公开(公告)号：US20120243051A1

公开(公告)日：2012-09-27

申请号：US13480654

申请日：2012-05-25

申请人： Vincent Jean-Marie Noël LE GLAUNEC ,  Christophe Antoine LEYNADIER ,  Philippe Jean-Michel SOBCZAK

发明人： Vincent Jean-Marie Noël LE GLAUNEC ,  Christophe Antoine LEYNADIER ,  Philippe Jean-Michel SOBCZAK

IPC分类号： H04N1/60 ,  G06K15/02

CPC分类号： H04N1/6072 ,  H04N1/52

摘要： A method for generating print data for digital color images uses a division of the images in windows. Each window is characterized as belonging to a predefined class, based on values of pixels in corresponding windows in at least two sub-images that are derived from the color image by a series of image processing steps. These sub-images are, e.g. a gradient sub-image in which the value of every pixel indicates the difference of that pixel with its local neighborhood and a non-uniformity sub-image in which each pixel determined to be comprised in a uniform area is provided with a predetermined value. The percentage of windows belonging to a class is calculated and compared to threshold values to identify an image type. This image type is used to select a conversion method to convert the color image into print data for printing on the printer system.

摘要翻译： 用于产生数字彩色图像的打印数据的方法使用窗口中的图像的划分。 基于通过一系列图像处理步骤从彩色图像导出的至少两个子图像中的相应窗口中的像素的值，将每个窗口表征为属于预定义类别。 这些子图像是例如。 梯度子图像，其中每个像素的值指示该像素与其局部邻域的差异以及其中确定包含在均匀区域中的每个像素被提供有预定值的不均匀性子图像。 计算属于类的窗口的百分比，并将其与阈值进行比较以识别图像类型。 该图像类型用于选择将彩色图像转换为打印数据以在打印机系统上进行打印的转换方法。