week 4 Compression Comparisons Flashcards
What are GIFs best for?
Logos, Cartoons, Drawings
What are JPGs best for?
Photographs
What are PNG-8 best for?
Logos, Cartoons, Drawings
What are PNG-24/PNG-32 best for?
Photograph images with a need for transparency
What type of compression do GIFs use?
Lossless
What type of compression do JPGs use?
Lossy
What type of compression do PNG-8s use?
Lossless
What type of compression do PNG-24/PNG-32s use?
Lossless
Are GIFs well Supported in Browsers?
All
Are JPGs well Supported in Browsers?
All
Are PNG-8s well Supported in Browsers?
All
Are PNG-24/PNG-32s well Supported in Browsers?
Not on IE6
Do GIFs allow colour transparency?
One COLOUR only
Do JPGs allow colour transparency?
NO
Do PNG-8s allow colour transparency?
One COLOUR only
Do PNG-24/PNG-32s allow colour transparency?
Varying levels of opacity and transparency
Do GIFS support animation?
Yes
Do JPGs support animation?
No
Do PNG-8s support animation?
No
Do PNG-24/PNG-32s support animation?
No
Do GIFs support dithering?
Yes
Do JPGs support dithering?
No
Do PNG-8s support dithering?
Yes
Do PNG-24/PNG-32s support dithering?
No
