JP2005059561A - Method to reproduce color gamut close to color crt color reproduction region by printing - Google Patents
Method to reproduce color gamut close to color crt color reproduction region by printing Download PDFInfo
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- JP2005059561A JP2005059561A JP2003320408A JP2003320408A JP2005059561A JP 2005059561 A JP2005059561 A JP 2005059561A JP 2003320408 A JP2003320408 A JP 2003320408A JP 2003320408 A JP2003320408 A JP 2003320408A JP 2005059561 A JP2005059561 A JP 2005059561A
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Abstract
Description
本発明は、印刷で表現可能な色域を広げて、より鮮やかな、より正確な表現を可能とする印刷技術である。The present invention is a printing technique that enables a brighter and more accurate expression by expanding the color gamut that can be expressed by printing.
従来の印刷技術では、表現可能な色域を越える色は近い色に置き換えてしまうか、部分的に特色を刷り込むことで対応している。In the conventional printing technology, a color exceeding the color gamut that can be expressed is replaced with a close color, or a special color is partially printed.
青い空や若葉の緑、薔薇の赤やラベンダーの紫など、現在の印刷で表現可能な色域を越える色を表現しようとすると、色が濁ってしまったり、色相が変わってしまったりなどして思う色に仕上がらない難点がある。本発明はこの課題を解消するためになされたものである。If you try to express a color that exceeds the color gamut that can be represented by current printing, such as blue sky, green leaves, red rose, or purple lavender, the colors may become cloudy or the hue may change. There is a difficulty that is not finished in the color you want. The present invention has been made to solve this problem.
色材を変える。色材にピュアシアン、ピュアマゼンタ、ピュアイエローの3つの特色とブラックの4色を用いて多色印刷する。
ピュアシアンとは「L:90.7、a:−50.6、b:−15.0」を理想とした色、ピュアマゼンタは「L:60.2、a: 93.5、b:−60.5」を理想とした色、ピュアイエローは「L:97.6、a:−15.7、b: 93.4」を理想とした色のことである。(「」内の英数字はCIEL*a*b*(D65)の座標値)
ただし、ピュアイエローは現在使われているイエローとあまり違いがないので、現在使われているイエローを代用することもできる。Change the color material. Multicolor printing is performed using three special colors of pure cyan, pure magenta, and pure yellow and four colors of black.
Pure cyan is an ideal color of “L: 90.7, a: −50.6, b: −15.0”, and pure magenta is “L: 60.2, a: 93.5, b: −. 60.5 "is an ideal color, and pure yellow is an ideal color of" L: 97.6, a: -15.7, b: 93.4 ". (The alphanumeric characters in "" are the coordinate values of CIE L * a * b * (D65))
However, since pure yellow is not much different from the currently used yellow, the currently used yellow can be substituted.
現在の印刷可能な色域を越える広範な再現が可能となる。より鮮やかな色やより正確な色を表現することができる。Wide reproduction beyond the current printable color gamut is possible. More vivid colors and more accurate colors can be expressed.
RGB分解して得られるR版をピュアシアン版とし、G版をピュアマゼンタ版、B版をピュアイエロー版として、それに従来の墨版生成で得られるブラック版をプラスした4版を使って多色印刷する。ただし、従来の写真製版と同様、トーンカーブなどによる補正、調整は必要な場合がほとんどである。
色材にはピュアシアン、ピュアマゼンタ、ピュアイエローの特色3色とブラックの4色を用いる。
ピュアシアンとは「L:90.7、a:−50.6、b:−15.0」を理想とした色、ピュアマゼンタは「L:60.2、a: 93.5、b:−60.5」を理想とした色、ピュアイエローは「L:97.6、a:−15.7、b: 93.4」を理想とした色のことである。(「」内の英数字はCIEL*a*b*(D65)の座標値)
ただし、ピュアイエローは現在使われているイエローとあまり違いがないので、現在使われているイエローを代用することもできる。The R version obtained by RGB separation is the pure cyan version, the G version is the pure magenta version, the B version is the pure yellow version, and it is multicolored using the 4th version plus the black version obtained by conventional black plate generation. Print. However, in the same way as in conventional photoengraving, correction and adjustment with a tone curve or the like is often necessary.
As the color material, three special colors of pure cyan, pure magenta and pure yellow and four colors of black are used.
Pure cyan is an ideal color of “L: 90.7, a: −50.6, b: −15.0”, and pure magenta is “L: 60.2, a: 93.5, b: −. 60.5 "is an ideal color, and pure yellow is an ideal color of" L: 97.6, a: -15.7, b: 93.4 ". (The alphanumeric characters in "" are the coordinate values of CIE L * a * b * (D65))
However, since pure yellow is not much different from the currently used yellow, the currently used yellow can be substituted.
Claims (1)
理想とする純粋なシアンとは「L:90.7、a:−50.6、b:−15.0」、
理想とする純粋なマゼンタは「L:60.2、a: 93.5、b:−60.5」、
理想とする純粋なイエローは「L:97.6、a:−15.7、b: 93.4」
(「」内の英数字はCIEL*a*b*(D65)の座標値)とし、以下それぞれをピュアシアン、ピュアマゼンタ、ピュアイエローとする。
ただし、ピュアイエローは現在使われているイエローとあまり違いがないので、現在使われているイエローを代用することもできる。Multi-color printing is performed using three special colors ideal for pure cyan, pure magenta, and pure yellow, and four colors of black.
The ideal pure cyan is “L: 90.7, a: −50.6, b: −15.0”,
The ideal pure magenta is “L: 60.2, a: 93.5, b: −60.5”,
The ideal pure yellow is "L: 97.6, a: -15.7, b: 93.4"
(The alphanumeric characters in “” are the coordinate values of CIE L * a * b * (D65)), and the following are respectively pure cyan, pure magenta, and pure yellow.
However, since pure yellow is not much different from the currently used yellow, the currently used yellow can be substituted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003320408A JP2005059561A (en) | 2003-08-08 | 2003-08-08 | Method to reproduce color gamut close to color crt color reproduction region by printing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2003320408A JP2005059561A (en) | 2003-08-08 | 2003-08-08 | Method to reproduce color gamut close to color crt color reproduction region by printing |
Publications (1)
Publication Number | Publication Date |
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JP2005059561A true JP2005059561A (en) | 2005-03-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003320408A Pending JP2005059561A (en) | 2003-08-08 | 2003-08-08 | Method to reproduce color gamut close to color crt color reproduction region by printing |
Country Status (1)
Country | Link |
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JP (1) | JP2005059561A (en) |
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2003
- 2003-08-08 JP JP2003320408A patent/JP2005059561A/en active Pending
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