Compression Techniques and Multimedia Packaging

Multimedia is....

• is the process of reducing/diminishing the storage size of any data or file so that it consumes less space on the disk.

• is the presentation of information

  using the combination of multimedia components,

  such as text, audio, video, images and animation.

• the basic idea is to break an image down into smaller and smaller tiles ("плитки")

It is the process of reducing/diminishing the storage size of any data or file so that it consumes less space on the disk. It is the technique of modifying, restructuring, encoding and converting the schema or any data to reduce its size.

What are the two types of compression?

• Lossy

• Lessy

• Loosy

• Lossless

It's a technique that involves only a certain/small amount of elimination of data (5mb -> 2/3 mb)

• Lossy

• Lossless

What are basic compression techniques? (several answers)

• Null Compression

• Keyword Encoding

• Lempel Ziv Welch

• Hoffman Redecoding

• Velvet Transform

Draw approximately how the cosine wave looks like

Why to compress?

• It helps to reduce the size of data that is required to store on the disk

• It saves 100% quality and reduces the size of the file

• It helps programmes to reset their storage

• It saves time in data transmission

  as the size is reduced to an extent

  (but the quality suffers as well)