image compression skills: none it concepts: effect of image compression this work is licensed under...
Post on 21-Dec-2015
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Image compression
Skills: none
IT concepts: effect of image compression
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Where does this topic fit?
• Internet concepts– Applications– Technology– Implications
• Internet skills– Application development– Content creation (images)
75 KB96 KB
51 KB
15 KB
21 KB
11 KB 30 KB
139 KB6 KB
54%69%
37%
11%
15%
8% 22%
100%4%
See the difference?
Original
Compressed,11% of original
8 X zoom
Original
Compressed,11% of original
Good enough?
Original
Compressed,11% of original
Original, 139 KB
Compressed to 4.6 KB
Compressed to 17.9 KB
In another presentation, we mentioned three popular formats for compressed images. Do you recall what they were?
Do you recall which situations each would be used in?
What factors would you consider in deciding how much to compress an image?
How does image compression tie into our discussion of the amount of information in an image?
A few questions
Image compression
Skills: none
IT concepts: effect of image compression
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.