公开(公告)号：US5930388A

公开(公告)日：1999-07-27

申请号：US953155

申请日：1997-10-17

申请人： Yoshinori Murakami ,  Tatsuya Tanaka ,  Makio Goto

发明人： Yoshinori Murakami ,  Tatsuya Tanaka ,  Makio Goto

IPC分类号： B41J5/30 ,  G06T1/00 ,  G06T5/00 ,  H04N1/46 ,  H04N1/60 ,  G06K9/00

CPC分类号： H04N1/6019

摘要： A color image processing apparatus of the present invention includes (1) first lattice for dividing a color separation signal space in the form of a lattice so as to store in a table coordinates of lattice points of the color separation signal space thus divided and (2) second lattice for further dividing a specific unit cube of the lattice in the form of a lattice so as to additionally store in the table coordinates of lattice points of the specific unit cube thus divided. Depending on whether or not inputted image data of image information belong to the specific unit cube of the lattice, color correction method having different conversion accuracy is adopted, thereby permitting to provide a color image processing apparatus which reduce the occurrence of an error when color-correcting a color requiring accurate color correction, and prevent the continuity of an image from being not kept.

摘要翻译： 本发明的彩色图像处理装置包括：（1）用于分割格子形式的分色信号空间的第一格子，以便存储在由此分割的分色信号空间的格点的表坐标中，（2 ）第二格子，用于进一步划分格子形式的格子的特定单位立方体，以便另外存储在由此划分的特定单位立方体的格点的表坐标中。 根据图像信息的输入图像数据是否属于格子的特定单位立方体，采用具有不同转换精度的颜色校正方法，从而可以提供一种彩色图像处理装置，当彩色图像处理装置发生错误时， 校正需要精确色彩校正的颜色，并且防止不保持图像的连续性。

公开(公告)号：US5903665A

公开(公告)日：1999-05-11

申请号：US739933

申请日：1996-10-30

申请人： Tatsuya Tanaka

发明人： Tatsuya Tanaka

IPC分类号： G06T1/00 ,  H04N1/46 ,  H04N1/60 ,  G06K9/00

CPC分类号： H04N1/6027 ,  H04N1/603

摘要： In an image processing apparatus of the present invention, a chromaticity data converting device converts chromaticity data of an original image into chromaticity data which can be outputted from an image output device based on chromaticity data obtained from a color signal of a color sample stored in a first storage device and chromaticity data obtained from a color signal of an input image stored in an original data storage device. Then, a second color converting device converts the chromaticity data converted by the chromaticity data converting device into a signal which can be outputted from the image output device based on data stored in a third storage device. As a result, the chromaticity data of a color signal is converted for each input image individually, thereby making it possible to reproduce colors faithfully to the original image.

摘要翻译： 在本发明的图像处理装置中，色度数据转换装置将原始图像的色度数据转换成可从图像输出装置输出的色度数据，该色度数据是根据从存储在图像输出装置中的色彩样本的颜色信号获得的色度数据 从存储在原始数据存储装置中的输入图像的颜色信号获得的第一存储装置和色度数据。 然后，第二颜色转换装置根据存储在第三存储装置中的数据，将由色度数据转换装置转换的色度数据转换为可以从图像输出装置输出的信号。 结果，对于每个输入图像分别转换颜色信号的色度数据，从而使得可以忠实地再现原始图像的颜色。

公开(公告)号：US5721578A

公开(公告)日：1998-02-24

申请号：US365072

申请日：1994-12-27

申请人： Yoshiyuki Nakai ,  Yasushi Adachi ,  Tatsuya Tanaka ,  Toshio Takehara ,  Tsuyoshi Takeno

发明人： Yoshiyuki Nakai ,  Yasushi Adachi ,  Tatsuya Tanaka ,  Toshio Takehara ,  Tsuyoshi Takeno

IPC分类号： H04N1/405 ,  H04N1/52 ,  B41J2/355 ,  G01D15/10 ,  G01D15/16

CPC分类号： H04N1/52 ,  H04N1/4055

摘要： A gradation control method in a color thermal transfer printer is adapted to express one pixel by a dot matrix with two rows and two coles, control a density value of one dot with a time for energizing a heating element of a thermal head, and carry out mask patterning for plotting only one of four dots when the gradation of each color for one pixel is not more than a prescribed value while plotting only two of the four dots when the gradation is in excess of the prescribed value. At this time, employed is a mask pattern of necessarily plotting cyan and magenta on dots which are different from each other. A picture quality improving method in a staggered printing system is adapted to plot a noted dot when at least one of such conditions that density data of the noted dot is in excess of a prescribed density value and that density data of any of four dots most approximate to the noted dot is not more than a prescribed low density value is satisfied, even if the noted dot corresponds to that to be masked.

摘要翻译： 彩色热转印打印机中的灰度控制方法适用于用两行和两列的点阵表示一个像素，一个点的浓度值用于激励热敏头的加热元件的时间，并执行 当一个像素的每个颜色的灰度不大于规定值时绘制仅四个点之一的掩模图案，同时当灰度超过规定值时仅画出四个点中的两个点。 此时，被采用的是一种掩模图案，其必须在彼此不同的点上绘制青色和品红色。 当交错印刷系统中的图像质量改进方法适用于当所述点的密度数据超过规定的浓度值的至少一个这样的条件中的至少一个并且四个点中的任何一个的密度数据最接近时绘制注释的点 即使指示的点对应于要被掩蔽的点，对于所指示的点也不大于规定的低密度值。