TRANSMISSION TYPE COLOR CALIBRATION CHART

PROBLEM TO BE SOLVED: To provide a transmission type color calibration chart capable of performing accurate color calibration of imaging equipment.SOLUTION: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate. The col...

Full description

Saved in:
Bibliographic Details
Main Authors OGINO YOSHIHIKO, SAWARA TAKAHIRO, TAGUCHI KUNIO, KAJIMURA YOICHI, SASAGAWA YASUSHI, MIZUNO HITOSHI
Format Patent
LanguageEnglish
Japanese
Published 12.10.2017
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:PROBLEM TO BE SOLVED: To provide a transmission type color calibration chart capable of performing accurate color calibration of imaging equipment.SOLUTION: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate. The color bar group is constituted such that color bars of a plurality of colors including at least a first color and a second color are arranged in a pattern shape in a random order. A coordinate point of the first color exists in a region surrounded by four points of (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, and a coordinate point of the second color exists in a region surrounded by four points of (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on the xy chromaticity diagram. A transmission spectrum of a color bar of the first color and a transmission spectrum of a color bar of the second color individually have peak tops separated from each other.SELECTED DRAWING: Figure 3 【課題】撮像機器の正確な色較正を行うことが可能な透過型色較正用チャートを提供する。【解決手段】透明基板と、上記透明基板上に形成されたカラーバー群と、を有し、上記カラーバー群は、少なくとも第1色および第2色を含む複数色のカラーバーが、順不同でパターン状に配列されて構成され、上記第1色の座標点は、xy色度図上で(0.351、0.649)、(0.547、0.453)、(0.380、0.506)、(0.433、0.464)の4点に囲まれた領域内にあり、上記第2色の座標点は、xy色度図上で、(0.125、0.489)、(0.112、0.229)、(0.270、0.407)、(0.224、0.242)の4点に囲まれる領域内にあり、第1色カラーバーの透過スペクトルおよび第2色カラーバーの透過スペクトルが、それぞれ分離したピークトップを有することを特徴とする。【選択図】図3
Bibliography:Application Number: JP20170054641