ACCURACY IMPROVEMENT OF HISTOGRAM-BASED IMAGE FILTERING

被引：0
|
作者：
Igarashi, Masaki [1 ]
Mizuno, Akira [1 ]
Ikebe, Masayuki [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Kita Ku, Sapporo, Hokkaido 0600814, Japan
来源：
2013 20TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP 2013) | 2013年
关键词：
Image filter; local histogram; median filter; bilateral filter; intensity-stacked histogram;
D O I：
暂无
中图分类号：
TB8 [摄影技术];
学科分类号：
0804 ;
摘要：
We propose a method for improving the accuracy of histogram-based image filtering. With this method, we define a histogram called intensity-stacked histogram. An image histogram generally consists of a frequency (number of pixels) for each bin. On the other hand, intensity-stacked histogram stores the sum of intensity values for each bin. The intensity-stacked histogram can be calculated in constant time similar to a standard histogram. We apply the intensity-stacked histogram to histogram-based image algorithms for median and bilateral filters. The histogram-based image filter with the intensity-stacked histogram works effectively when using a few bins. We confirmed that the accuracy of histogram-based image filters using intensity-stacked histogram is higher than that using standard histogram.
引用
收藏
页码：1217 / 1221
页数：5
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