Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2007-06-12
2007-06-12
Lee, Thomas D. (Department: 2624)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S002100, C382S264000
Reexamination Certificate
active
09581437
ABSTRACT:
Even when a jaggy occurs in an original image, the image is accurately enlarged and a good image cannot be obtained as a result. In the case of performing pixel interpolation on an image in a dot matrix state, image data is entered in step100, the whole image is scanned while shifting a marked pixel, and whether or not an edge exists in the direction of 45 or 135 degrees by using the marked pixel as a reference is detected in step115. When an edge at 45 or 135 degrees exists, the edge is smoothed in the direction of either 45 degrees in step120or 135 degrees in step125. After that, pixel interpolation is carried out irrespective of the presence or absence of an edge. Consequently, when there are irregular edges, it can be prevented that an image is directly subjected to pixel interpolation and a jaggy occurs.
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Kuwata Naoki
Nakami Yoshihiro
Brinich Stephen
Lee Thomas D.
Seiko Epson Corporation
Sughrue & Mion, PLLC
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