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Compression Framework

Module by: Elliot Ng, Danny Blanco, Charlie Ice, Bryan Grandy. E-mail the authors

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Compression

Compression Framework

There are many picture file formats to save images to, however much of the research in steganography is done using the JPEG format. JPEG is a very common and uses a relatively straightforward compression algorithm. Although there are several JPEG compression scripts written for MATLAB, customizing them for our purposes and getting the output to work with the JPEG format would have shifted the focus of our project from steganography to implementing JPEG compression. Thus we decided to implement our own custom image framework that would be similar to JPEG but much more straightforward.

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Definition of a lens

Lenses

A lens is a custom view of Connexions content. You can think of it as a fancy kind of list that will let you see Connexions through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to Connexions materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual Connexions member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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