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
Manufacturing process for cellular screening substratum, resultant substratum, and method and apparatus for screening
Method for exchanging data concerning an electronic transaction
Real-image zoom viewfinder and imaging apparatus
Integrated circuit devices having conductive structures with different cross sections
Electrical converter with variable capacitor
Monitoring of undesirable fluid ingress into subsea control modules
Photoacoustic joulemeter utilizing beam deflection technique
  Randomly Featured Patents
Footwear scraping apparatus
Method for forming crystal
CCD image sensing device having a p-well region with a high impurity concentration
Methods and apparatus for managing and controlling power consumption and heat generation in computer systems
Method and apparatus for keep-alive bits transmission
Process for producing free flowing powder and product
D.C. relay with power reducing function
Dynamic mechanism to upgrade o state memory-consistent cache lines
Ball-and-socket joint assembly tool and method
Chassis device having vented base and radiation member for supporting heat sources