JP2006203921A5 - - Google Patents

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JP2006203921A5
JP2006203921A5 JP2006039548A JP2006039548A JP2006203921A5 JP 2006203921 A5 JP2006203921 A5 JP 2006203921A5 JP 2006039548 A JP2006039548 A JP 2006039548A JP 2006039548 A JP2006039548 A JP 2006039548A JP 2006203921 A5 JP2006203921 A5 JP 2006203921A5
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Japan
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color
image data
resolution
color image
cmy
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JP2006039548A
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JP2006203921A (en
JP4081773B2 (en
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Publication of JP2006203921A5 publication Critical patent/JP2006203921A5/ja
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Claims (7)

ホストコンピュータと、該ホストコンピュータからのカラーイメージデータに基づいてカラー印刷が可能なカラープリンタとを備えたカラー印刷システムにおいて、
前記プリンタは、
前記ホストコンピュータから送信されるＣＭＹ系表色系に変換前の第１の解像度を有する前記カラーイメージデータを受信する受信手段と、
前記受信された第１の解像度を有するカラーイメージデータに補間処理を行うことにより、該カラーイメージデータの解像度を前記第１の解像度よりも大きい第２の解像度に変換させる補間手段と、
前記補間手段により処理された前記第２の解像度のカラーイメージデータをＣＭＹ表色系のカラーイメージデータに変換するＣＭＹ表色系変換手段と、
前記ＣＭＹ表色系に変換されたカラーイメージデータからディザ処理または誤差拡散処理を用いて生成された印刷データを印刷する印刷手段と、
を備えたことを特徴とするカラー印刷システム。 In a color printing system comprising a host computer and a color printer capable of color printing based on color image data from the host computer,
The printer is
Receiving means for receiving the color image data having the first resolution before conversion to the CMY color system transmitted from the host computer;
Interpolating means for converting the resolution of the color image data to a second resolution larger than the first resolution by performing an interpolation process on the received color image data having the first resolution;
CMY color system conversion means for converting the color image data of the second resolution processed by the interpolation means into color image data of the CMY color system;
Printing means for printing print data generated from the color image data converted into the CMY color system using dither processing or error diffusion processing ;
A color printing system comprising: 前記ホストコンピュータは、ディジタルカメラまたは携帯情報端末のいずれかである請求項１に記載のカラー印刷システム。 The color printing system according to claim 1, wherein the host computer is either a digital camera or a portable information terminal . 前記受信手段により受信された前記第１の解像度を有するカラーイメージデータを、前記第１の解像度のままでプリンタのカラー特性に合わせて調整し、この調整された第１の解像度を有するカラーイメージデータを前記補間手段に引き渡す色調整手段を、さらに備えた請求項１に記載のカラープリンタ。The color image data having the first resolution received by the receiving means is adjusted in accordance with the color characteristics of the printer while maintaining the first resolution, and the color image data having the adjusted first resolution. The color printer according to claim 1, further comprising color adjusting means for transferring the color to the interpolation means. 前記プリンタには、
前記色調整手段により色調整されたカラーイメージデータを輝度成分及び２種類の色成分からなる所定の表色系のカラーイメージデータに変換して前記補間手段に入力する第１の色変換手段と、
前記補間手段により処理されたカラーイメージデータの表色系を前記第１の色変換手段により変換される前の表色系に逆変換する第２の色変換手段とを更に設け、
前記ＣＭＹ表色系変換手段は、前記第２の色変換手段により変換されたカラーイメージデータに基づいて前記ＣＭＹ表色系のカラーイメージデータを生成する請求項３に記載のカラー印刷システム。 The printer includes
First color conversion means for converting the color image data color-adjusted by the color adjustment means into color image data of a predetermined color system composed of a luminance component and two types of color components and inputting the color image data to the interpolation means;
A second color conversion unit that reversely converts the color system of the color image data processed by the interpolation unit to a color system before being converted by the first color conversion unit;
4. The color printing system according to claim 3, wherein the CMY color system conversion unit generates the color image data of the CMY color system based on the color image data converted by the second color conversion unit. 前記ＣＭＹ表色系変換手段、前記第１の色変換手段及び前記第２の色変換手段の少なくともいずれか１つは、専用ハードウェア回路によって実現される請求項４に記載のカラー印刷システム。 The CMY color system conversion unit, wherein at least one of the first color conversion means and said second color conversion means, color printing system of claim 4 which is realized by dedicated hardware circuits. 前記所定の表色系は、YUV表色系、YIQ表色系、YCbCr表色系のいずれかであることを特徴とする請求項４又は請求項５のいずれかに記載のカラー印刷システム。 6. The color printing system according to claim 4, wherein the predetermined color system is one of a YUV color system, a YIQ color system, and a YCbCr color system. ディジタルカメラまたは携帯情報端末であるホストコンピュータからのカラーイメージデータに基づいてカラー印刷を行うカラープリンタにおいて、
最大印刷解像度よりも低い解像度をもって前記ホストコンピュータから送信されるＣＭＹ表色系に変換前のカラーイメージデータを受信する受信手段と、
前記カラーイメージデータをプリンタのカラー特性に合わせて調整する色調整手段と、
前記色調整手段により色調整されたカラーイメージデータの解像度が前記最大印刷解像度と等しくなるように補間処理を行う補間手段と、
前記補間手段により処理されたカラーイメージデータをＣＭＹ表色系のカラーイメージデータに変換するＣＭＹ表色系変換手段と、
前記ＣＭＹ表色系に変換されたカラーイメージデータからディザ処理または誤差拡散処理を用いて生成された印刷データを印刷する印刷手段と、
を備えたことを特徴とするカラープリンタ。 In a color printer that performs color printing based on color image data from a host computer that is a digital camera or a portable information terminal
Receiving means for receiving color image data before conversion into the CMY color system transmitted from the host computer with a resolution lower than the maximum print resolution;
Color adjusting means for adjusting the color image data according to the color characteristics of the printer;
Interpolation means for performing interpolation processing so that the resolution of the color image data color-adjusted by the color adjustment means is equal to the maximum print resolution;
CMY color system conversion means for converting the color image data processed by the interpolation means into color image data of the CMY color system;
Printing means for printing print data generated from the color image data converted into the CMY color system using dither processing or error diffusion processing ;
A color printer comprising:
JP2006039548A 2006-02-16 2006-02-16 Color printing system and color printer Expired - Fee Related JP4081773B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006039548A JP4081773B2 (en) 2006-02-16 2006-02-16 Color printing system and color printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006039548A JP4081773B2 (en) 2006-02-16 2006-02-16 Color printing system and color printer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP35337498A Division JP3864405B2 (en) 1998-12-11 1998-12-11 Color printing system and color printer

Publications (3)

Publication Number Publication Date
JP2006203921A JP2006203921A (en) 2006-08-03
JP2006203921A5 true JP2006203921A5 (en) 2006-09-14
JP4081773B2 JP4081773B2 (en) 2008-04-30

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Family Applications (1)

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JP2006039548A Expired - Fee Related JP4081773B2 (en) 2006-02-16 2006-02-16 Color printing system and color printer

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JP (1) JP4081773B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150915A1 (en) 2012-04-04 2013-10-10 キヤノン株式会社 Image processing device, image processing method, and program

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