Image and Video Processing in the Compressed Domain

Jayanta Mukhopadhyay

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商品描述

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.

商品描述(中文翻譯)

隨著越來越多的圖像和視頻以壓縮格式提供,研究人員開始在其表示領域中直接設計不同圖像操作的算法,從而實現更快的計算速度和更低的緩衝需求。《壓縮領域中的圖像和視頻處理》介紹了在圖像和視頻壓縮中使用的各種圖像變換的基礎、特性和應用。它展示了在壓縮領域中處理圖像和視頻的算法的發展。

本書從基本原理開始介紹了流行的圖像和視頻壓縮算法,特別是JPEG、JPEG2000、MPEG-2、MPEG-4和H.264標準。它還探討了壓縮領域分析和性能指標,用於比較算法。然後,作者闡明了離散傅立葉變換(DFT)、離散餘弦變換(DCT)、整數餘弦變換(ICT)和離散小波變換(DWT)的定義和特性。在接下來的章節中,作者討論了核心操作,如圖像濾波、色彩增強、圖像調整大小以及圖像和視頻轉碼,這些操作在各種圖像和視頻分析方法中使用。他還關注壓縮領域分析的其他方面,包括視頻編輯操作、視頻索引和圖像和視頻隱寫和水印。

本書附帶了一個CD-ROM,其中包含MATLAB®代碼,帶您進行處理和分析壓縮視頻和圖像的步驟。它涵蓋了在壓縮格式中編碼圖像和視頻所使用的算法、標準和技術。