Invention Grant
- Patent Title: Print quality evaluation apparatus and method of print quality evaluation
- Patent Title (中): 打印质量评估设备和打印质量评估方法
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Application No.: US12034825Application Date: 2008-02-21
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Publication No.: US08090156B2Publication Date: 2012-01-03
- Inventor: Jun Hasegawa
- Applicant: Jun Hasegawa
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG Electronics Co., Ltd.
- Current Assignee: SAMSUNG Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim, LLP
- Priority: KR10-2007-0022206 20070306
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
A method and apparatus to evaluate print quality determines an indicator thereof by measuring a reflectance of printed dots by scanning a medium on which pattern data having a predetermined pattern is printed. The predetermined pattern includes a highlight region and a shadow region. An average of reflectances of the highlight region in the predetermined pattern and an average of reflectances of the shadow region thereof are determined, and a contrast value is determined from a difference between the averages. The indicator is determined from the contrast value. Accordingly, deterioration of print quality that occurs due to a mismatch of a print position is considered, and furthermore, a change in print gradation and a degree of mixing with noise components is also considered in the print quality evaluation.
Public/Granted literature
- US20080219513A1 PRINT QUALITY EVALUATION APPARATUS AND METHOD OF PRINT QUALITY EVALUATION Public/Granted day:2008-09-11
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