Compression Station Practice

Makes the file smaller by deleting parts of the file permanently (forever)

• Lossy Compression
• Lossless Compression

Makes the file smaller by giving repeated patterns/colours a specific code

• Lossy Compression
• Lossless Compression

What would you use compression for?

• Making an image file smaller
• Modifying an image 

Lossless compression permanently deletes the data

• True

• False

Compression looks for _______ data

• Unnecessary

• Repeated

Select the advantages for lossy compression

• Makes the file much smaller

• Will send much quicker

• A very simple algorithm

• The quality will not be affected much

Select the advantages for lossless compression

• Makes the file much smaller

• Will send quicker

• A very simple algorithm

• The quality will not be affected much

You would use ______ compression if you still needed to have a high quality image

• Lossy

• Lossless

You would use ______ compression if space was more important than quality

• Lossy

• Lossless

Which form of comression would you use to save data when you transmit text messages and you don't want to lose information?

• Lossless Compression
• Lossy Compression
• Reversible Encryption
• Compression Encryption