Patent · US Active

Apparatus, method, and program for image correction

US8351729B2 · kind B2 · utility

0Cited by
2References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 30, 2010
Grant dateJan 8, 2013
Priority date—
Expiry dateJun 7, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T5/20
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

To perform image correction according to the features of an input image and output a fine and conspicuous image corresponding to a variety of scenes; an image correcting apparatus detects, from the pixels of the input image, the dark pixels that have the respective pixel values equal to or smaller than a first threshold value. Then, for each dark pixel having the pixel value equal to or smaller than the first threshold value, the image correcting apparatus detects calculates the shading variation between the dark pixel and the corresponding surrounding pixels, calculates a correction amount based on the calculated shading variation, and performs image correction with the calculated correction amount.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.