期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2011
卷号：2
期号：3(Version 1)
出版社：Ayushmaan Technologies
摘要：Advanced technologies have increased demands for visual information and higher quality video frames, as with 3-D movies, games, and HDTV. This taxes the available technologies and creates a gap between the huge amount of visual data required for multimedia applications and the still-limited hardware capabilities. Image and Video Compression for Multimedia engineering bridges the gap with concise, up-to-date video and image coding information. With the growing popularity of the applications that use large amounts of visual data, image and video coding is an active and dynamic field. . Image and Video Compression for Multimedia Engineering builds a basis for future study, research, and development. This paper proposes novel and high performance architecture for image compression which is based on the frequency domain representation. The digitized image is compressed using Discrete Hartley Transform (DHT), Discrete Walsh Transform (DWT), Discrete Fourier Transform (DFT), and Discrete Radon Transform (DRT) and their combinations with DHT. Discrete Hartley Transform is used as basic transform because of its reversibility, hence other transform kernels can developed from DHT. The proposed architecture is developed using Verilog Hardware Descriptive Language and has been tested for still images. Simulation Results show the hybrid transforms DHT+DCT and DHT+DRT give better results with respect to compression ratios.
