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Patent Searching and Data


Title:
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/152924
Kind Code:
A1
Abstract:
The present invention provides image processing suitable for measuring a screen printing plate. This image processing method is provided with: an extraction reference setting step; and a region extraction step of extracting a prescribed region from an image to be processed on the basis of an extraction reference. The prescribed region is a region having a periodic or irregular shading derived from a grounding surface of an object to be imaged. The extraction reference setting step has a range selection step of selecting, in an image to be processed, an arbitrary small region including shading from a region visually recognized by an operator to be included in a prescribed region, and a hue range specifying step of specifying a range of a hue value of a pixel belonging to the arbitrary small region on the basis of data of the image to be processed described in an HSV color coordinate system. The range of the hue value specified in the hue range specifying step is set as an extraction reference. The region extraction step has a pixel specifying step of specifying a pixel in which the hue value matches the extraction reference in the image to be processed, and a region including all pixels specified in the pixel specifying step is extracted.

Inventors:
TANAKA KIYOJI (JP)
HOKI TETSUO (JP)
Application Number:
PCT/JP2020/038581
Publication Date:
August 05, 2021
Filing Date:
October 13, 2020
Export Citation:
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Assignee:
SHASHIN KAGAKU CO LTD (JP)
International Classes:
B41F15/08; G01N21/88; G06T7/00; H05K3/00
Foreign References:
JP2011242877A2011-12-01
JP2018132355A2018-08-23
JP2001228051A2001-08-24
JPH1148457A1999-02-23
JP2002163650A2002-06-07
JP2013106173A2013-05-30
CN1885345A2006-12-27
JP2015217559A2015-12-07
JP4652717B22011-03-16
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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