Image analysis – Pattern recognition – Feature extraction
Reexamination Certificate
2004-08-24
2008-10-14
Bali, Vikkram (Department: 2624)
Image analysis
Pattern recognition
Feature extraction
C382S266000, C382S176000, C382S173000, C382S192000
Reexamination Certificate
active
07437002
ABSTRACT:
An image processing apparatus processes an input image, in which an edge image is created by executing an extracting operation on the input image, and a binary image is created by performing a thresholding operation on the input image. A first partial thresholding unit creates an output binary image by extracting a character area from the input image, which corresponds to a character area identified from the created edge image, and performs a thresholding operation on the extracted character area. A second partial thresholding unit creates an output binary image by extracting a character area from the input image, which corresponds to a character area identified from the created binary image, and performs a thresholding operation on the extracted character area. An output unit outputs the output binary image created by said first partial thresholding unit and the output binary image created by said second partial thresholding unit to a memory, wherein the first partial thresholding unit determines whether a character in the extracted character area is a reversed character, and if it is determined that the character is a reversed character, creates an output binary image by reversing and performing the thresholding operation on the character area.
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Bali Vikkram
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Yeh Eueng-Nan
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