Image processing

Details Image processing Image processing

2005-07-05

2005-07-05

Lee, Thomas D. (Department: 2624)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003060, C358S003130, C382S232000, C382S235000

Reexamination Certificate

active

06914699

ABSTRACT:
Noise adding unit700reads the downloaded target JPEG image from memory and adds designated noise to that JPEG image. Reverse DCT transformation unit710performs reverse discrete cosine transformation on the noise-added JPEG image, and transforms it from space frequency to spatial coordinates. Binarization unit720binarizes the image that has been expanded to spatial coordinates.This makes it possible to achieve the same processing as half-tone processing on images that have undergone normal orthogonal transformation without putting a large burden on the CPU, etc. and with a small data volume even when transferring via a communication path.

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