Differential image adjustments

Details Differential image adjustments Differential image adjustments

2007-07-17

2010-02-02

Kassa, Yosef (Department: 2624)

Image analysis

Image transformation or preprocessing

Correlation

C382S209000, C382S219000

Reexamination Certificate

active

07657119

ABSTRACT:
Methods and apparatus implementing systems and techniques for adjusting images. In general, in one implementation, the technique includes: receiving input defining an adjustment to be applied to a differential representation of a source image, calculating the differential representation of the source image, producing a structural representation of the source image, the structural representation corresponding to multiple types of contrast in the source image, modifying the differential representation based on the structural representation and the input defining the adjustment, and generating a modified image from the modified differential representation by solving a Poisson differential equation.

REFERENCES:
patent: 5671395 (1997-09-01), Akiyama
patent: 5712474 (1998-01-01), Naneda
patent: 5790692 (1998-08-01), Price et al.
patent: 5846189 (1998-12-01), Pincus
patent: 5880977 (1999-03-01), Syo
patent: 5991456 (1999-11-01), Rahman et al.
patent: 5995912 (1999-11-01), DeWolf et al.
patent: 6057935 (2000-05-01), Freeman
patent: 6196715 (2001-03-01), Nambu et al.
patent: 6236750 (2001-05-01), Garber
patent: 6275600 (2001-08-01), Banker et al.
patent: 6512845 (2003-01-01), Haikin et al.
patent: 6628842 (2003-09-01), Nagao
patent: 6744544 (2004-06-01), Nagashima et al.
patent: 6788340 (2004-09-01), Chen et al.
patent: 6847738 (2005-01-01), Scognamiglio et al.
patent: 6870575 (2005-03-01), Hibi et al.
patent: 6912071 (2005-06-01), Rasmussen et al.
patent: 6990249 (2006-01-01), Nomura
patent: 7006079 (2006-02-01), Kidode et al.
patent: 7072503 (2006-07-01), Prince
patent: 7072524 (2006-07-01), Yamada
patent: 7102638 (2006-09-01), Raskar et al.
patent: 7149344 (2006-12-01), Prince
patent: 7177481 (2007-02-01), Kaji
Z. Rahman, D. Jobson and G. Woodell; “A Multiscale Retinex For Color Rendition and Dynamic Range Compression,” College of William & Mary, Williamsburg, VA.
R. Fattal, D. Lischinski and M. Werman; “Greadient Domain High Dynamic Range Compression,” Jul. 2002, School of Computer Science and Engineering, The Hebrew University of Jerusalem.
B. Horn; “Determining Lightness from an Image,” Jun. 1974, Massachusetts Institute of Technology, Cambridge, Massachusetts.
B. Horn; “On Lightness,” Oct. 1973, Massachusetts Massachusetts Institute of Technology, Cambridge, Massachusetts.
L. Yu and C. Dyer; “Direct Computation of Differential Invariants of Image Contours from Shading,” University of Wisconson, Madison, Wisconsin.
“Land's Retinex theory,” Website: http://kybele.psych.cornell,edu/.

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