Invention Grant
US08644640B2 Purple fringing artifact reduction within a digital image with guidance from a green channel
有权
在绿色通道的指导下,数字图像中的紫色边缘人造物减少
- Patent Title: Purple fringing artifact reduction within a digital image with guidance from a green channel
- Patent Title (中): 在绿色通道的指导下,数字图像中的紫色边缘人造物减少
-
Application No.: US12472565Application Date: 2009-05-27
-
Publication No.: US08644640B2Publication Date: 2014-02-04
- Inventor: Denis Demandolx
- Applicant: Denis Demandolx
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Main IPC: G06K9/40
- IPC: G06K9/40

Abstract:
Methods and a processing device are provided for reducing purple fringing artifacts appearing in a digital image. A linear filter may be applied to a digital image to identify purplish candidate regions of pixels. Ones of pixels that are in any of the purplish candidate regions and are within a predefined distance of a high gradient/high contrast region may be identified as damaged pixels. A map of the damaged pixels may then be created, or formed. The damaged pixels may be reconstructed based on interpolation of values from undamaged pixels on a fringe boundary with guidance from a green channel. In various embodiments, the damaged pixels may be reconstructed based on a Poisson blending approach, an approximated Poisson blending approach, or a variety of approaches based on interpolation of values from undamaged pixels on a fringe boundary, with guidance from a green channel.
Public/Granted literature
- US20100303350A1 Purple Fringing Artifact Reduction Public/Granted day:2010-12-02
Information query