Automatic detection of calibration charts in images

Details Automatic detection of calibration charts in images Automatic detection of calibration charts in images

2007-06-08

2011-12-06

Mehta, Bhavesh (Department: 2624)

Image analysis

Color image processing

Pattern recognition or classification using color

C382S162000, C382S181000, C382S190000, C358S001900

Reexamination Certificate

active

08073248

ABSTRACT:
Methods and apparatuses for locating an embedded color chart in an image are described. In one exemplary method, an image that includes an embedded color chart is located without the intervention of the user. The embedded color chart is verified and used to create a color profile of the image. Furthermore, the orientation angle of the color chart is determined and the image orientation is fixed based on this angle.

REFERENCES:
patent: 6254385 (2001-07-01), Jung et al.
patent: 6726476 (2004-04-01), Jung et al.
patent: 2002/0051158 (2002-05-01), Ohkubo
patent: 2005/0128495 (2005-06-01), Arai
patent: 2008/0080781 (2008-04-01), Pote et al.
patent: 2009/0066819 (2009-03-01), Ando
patent: WO 2006098356 (2006-09-01), None

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