Invention Grant
US5917955A Area recognizing device and gradation level converting device employing
area recognizing device
失效
采用区域识别装置的区域识别装置和灰度级转换装置
- Patent Title: Area recognizing device and gradation level converting device employing area recognizing device
- Patent Title (中): 采用区域识别装置的区域识别装置和灰度级转换装置
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Application No.: US798230Application Date: 1997-02-11
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Publication No.: US5917955APublication Date: 1999-06-29
- Inventor: Akio Kojima
- Applicant: Akio Kojima
- Applicant Address: JPX Kadoma
- Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee Address: JPX Kadoma
- Priority: JPX5-252853 19931008
- Main IPC: H04N1/40
- IPC: H04N1/40 ; H04N1/41 ; G04K9/40 ; H04N1/38
Abstract:
A first converting circuit converts K-level image data, and suppresses a diffusion range of data by an N-level converting circuit. The N-level converting circuit converts a K-level image into an N-level gradation image (K>N). An image memory stores the N-level gradation image. An estimating circuit converts the N-level gradation image into an M-level gradation image (N
Public/Granted literature
- US5230192A Ventilated roofing system Public/Granted day:1993-07-27
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