Image analysis – Image enhancement or restoration – Edge or contour enhancement
Patent
1996-10-22
1999-07-20
Lee, Thomas D.
Image analysis
Image enhancement or restoration
Edge or contour enhancement
382260, G06K 940
Patent
active
059265787
ABSTRACT:
Overall actual image data is divided into tiles, spatial frequency distribution states of respective tiles are analyzed, and three extracted images including an image (95A) having the maximum number of high frequency components, an image (95C) having the minimum number of high frequency components and an image (95B) including the intermediate number of high frequency components are displayed on an extracted image display screen (91B). When a user inputs candidate values for contour enhancement processing parameters as to the three extracted images, contour enhancement processing is performed on the respective extracted images in response to this. When the candidate values for the parameters are ascertained, contour enhancement processing is performed on the overall actual image in response to this, and the image is displayed on a display box (51). Thus, an image processor having a short contour enhancement processing time with excellent sharpness tuning efficiency is provided.
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Fukase Masayuki
Nakatsuka Kimihiro
Brinich Stephen
Dainippon Screen Mfg. Co,. Ltd.
Lee Thomas D.
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