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Automatic face and skin beautification using face detection

A face and skin color technology, applied to computer parts, filling planes with attributes, character and pattern recognition, etc., can solve problems such as spending a lot of time

Inactive Publication Date: 2011-04-20
FOTONATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Users can spend a lot of time with traditional software hiding wrinkles and blemishes to make portraits more beautiful

Method used

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  • Automatic face and skin beautification using face detection
  • Automatic face and skin beautification using face detection
  • Automatic face and skin beautification using face detection

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Embodiment approach

[0085] It can be of great advantage when certain implementations are provided on digital cameras, especially on hand-held devices equipped with cameras. The method can advantageously be performed using specific data from a face detector or even a face tracker (data from multiple image frames). In one embodiment, enhanced face images can be dynamically obtained from a face tracker module. It may be advantageous to use PCA to determine the main skin color, and two other color space dimensions to determine the variation from that color. The method may include decorrelating the color space into a "primary skin" and a "secondary skin". Using the "secondary skin" dimension to determine "good skin" is also beneficial for skin detection. Smaller images can be used for detection, while localized smoothing kernels can be applied to the full image, saving precious processing resources and bringing huge advantages to handheld devices. Two skin maps can be used, including an "exclusive"...

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Abstract

Sub-regions within a face image are identified to be enhanced by applying a localized smoothing kernel to luminance data corresponding to the sub-regions of the face image. An enhanced face image is generated including an enhanced version of the face that includes certain original pixels in combination with pixels corresponding to the one or more enhanced sub-regions of the face.

Description

technical field [0001] The present application relates to image processing, in particular to image processing of subregions detected in facial images. Background technique [0002] US Patent 6,571,003 to Proctor and Gamble mentions finding and repairing facial imperfections in sub-regions of the face (e.g. cheeks) or in regions defined by landmark points such as corners or nose, eyes or mouth (such as spots, wrinkles, pores and texture). This technique involves replacing a defined area with a mask. The P&G patent discloses changing color electronically. [0003] The P&G patent also mentions detecting and correcting for illumination gradients and illumination changes. These lighting gradients or changes may occur in the presence of directional lighting that may cause shinier or lighter areas on the skin of the face. US Patent Application Serial Nos. 12 / 038,147, 61 / 106,910, and 61 / 221,425, assigned to the assignee of the present application, describe techniques for detecti...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06K9/00H04N5/232
CPCH04N5/2621G06T11/60G06K9/00221G06T5/001H04N2101/00H04N9/04G06T2207/30201G06T5/002H04N5/23229G06V40/161G06T5/77G06T5/80G06T5/70H04N23/95H04N23/10G06V40/16G06T11/40G06V40/165G06V40/171H04N23/40H04N23/80
Inventor M·希乌克A·卡帕塔A·波索辛C·弗罗雷亚P·科尔科兰V·莫卡努
Owner FOTONATION LTD
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