Please I need clear and typed answers to these two questions: Q1)Explain the two types of...

Please I need clear and typed answers to these two questions:

Q1)Explain the two types of file compression? Then determine the best compression strategy suited for: a- Photograph of sailboat on ocean. b- Journal article explaining nanotechnology.

Q2)What are the advantages and disadvantages of Description-Based Encoding and Command-Based Encoding?

Solutions

Expert Solution

1)
There are two types of file compression: Lossy compression and Lossless compression.
Lossy compression does not allow to reconstruct from the compressed data, if any original data is compressed then we can not reconstruct the original data. Lossy compression are used to reduce data size for storage, and transmitting content.
Lossless compression allows the original data to reconstruct from the compressed data, thats why it is known as lossless because no data is lost in such type of file compression. For example, it is used in the ZIP file format and in the GNU tool gzip.

2)
Advantage of Description based encoding: It represents the detailed description of discrete elements that will comprise the media. Detailed editing is supported by this. It represents natural scenes and sound.

Disadvantages of Description based encoding: In this, size of file is very large and loss quality is enlarged.

Advantage of Command based encoding: It is a set of instructions that followed by the computer for producing the digital media. Its size of files are small and also scaled without distortion.

Disadvantages of Command based encoding: It is not appropriate for natural sounds. It requires knowledge of
vector image.

venereology answered 1 year ago

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