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    • 3. 发明授权
    • Image processing method and image processing apparatus
    • 图像处理方法和图像处理装置
    • US08400536B2
    • 2013-03-19
    • US12960686
    • 2010-12-06
    • Yuki Ishida
    • Yuki Ishida
    • H04N5/202
    • H04N5/202G06T5/008G06T5/50G06T2207/10152H04N1/6086
    • This invention has been made to solve the problem that when a duplicated image is generated by capturing an original image using a digital camera and printing the captured image, lighting unevenness occurs in an image captured under a viewing light source, compared to that under flash light with a predetermined irradiation amount, and accurate color conversion cannot be performed. To solve this problem, pixels exhibiting identical colors are selected from a plurality of positions from the image captured under flash light. The positions of the corresponding pixels are selected from the image captured under the viewing light source. If the color values at the pixel positions differ, the influence of lighting unevenness in the viewing light source exists. Thus, shading correction data for the image captured under a viewing light source is generated so as to remove the shading of the image captured under the viewing light source.
    • 本发明是为了解决通过使用数码相机拍摄原始图像并打印拍摄图像来生成复制图像的问题,与在闪光灯下方相比,在观察光源下拍摄的图像中发生照明不均匀 具有预定的照射量,并且不能进行精确的颜色转换。 为了解决这个问题,从闪光下拍摄的图像的多个位置中选择表现出相同颜色的像素。 相应像素的位置从在观察光源下拍摄的图像中选择。 如果像素位置的颜色值不同,则存在观察光源中的照明不均匀的影响。 因此,生成在观察光源下拍摄的图像的阴影校正数据,以便去除在观察光源下拍摄的图像的阴影。
    • 4. 发明申请
    • CALIBRATION METHOD AND PRINTING APPARATUS
    • 校准方法和打印设备
    • US20090067007A1
    • 2009-03-12
    • US12205947
    • 2008-09-08
    • Yuki Ishida
    • Yuki Ishida
    • H04N1/60
    • H04N1/60H04N1/6019H04N1/6033
    • This invention relates to a method capable of performing labor- and time-saving calibration at high precision, and a printing apparatus to which this method is applied. According to the method, a plurality of patches which are based on achromatic (K) data and have different tone values, and a plurality of patches which are based on chromatic color (C, M, and Y) data and have different tone values are printed. These patches are measured separately for the chromatic and achromatic colors. Chromatic and achromatic color correction tables are separately created to execute calibration. Compared to calibrating C, M, Y, and K, the number of printing media, the coloring material, and the labor of the user can be reduced, and calibration can be performed at higher precision.
    • 本发明涉及一种能够以高精度执行劳动和省时校准的方法,以及应用该方法的打印装置。 根据该方法,基于无彩色(K)数据并具有不同色调值的多个色块和基于彩色(C,M和Y)数据并具有不同色调值的多个色块是 印刷。 单独测量这些贴片的色彩和无彩色。 分别创建色彩和无彩色色彩校正表以执行校准。 与校准C,M,Y和K相比,可以减少打印介质的数量,着色材料和用户的人力,并且可以以更高的精度执行校准。
    • 7. 发明申请
    • PRINTING SYSTEM AND METHOD
    • 印刷系统和方法
    • US20110032380A1
    • 2011-02-10
    • US12831073
    • 2010-07-06
    • Yuki Ishida
    • Yuki Ishida
    • H04N9/73
    • H04N1/6033
    • Color charts each formed from patches corresponding to different colors are uniformly arranged at different positions on a print medium almost equal in size to an object to be photographed by a camera. The printed color charts are photographed by the camera one by one so that one color chart falls within the photographing range of the camera while keeping the distance between the camera and the print medium constant, acquiring photographing data. Under the same conditions, parts of the object are photographed one by one so that a part of the object at the same position as the position of one photographed color chart on the print medium falls within the photographing range of the camera, acquiring photographing data. Color coordinate values are acquired from the photographed color charts. By using the values, the color of the acquired photographing data is converted. The printing apparatus prints the converted data.
    • 由对应于不同颜色的贴片形成的彩色图表均匀地布置在打印介质上的不同位置上,该打印介质的尺寸几乎等于由相机拍摄的对象。 通过照相机逐一拍摄打印的色彩图,以便在保持照相机和打印介质之间的距离恒定的情况下,一张彩色图表落在照相机的拍摄范围内,获取拍摄数据。 在相同的条件下,对对象的部分被逐个拍摄,使得与打印介质上的一个拍摄的颜色图的位置相同位置的对象的一部分落在相机的拍摄范围内,从而获取拍摄数据。 从拍摄的色彩图中获取色坐标值。 通过使用这些值,所获取的拍摄数据的颜色被转换。 打印设备打印转换的数据。
    • 8. 发明申请
    • IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS
    • 图像处理方法和图像处理装置
    • US20110141326A1
    • 2011-06-16
    • US12960686
    • 2010-12-06
    • Yuki Ishida
    • Yuki Ishida
    • H04N5/202G06K9/00G06K15/02
    • H04N5/202G06T5/008G06T5/50G06T2207/10152H04N1/6086
    • This invention has been made to solve the problem that when a duplicated image is generated by capturing an original image using a digital camera and printing the captured image, lighting unevenness occurs in an image captured under a viewing light source, compared to that under flash light with a predetermined irradiation amount, and accurate color conversion cannot be performed. To solve this problem, pixels exhibiting identical colors are selected from a plurality of positions from the image captured under flash light. The positions of the corresponding pixels are selected from the image captured under the viewing light source. If the color values at the pixel positions differ, the influence of lighting unevenness in the viewing light source exists. Thus, shading correction data for the image captured under a viewing light source is generated so as to remove the shading of the image captured under the viewing light source.
    • 本发明是为了解决通过使用数码相机拍摄原始图像并打印拍摄图像来生成复制图像的问题,与在闪光灯下方相比,在观察光源下拍摄的图像中发生照明不均匀 具有预定的照射量,并且不能进行精确的颜色转换。 为了解决这个问题,从闪光下拍摄的图像的多个位置中选择表现出相同颜色的像素。 相应像素的位置从在观察光源下拍摄的图像中选择。 如果像素位置的颜色值不同,则存在观察光源中的照明不均匀的影响。 因此,生成在观察光源下拍摄的图像的阴影校正数据,以去除在观察光源下拍摄的图像的阴影。