@article{weko_15860_1,
   author	 = "黒沢,由明",
   title	 = "平均濃度近似による濃淡画像の2値化表示方式",
   journal	 = "情報処理学会論文誌",
   year 	 = "1985",
   volume	 = "26",
   number	 = "1",
   pages	 = "153--160",
   month	 = "jan"
}