Ink jet printing apparatus that identifies a region adjacent to a character for a thinning operation

An ink jet printing apparatus that improves the visibility of a character and its background in different colors or of outline characters is provided. Specifically, outline character bold data is inverted and each of the pixels in the data is expanded to adjacent eight pixels. Then, the expanded out...

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Bibliographic Details
Main Authors NAGAMURA MITSUTOSHI, KANEMATSU DAIGORO, FURUICHI TOMOMI, SHIMAKAWA MASAHARU
Format Patent
LanguageEnglish
Published 14.01.2014
Subjects
CALCULATING
COMPUTING
CORRECTION OF TYPOGRAPHICAL ERRORS
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HANDLING RECORD CARRIERS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PHYSICS
PRESENTATION OF DATA
PRINTING
RECOGNITION OF DATA
RECORD CARRIERS
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:An ink jet printing apparatus that improves the visibility of a character and its background in different colors or of outline characters is provided. Specifically, outline character bold data is inverted and each of the pixels in the data is expanded to adjacent eight pixels. Then, the expanded outline character is processed into expanded inverted data. The logical AND of the inverted expanded data and K data on a background image is then calculated to generate K data with the outline character expanded. This results in an image with the outline character expanded. That is, the present invention enables characters with improved visibility and free from blurredness to be printed while preventing the adverse effect of bleeding on the outline character.
Bibliography:Application Number: US20070737920