Resources Contact Us Home
Image processing method and apparatus for face image

Image Number 5 for United States Patent #8121408.

An image processing method for a face image is provided. A skin area of a face is segmented from the face image. A brightness histogram of the skin area is generated. A skin shadow point and an eyeball point of the face are extracted from the skin area, the shadow point having a lowest brightness in the skin area. A modified histogram is generated by modifying the brightness histogram so as to correct a specific area having a lower brightness level than the eyeball point at a brightness level of the eyeball point, and to correct a specific portion in the skin area having a higher brightness level than the shadow point at a brightness level of the shadow point. The face image is thresholded in consideration of the modified histogram to produce a binary image or N-level encoded image.

  Recently Added Patents
Multilevel directory assistance apparatus and method
Method for controlling operation of a wind turbine
Method and apparatus for reacquiring lines in a cache
Method and apparatus for managing backup channel in multi-channel environment
Method and device for determining a set of frequencies that can be used for transmitting information between radio transceivers of a network operating with frequency hopping
Method, apparatus and computer program product for providing metadata entry
Methods for detecting DNA-binding proteins
  Randomly Featured Patents
Mathematical decomposition of table-structured electronic documents
Method of forming semiconductor device
One-step synthesis of CF.sub.3-1
End of a moldboard positioned proximate a milling drum
Eyeglass assembly
Chips arranged in plurality of planes and electrically connected to one another
Electrically insulated coils and a method of manufacturing thereof
Electronic assembly having means to prevent non-permitted disassembling of its components
HNS From 2,4,6-trinitrobenzyl chloride and nitrogenous bases