公开(公告)号：US20110255779A1

公开(公告)日：2011-10-20

申请号：US12763167

申请日：2010-04-19

申请人： Rocklin James Sloan

发明人： Rocklin James Sloan

IPC分类号： G06K9/00

CPC分类号： H04N1/60

摘要： Color management using a vector-based color difference metric. A color difference map is comprised of color difference vectors for each of a plurality of pixels of an original image. The color difference vector for each pixel includes both a magnitude and a directionality representing a difference for color data in each pixel in the original image, relative to color data in a corresponding mapped pixel in a color mapped image. Pixels in the color difference map having large color differences in color movement relative to nearby pixels are identified in the color difference map, by applying an edge-detection algorithm to the color difference map. For each pixel that is identified in a smooth area in the original image and is identified as having a large color difference in the color difference map, a correction algorithm is applied, so as to provide a corrected color mapped image.

摘要翻译： 使用基于矢量的色差度量进行颜色管理。 色差图由原始图像的多个像素中的每一个的色差矢量构成。 每个像素的色差矢量相对于彩色映射图像中对应的映射像素中的颜色数据包括表示原始图像中的每个像素中的颜色数据的差的幅度和方向性。 通过对色差映射应用边缘检测算法，在色差映射中识别色相映射中相对于附近像素的颜色差异较大的色差映象中的像素。 对于在原始图像的平滑区域中识别并被识别为在色差图中具有大的色差的每个像素，应用校正算法，以便提供校正的颜色映射图像。

公开(公告)号：US08737730B2

公开(公告)日：2014-05-27

申请号：US12763167

申请日：2010-04-19

申请人： Rocklin James Sloan

发明人： Rocklin James Sloan

IPC分类号： G06K9/00

CPC分类号： H04N1/60

摘要： Color management using a vector-based color difference metric. A color difference map is comprised of color difference vectors for each of a plurality of pixels of an original image. The color difference vector for each pixel includes both a magnitude and a directionality representing a difference for color data in each pixel in the original image, relative to color data in a corresponding mapped pixel in a color mapped image. Pixels in the color difference map having large color differences in color movement relative to nearby pixels are identified in the color difference map, by applying an edge-detection algorithm to the color difference map. For each pixel that is identified in a smooth area in the original image and is identified as having a large color difference in the color difference map, a correction algorithm is applied, so as to provide a corrected color mapped image.

摘要翻译： 使用基于矢量的色差度量进行颜色管理。 色差图由原始图像的多个像素中的每一个的色差矢量构成。 每个像素的色差矢量相对于彩色映射图像中对应的映射像素中的颜色数据包括表示原始图像中的每个像素中的颜色数据的差的幅度和方向性。 通过对色差映射应用边缘检测算法，在色差映射中识别色相映射中相对于附近像素的颜色差异较大的色差映象中的像素。 对于在原始图像的平滑区域中识别并被识别为在色差图中具有大的色差的每个像素，应用校正算法，以便提供校正的颜色映射图像。