Evaluation of effective data reduction methods for MMR coding
β Scribed by Yasuo Kurosu
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 293 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0882-1666
No coin nor oath required. For personal study only.
β¦ Synopsis
To obtain higher speed and higher quality of image communications economically, a standard coding method with a higher efficiency is required. This paper proposes three methods to eliminate horizontal-mode codes (which are mainly contained in noise components) from each coding process. The idea is based on the fact that MMR coding can be highly compressed by using 2-D correlations. The three proposed methods are compared in respect of compression rate, processing speed, and image quality by using document images. The results show that the run-length code reduction method is best, the compression rate being higher than conventional methods by 19.6% (maximum) and 12.7% (mean), the processing speed being 2803 times that of conventional binary-image processing, and the image quality being high due to noise elimination.
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