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1. 发明授权

US4573190A Method and system of processing image signals 失效
标题翻译：图像信号处理方法及系统
公开(公告)号：US4573190A
公开(公告)日：1986-02-25
申请号：US448443
申请日：1982-12-08
申请人： Teruo Tsunoda , Ryoichi Kokawa
发明人： Teruo Tsunoda , Ryoichi Kokawa
IPC分类号： B41F31/02 , B41F33/00 , G01B11/28 , H04N7/18 , G06K9/50
CPC分类号： B41F33/0027
摘要： In an image area measuring apparatus wherein an image bearing surface of a lithographic printing plate is divided into a plurality of zones and photographed with a television camera to produce analog image signals which are converted into digital signals to obtain a measured value, the image area of each zone is calculated based on the measured value and a quantity of printing ink is determined according to the image area, there is provided a method of processing an image signal including the steps of preparing a first conversion table for 100% dot ratio, and a second conversion table for other percentage of dot ratios, determining the quantity of printing ink from the first conversion table at the time of printing an image having 100% dot ratio, and determining the quantity of the ink from the second conversion table at the time of printing an image having a dot ratio other than 100%.
摘要翻译：在其中将平版印刷版的图像承载面分割为多个区域并用电视摄影机拍摄以产生被转换为数字信号以获得测量值的模拟图像信号的图像区域测量装置中，基于测量值计算每个区域，并且根据图像区域确定印刷油墨的量，提供了一种处理图像信号的方法，包括以下步骤：制备100％点比率的第一转换表，以及第二转换表，其他百分比的点比率，在打印具有100％点比率的图像时确定来自第一转换表的打印墨的量，以及在第二转换表中确定来自第二转换表的墨的量打印点比率不是100％的图像。

2. 发明授权

US4763359A Method and system of processing image signals 失效
标题翻译：图像信号处理方法及系统
公开(公告)号：US4763359A
公开(公告)日：1988-08-09
申请号：US918485
申请日：1986-10-14
申请人： Teruo Tsunoda , Ryoichi Kokawa
发明人： Teruo Tsunoda , Ryoichi Kokawa
IPC分类号： B41F31/02 , B41F33/00 , G01B11/28 , G06T7/60 , H04N7/18 , G06K9/00
CPC分类号： B41F33/0027 , G06T7/60 , G06T2207/30144
摘要： In an image area measuring apparatus of the type wherein an image bearing surface of a lithographic printing plate is photographed with a television camera to produce an image signal, the image signal is converted into a digital signal to obtain a measured value and an image area of each one of a plurality of zones of the image bearing surface is determined by an arithmetic operation utilizing the measured value, the image signal is judged by the step of judging the image signal by taking the percentage of dot ratio of a predetermined constant value as a 100% dot ratio when the image bearing surface does not contain a portion corresponding to 100% dot ratio. Further the image signal is proofed by a method including the steps of obtaining a proof value corresponding to the measured value from a compensation table utilizing logarithmic functions by using a proof plate having a uniform light reflective index, determining a proof value for the measured value of the lithographic printing plate from the proof table, determining a difference between the proof value and the compensation value, and determining the image area from the difference.
摘要翻译：在其中利用电视摄影机拍摄平版印刷版的图像承载面以产生图像信号的图像区域测量装置中，将图像信号转换成数字信号，以获得测量值和图像面积图像承载面的多个区域中的每一个通过利用测量值的算术运算来确定，图像信号通过以预定常数值的点比率的百分比作为判断图像信号的步骤来判断为当图像承载表面不包含对应于100％点比率的部分时，100％的点比率。此外，图像信号通过以下方法证明：包括以下步骤：利用对数函数从补偿表中获得与测量值相对应的校验值，所述校正表使用具有均匀光反射指数的校样板，确定测量值的验证值从证明表中确定平版印刷版，确定验证值与补偿值之间的差异，并根据差异确定图像面积。

3. 发明授权

US4649566A Method and system for processing image signals 失效
标题翻译：图像信号处理方法及系统
公开(公告)号：US4649566A
公开(公告)日：1987-03-10
申请号：US447749
申请日：1982-12-08
申请人： Teruo Tsunoda , Ryoichi Kokawa
发明人： Teruo Tsunoda , Ryoichi Kokawa
IPC分类号： B41F31/02 , B41F33/00 , G01B11/28 , G06T7/60 , H04N7/18 , G06K9/00
CPC分类号： B41F33/0027 , G06T7/60 , G06T2207/30144
摘要： In an image area measuring apparatus of the type wherein an image bearing surface of a lithographic printing plate is photographed with a television camera to produce an image signal, the image signal is converted into a digital signal to obtain a measured value and an image area of each one of a plurality of zones of the image bearing surface is determined by an arithmetic operation utilizing the measured value, the image signal is judged by the step of judging the image signal by taking the percentage of dot ratio of a predetermined constant value as a 100% dot ratio when the image bearing surface does not contain a portion corresponding to 100% dot ratio. Further the image signal is proofed by a method including the steps of obtaining a proof value corresponding to the measured value from a compensation table utilizing logarithmic functions by using a proof plate having a uniform light reflective index, determining a proof value for the measured value of the lithographic printing plate from the proof table, determining a difference between the proof value and the compensation value, and determining the image area from the difference.
摘要翻译：在其中利用电视摄影机拍摄平版印刷版的图像承载面以产生图像信号的图像区域测量装置中，将图像信号转换成数字信号，以获得测量值和图像面积图像承载面的多个区域中的每一个通过利用测量值的算术运算来确定，图像信号通过以预定常数值的点比率的百分比作为判断图像信号的步骤来判断为当图像承载表面不包含对应于100％点比率的部分时，100％的点比率。此外，图像信号通过以下方法证明：包括以下步骤：利用对数函数从补偿表中获得与测量值相对应的校验值，所述校正表使用具有均匀光反射指数的校样板，确定测量值的验证值从证明表中确定平版印刷版，确定验证值与补偿值之间的差异，并根据差异确定图像面积。

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