Image processing apparatus and method that determines the thickness of characters and lines

作者: Yushi Matsukubo , Yoshiki Uchida , Shinobu Arimoto

DOI:

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摘要: Black correction to character, lines, and the like, is performed smoothly so as maintain quality of an image much possible. In a character thickness determining circuit 114 black determination unit 113 , characters lines are determined based on RGB signals. Further, character/line outline information obtained at edge detector 115 chromaticity 116 . When processing combination information, signal corrected that like changes continuously.

参考文章(23)
Katsuyoshi Maeshima, Shinobu Arimoto, Atsushi Takeda, Shizuo Hasegawa, Color imager having varying filter aperture sizes to compensate for luminance differences between colors ,(1988)
Kimiyoshi Hayashi, Yoshiko Horie, Yoshinori Ikeda, Mitsuru Kurita, Hiroyuki Ichikawa, Toshio Honma, Image processing apparatus including a minimum value signal detector unit ,(1990)
Masahiro Funada, Tatsuhito Kataoka, Koji Kajita, Mitsuru Kurita, Hiroyuki Takahashi, Image processing apparatus which detects a line image ,(1991)
Kimiyoshi Hayashi, Yoshiko Horie, Yoshinori Ikeda, Mitsuru Kurita, Hiroyuki Ichikawa, Toshio Honma, Image processing apparatus including means for performing electrical thinning and fattening processing ,(1990)
Tetsuya Ohnishi, Yoshinori Ikeda, Kadowaki Toshihiro, Color image processing apparatus ,(1991)
Kimiyoshi Hayashi, Yoshiko Horie, Yoshinori Ikeda, Mitsuru Kurita, Hiroyuki Ichikawa, Toshio Honma, Image processing apparatus capable of image editing ,(1990)