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An Efficient Approach to the Reduction of Mosquito Noise for the JPEG/JPEG2000 Decoded Image by Using Epsilon Filter

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The JPEG (joint photographic experts group) compression algorithm is possible to decode an image effectively, by considering the visual characteristic of human beings. The mosquito noise generates in the block, when a compression rate of the JPEG is high. On the other hand, the block noise is not generated in the JPEG2000 decoded image because an algorithm of the JPEG2000 based on DWT (discrete wavelet transform). However, the mosquito noise appears to a high compressed image by using the JPEG2000. We lose not only the mosquito noise but also some important image information, when the usual noise reduction filter is applied for a JPEG/JPEG2000 decoded image including the mosquito noise. As a result, the image quality worsens.

In this paper, we propose an efficient algorithm which reduces the mosquito noise of the JPEG/JPEG2000 decoded image by using ε-filter. We confirmed that our proposed method was effective by the computer experiments.

Document Type: Research Article

Publication date: 2002-01-01

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  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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