Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2004-10-28
2009-06-02
Poon, King Y (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S001200, C358S001900, C358S003060, C358S003070, C358S003240, C358S003260, C358S525000, C358S532000, C358S534000, C358S536000, C382S237000, C382S242000, C382S264000, C382S266000, C382S267000, C382S268000, C382S269000, C382S299000, C345S611000
Reexamination Certificate
active
07542174
ABSTRACT:
An image processing method for reducing jaggy effect, which is applied in an image output device, is provided. Firstly, a continuous tone image is generated, and continuous tone pixels are defined according to a first addressing space. Then, a halftone image is generated. After that, the continuous tone image is low-pass filtered to generate a low-pass filtered image. Next, determine whether a position of the low-pass filtered image whose density is approximate to a pre-determined density. If so, generate a set of second addressing space co-ordinates of a key point corresponding to the position. Then, a moving vector corresponding to the key point is generated so as to regulate the position of a display point of the halftone pixel. Afterward, output the display point according to the position after regulation.
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Poon King Y
Qisda Corporation
Zhu Richard Z
LandOfFree
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