公开(公告)号：EP0936074B1

公开(公告)日：2003-09-17

申请号：EP98933968.4

申请日：1998-07-28

申请人： Sony Corporation

发明人： KAKINUMA, Koichiro ,  KATO, Naoya ,  DEGUCHI, Tatsuya

IPC分类号： B41J2/21

CPC分类号： B41J2/2056 ,  B41J2/2054

摘要： When gradation expression is made for cyan, for example, overprinting by ink C' of a low concentration of cyan is done to express low gradation portions, and high gradation portions are expressed by adding a blue ink B of a high concentration and a green ink G of a high concentration to the former. In expressing the high gradation portions, a hue in the high gradation portions can be changed delicately by changing a discharge ratio of the blue ink B of a high concentration to the green ink G of a high concentration, and color reproducibility can be improved.

公开(公告)号：EP1583371A1

公开(公告)日：2005-10-05

申请号：EP03772709.6

申请日：2003-11-12

申请人： SONY CORPORATION

发明人： ISHIGAMI, Koichiro ,  KATO, Naoya

IPC分类号： H04N9/64

CPC分类号： H04N1/6086 ,  H04N1/6027 ,  H04N9/735

摘要： A light source estimation method of this invention estimates from the sensor response the color characteristics of an unknown light source of an image-pickup scene, in order to improve white balance adjustment and other aspects of the quality of color reproduction; a projection conversion portion 6 projects sensor response values 5 into an image distribution 9 in an evaluation space not dependent on the image-pickup light source 2 using parameters obtained by operations which can be colorimetrically approximated from spectral sensitivity characteristics of image-pickup unit 4, which are known, and from spectral characteristics of an assumed test light source 1; an evaluation portion 10 evaluates the correctness of a plurality of the test light sources 1 based on the distribution state of sample values of the projected scene; and accordingly, the correct image-pickup light source 2 is estimated.

公开(公告)号：EP0936074A1

公开(公告)日：1999-08-18

申请号：EP98933968.4

申请日：1998-07-28

申请人： Sony Corporation

发明人： KAKINUMA, Koichiro ,  KATO, Naoya ,  DEGUCHI, Tatsuya

IPC分类号： B41J2/21

CPC分类号： B41J2/2056 ,  B41J2/2054

摘要： A printer device and a picture printing method is disclosed, in which, if the gradation for cyan is to be represented, an ink C' of low concentration is superimposed to represent the low gradation area. This cyan ink is used in combination with a high-concentration blue ink B and a high-concentration green ink G to represent a high gradation area. In representing the high gradation area the emitting proportions of the high-concentration blue ink B and the high-concentration green ink G are changed to enable the color hue in the high gradation area to be varied delicately to improve color reproducibility.

摘要翻译： 公开了一种打印机装置和图像打印方法，其中如果要表示青色的灰度，则叠加低浓度的墨水C'以表示低渐变区域。 这种青色墨水与高浓度蓝色墨水B和高浓度绿色墨水G组合使用以表示高浓度区域。 在高浓度区域表示时，改变高浓度蓝色墨水B和高浓度绿色墨水G的发光比例，使得高浓度绿色墨水G的色调可以精美地变化，以提高色彩再现性。