Cutting, Shifting and Pasting for manipulation in DCT Domain

摘要：

An approach to get the block DCT coefficients from one size to any size at arbitrary position of an image/video frame in the DCT domain directly by simple cutting, shifting and pasting operations is proposed. Many existing approaches, which require the input block(s) to align with the border of the output block, could be considered as special cases of the proposed approach. The practicality of the approach is illustrated by an example where an image can be resized arbitrarily in the DCT domain directly.

关键词： Cutting shifting pasting block DCT resizing

作者: Sun Shuifa Wan Junli Zheng Sheng Sam Kwong

作者单位: College of Electrical Engineering and Information Technology,China Three Gorges University,Yichang 4 College of Electrical Engineering and Information Technology,China Three Gorges University,Yichang 4 College of Electrical Engineering and Information Technology,China Three Gorges University,Yichang 4 Department of Computer Science,City University of Hong Kong,Kowloon,Hong Kong SAR China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）