Image and Video Processing in the Compressed Domain

As more images and videos are becoming available in compressed formats, researchers have begun designing algorithms for different image operations directly in their domains of representation, leading to faster computation and lower buffer requirements. Image and Video Processing in the Compressed Domain presents the fundamentals, properties, and applications of a variety of image transforms used in image and video compression. It illustrates the development of algorithms for processing images and videos in the compressed domain. Developing concepts from first principles, the book introduces popular image and video compression algorithms, in particular JPEG, JPEG2000, MPEG-2, MPEG-4, and H.264 standards. It also explores compressed domain analysis and performance metrics for comparing algorithms. The author then elucidates the definitions and properties of the discrete Fourier transform (DFT), discrete cosine transform (DCT), integer cosine transform (ICT), and discrete wavelet transform (DWT). In the subsequent chapters, the author discusses core operations, such as image filtering, color enhancement, image resizing, and transcoding of images and videos, that are used in various image and video analysis approaches. He also focuses on other facets of compressed domain analysis, including video editing operations, video indexing, and image and video steganography and watermarking. With MATLAB® codes on an accompanying CD-ROM, this book takes you through the steps involved in processing and analyzing compressed videos and images. It covers the algorithms, standards, and techniques used for coding images and videos in compressed formats.

Image and Video Compression: An OverviewCompression: Generic ApproachesMotivation for Processing in the Compressed DomainOverview of Different Image and Video Compression Techniques and StandardsImage Compression TechniquesVideo Compression TechniquesExamples of a Few Operations in the Compressed DomainIssues and Performance Measures Image TransformsOrthogonal Expansion of a Function Transforms of Discrete FunctionsTransforms in 2-D Space Image Filtering Linear Shift Invariant (LSI) Systems Discrete LSI Systems Filtering a Finite Length SequenceBlock FilteringFiltering 2-D ImagesApplication of Filtering Color ProcessingColor RepresentationColor SpaceProcessing Colors in the Compressed DomainColor Saturation and DesaturationColor ConstancyColor Enhancement Image ResizingImage Halving and Image Doubling in the Compressed Domain Resizing with Integral FactorsResizing with Arbitrary Factors Hybrid Resizing TranscodingInter Ttransforms Conversions Image Transcoding: JPEG2000 to JPEG Video Downscaling Frame SkippingVideo TranscodingError Resilient Transcoding Image and Video AnalysisImage and Video EditingObject RecognitionImage RegistrationDigital WatermarkingSteganographyImage and Video Indexing Bibliography Index A Summary appears at the end of each chapter.

Jayanta Mukhopadhyay is a professor and head of the Department of Computer Science and Engineering and the School of Information Technology at the Indian Institute of Technology in Kharagpur. He has held visiting positions at the University of California-Santa Barbara, the University of Southern California, and the National University of Singapore. He was also a Humboldt Research Fellow at the Technical University of Munich in 2002. Dr. Mukherjee is a senior member of the IEEE and a fellow of the Indian National Academy of Engineering. His research interests encompass image processing, pattern recognition, computer graphics, multimedia systems, and medical informatics.