Image analysis – Image transformation or preprocessing – Combining image portions
Reexamination Certificate
2006-09-12
2006-09-12
Shah, Sanjiv (Department: 2627)
Image analysis
Image transformation or preprocessing
Combining image portions
C382S294000, C345S629000
Reexamination Certificate
active
07106913
ABSTRACT:
A method of processing digital source images, each represented by pixel matrices, to obtain from two or more source images, representing one and the same real scene and acquired by utilizing different exposure levels, a final digital image capable of reproducing the real scene with an exposure latitude greater than that of each of the source images. The method, which can be advantageously used in digital still cameras, produces the final image by combining the source images with the help of a weighted average constructed pixel by pixel. Thanks to a special filtering to which the weighting coefficients are subjected before the weighted mean operation, the method obtains a final image in which the source images are harmoniously combined with each other.
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Battiato Sebastiano
Castorina Alfio
Mancuso Massimo
Graybeal Jackson Haley LLP
Jorgenson Lisa K.
Santarelli Bryan A.
Shah Sanjiv
STMicroelectronics S. r. l.
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