公开(公告)号：US20130188204A1

公开(公告)日：2013-07-25

申请号：US13734370

申请日：2013-01-04

Applicant: OCE TECHNOLOGIES B.V.

Inventor： Maria V. ORTIZ SEGOVIA ,  Jan P. ALLEBACH ,  Nicolas P.M.F. BONNIER

IPC: G06K15/02

CPC classification number: G06K15/1878 ,  H04N1/52 ,  H04N1/6022

Abstract: A method for printing an image with colour pixels is disclosed. This method optimizes the print quality for a selected level of ink usage by maximizing a dot-off-dot strategy and separating between direct binary search dot patterns for a number of selected colorants in a printer comprising black colorant. Ink usage is controlled by determining the fraction of coinciding printer colorants that may be substituted by black colorant. The perceived error between the image pixels and the image dot pattern is minimized according to a human visual system model that excludes non-homogeneous patterns that affect the quality of the halftone textures. Dots for other colorants are processed independently and added to the obtained halftone dot pattern for the selected colorants.

Abstract translation: 公开了一种用彩色像素打印图像的方法。 该方法通过最大化点对点策略并在包括黑色着色剂的打印机中的多个所选着色剂的直接二进制搜索点图案之间分离来优化所选择的墨水使用水平的打印质量。 油墨使用通过确定可被黑色着色剂代替的重合打印机着色剂的分数来控制。 根据影响半色调纹理质量的不均匀图案的人类视觉系统模型，将图像像素和图像点图案之间的感知误差最小化。 对于其它着色剂的点被独立地加工，并且添加到所选择的着色剂的获得的半色调点图案中。

公开(公告)号：US20150228059A1

公开(公告)日：2015-08-13

申请号：US14695694

申请日：2015-04-24

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Nicolas P.M.F. BONNIER ,  Albrecht J. LINDNER ,  Sabine SUSSTRUNCK

IPC: G06T5/00 ,  G06T11/20

CPC classification number: G06T5/002 ,  G06T11/20

Abstract: The invention is related to a method for image processing a raster image according to an amount of image enhancement, using an image keyword. A predetermined set of raster images with associated keywords is used, a raster image being a digital image with pixel values. The invented method comprises the steps of determining an image property, which is a value derivable from the values of the pixels of a raster image, obtaining from the set of raster images a plus set, which comprises raster images that are associated with said image keyword and a minus set, which comprises raster images that are not associated with said image keyword, obtaining a difference value between the image property of the raster image and a reference value from the set of image properties of the images of the plus set, obtaining a significance value for the image keyword by comparing the image properties of images of the plus set with the image properties of images of the minus set, determining the amount of image enhancement in dependence of said difference value and said significance value, and processing the raster image according to the determined amount of image enhancement. Thus, an image keyword is used as a second, independent input, besides the input of the pixel values of the raster image, to control the image enhancement, which increases the flexibility of the dependence of the amount of automatic image enhancement on the keyword that a user selects to indicate his intention in relation to the input raster image.

Abstract translation: 本发明涉及一种使用图像关键字根据图像增强量对光栅图像进行图像处理的方法。 使用具有关联关键字的预定的光栅图像集合，光栅图像是具有像素值的数字图像。 本发明的方法包括以下步骤：确定图像属性，该图像属性是从光栅图像的像素的值导出的值，从光栅图像集获得加集，其包括与所述图像关键字相关联的光栅图像 以及负组合，其包括与所述图像关键字不相关联的光栅图像，从所述加集的图像的图像属性的集合中获得所述光栅图像的图像特性和参考值之间的差值，获得 通过将加集的图像的图像属性与负集合的图像的图像属性进行比较来确定图像增强的量，并且根据所述差值和所述显着性值来处理图像关键字的显着性值，并且处理光栅图像 根据确定的图像增强量。 因此，除了输入光栅图像的像素值之外，将图像关键字用作第二独立输入，以控制图像增强，这增加了自动图像增强量对关键字的依赖性的灵活性 用户选择相对于输入光栅图像表示他的意图。