Title:
RESOLVING POWER MEASUREMENT METHOD AND DEVICE, PROGRAM, AND PRINTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/207535
Kind Code:
A1
Abstract:
Provided are a resolving power measurement method and device, program, and printing device that make it possible to calculate a contrast transfer function using a relatively simple algorithm even if a chart has a missing line. In the present invention, a chart including dark and light stripes having concentration profiles that change in rectangular shapes at a prescribed interval is read by an optical reader. For each pixel in a range for calculation in image data for the read image, the interpixel contrasts between the pixel and each pixel removed from the pixel by 1 to d pixels in the stripe interval direction are calculated. The contrast transfer function for each stripe position in the dark and light stripes is calculated from the maximum values from among the contrast values calculated for each pixel.
Inventors:
NAGASHIMA KANJI (JP)
Application Number:
PCT/JP2018/015043
Publication Date:
November 15, 2018
Filing Date:
April 10, 2018
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G01M11/02; B41J2/01; H04N1/00
Foreign References:
| JP2011166568A | 2011-08-25 | |||
| JP2008311953A | 2008-12-25 | |||
| JP2007147438A | 2007-06-14 | |||
| US20030067595A1 | 2003-04-10 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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