公开(公告)号：US5812243A

公开(公告)日：1998-09-22

申请号：US733019

申请日：1996-10-16

申请人： Hermann Waibel ,  Hans-Georg Schindler

发明人： Hermann Waibel ,  Hans-Georg Schindler

IPC分类号： G03B27/73 ,  H04N1/60 ,  H04N9/79 ,  G03B27/80 ,  G03B27/54

CPC分类号： H04N1/6094 ,  H04N1/6033

摘要： A photographic color printer includes a color video camera for making specialty prints. A memory is provided to store different color compositions for printing light including an initial color composition and additional color compositions which surround the initial color composition. The memory also stores camera adjustment parameters for each additional color composition so that, when the color composition of the printing light is shifted away from the initial color composition, the camera can be adjusted to the new color composition. The camera is adjusted to the initial color composition by exposing the camera to light of this composition. Following such exposure, the camera is sequentially exposed to light of the various additional color compositions. The camera is adjusted to each additional color composition in order to obtain the camera adjustment parameters which are to be stored in the memory.

摘要翻译： 照相彩色打印机包括用于制作特殊照片的彩色摄像机。 提供存储器以存储用于印刷光的不同颜色组合物，包括初始颜色组合物和围绕初始颜色组成的附加颜色组合物。 存储器还存储用于每个附加颜色组成的照相机调整参数，使得当打印光的颜色组成从初始颜色组成偏移时，照相机可以被调整到新的颜色组成。 通过将相机曝光到该组合物的光线，照相机被调整到初始的颜色组成。 在这种曝光之后，相机依次暴露于各种附加颜色组合物的光。 为了获得存储在存储器中的相机调整参数，将相机调整到每个附加的颜色组合。

公开(公告)号：US5703700A

公开(公告)日：1997-12-30

申请号：US406643

申请日：1995-03-20

申请人： Klaus Birgmeir ,  Hermann Waibel

发明人： Klaus Birgmeir ,  Hermann Waibel

IPC分类号： H04N1/40 ,  H04N1/407 ,  H04N1/04

CPC分类号： H04N1/40056 ,  H04N1/4072

摘要： A transparency to be printed is scanned to generate density values which are used to determine the degree of exposure of the transparency. The transparency is further scanned to generate signals representing an image of the transparency. The scanner which is employed for the latter scanning procedure and produces the signals has a linear scanning range and, based on the degree of exposure of the transparency, the illumination intensity or integration time of this scanner is controlled such that the master is scanned within the linear range. The signals generated by the scanner are corrected using a characteristic line selected in dependence upon the degree of exposure of the transparency, the color temperature and/or the film type. The corrected signals are processed to additionally enhance the image of the transparency and are then used to print the image.

摘要翻译： 扫描要打印的透明度以产生用于确定透明度曝光程度的浓度值。 进一步扫描透明度以产生表示透明度图像的信号。 用于后一扫描程序并产生信号的扫描器具有线性扫描范围，并且基于透明度的曝光程度来控制该扫描仪的照明强度或积分时间，使得主机在 线性范围 使用根据透明度，色温和/或胶片类型的曝光程度选择的特征线校正由扫描仪产生的信号。 处理校正的信号以额外增强透明度的图像，然后用于打印图像。

公开(公告)号：US5699451A

公开(公告)日：1997-12-16

申请号：US139428

申请日：1993-10-20

申请人： Klaus Birgmeir ,  Hermann Waibel

发明人： Klaus Birgmeir ,  Hermann Waibel

IPC分类号： H04N1/60 ,  G06K9/46

CPC分类号： H04N1/60 ,  H04N1/6033

摘要： The gray balance of a color copying apparatus is adjusted by generating three sets of test signals respectively representing red, green and blue components of a test image. The test image is modified by operating on each set of signals with a respective characteristic line. The characteristic lines are stored in look-up-tables constituting part of the apparatus. Each characteristic line has a first point corresponding to a first location of the modified test image and a second point corresponding to a second location of the modified test image. A first copy of the test image is made and the red, green and blue densities of the copy at the first location determined. If any of these densities deviates from a reference value, the corresponding characteristic line is adjusted so that the respective density assumes the reference value. A second copy of the test image is now made and the red, green and blue densities of the copy at the second location determined. In the event that one or more of the densities at the second location deviates from a reference value, the associated characteristic line or lines are further adjusted in such a manner that the first point of each characteristic line remains unchanged.

摘要翻译： 通过产生分别表示测试图像的红色，绿色和蓝色分量的三组测试信号来调整彩色复印设备的灰度平衡。 通过使用相应的特征线对每组信号进行操作来修改测试图像。 特征线存储在构成装置的一部分的查找表中。 每个特征线具有对应于修改的测试图像的第一位置的第一点和对应于修改的测试图像的第二位置的第二点。 制作测试图像的第一份副本，确定第一个位置的副本的红色，绿色和蓝色密度。 如果这些密度中的任何一个偏离参考值，则调整相应的特征线，使得相应的密度呈现参考值。 测试图像的第二个副本现在被做出，并且在第二个位置确定了副本的红色，绿色和蓝色密度。 在第二位置处的一个或多个密度偏离参考值的情况下，相关联的特征线或线被进一步调整，使得每个特征线的第一点保持不变。