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Journal of Shanghai University（Natural Science Edition）

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Window-Scaling: An Improved Image Scaling Algorithm Using Bilinear Interpolation

ZUO Xiao1,RAN Feng2,XU Mei-hua2   

  1. 1. Key Laboratory of Advanced Displays and System Application, Ministry of Education, Shanghai University, Shanghai 200072， China;
    2. Microelectronic R&D Center, Shanghai University, Shanghai 200072, China

  • Received:2005-07-19 Revised:1900-01-01 Online:2006-06-30 Published:2006-06-30
  • Contact: RAN Feng2

Cited

2

Abstract:

In this paper, we discuss a bilinear interpolation and window-scalingalgorithm for image scaling. The proposed algorithm using a bilinear method has a good high frequency response. Different algorithms including nearest interpolation are compared. Hardware implementation of the proposed algorithm is achieved with FPGA. It has been shown to have a good scaling property with low hardware consumption.

Key words: FPGA implementation, image scaling, window-scaling, bilinear interpolation