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
Electronic device
Apparatus and method for detecting vertical blanking interval
Printing medium supplying apparatus and image forming apparatus having the same
Method and apparatus for establishing a media path between a gateway system and a border element
Apparatus and method for testing a capacitive transducer and/or associated electronic circuitry
Apparatus and system for imaging currency bills and financial documents and method for using the same
Frame-steered vehicle and a method for controlling a frame-steered vehicle
  Randomly Featured Patents
Non-flooding set rate feeder
Method and apparatus for lining process tanks
Clip for assembling the base to the top ring of metal framework tables
Polymer impregnated wood and process for preparing the same
Portable router
Shedding drive arrangement
Palladium-containing fixed-bed catalyst for the hydrogenation of butyne-1,4-diol to butene-2-diol-1,2
Automated ink-jet printhead alignment system
Method to electronically alter a speaker's emotional state and improve the performance of public speaking
Method of producing a reinforced file folder