Chapter Questions
Explain the difference between lossy and lossless image compression,
Give definitions of:(a) Image entropy(b) Image redundancy(c) Compression ratio
How can image entropy be used to determine information redundancy?
Draw a diagram of image compression/transmission/decompression - include all main steps.
Explain the basic idea of image compression using discrete image transforms.
Explain the basic idea of predictive image compression.
Explain the basic idea of image compression based on vector quantization.
What are symmetric and asymmetric image compression applications?
Explain the concept of progressive image transmission and smart compression.
Explain the basic idea of fractal image compression.
What is the basic idea of Huffman coding?
What kind of image data can be compressed using the JPEG and MPEG compression algorithms?
What are the four compression modes avallable in the JPEG compression standard? Describe the algorithm employed in each of the four modes.
What are the main differences between original JPEG and JPEG-2000 compression schemes?
What image data are the three most frequently used MPEG standards applied to?
Explain the roles of the I-, P-, B- frames in MPEG compression.
MPEG compression - why are individual frames in an image sequence compressed using different approaches?