METHODS FOR BACKGROUND AND NOISE SUPPRESSION IN BINARY TO GRAYSCALE IMAGE CONVERSION

METHODS FOR BACKGROUND AND NOISE SUPPRESSION IN BINARY TO GRAYSCALE IMAGE CONVERSION

One embodiment is a method for suppressing background inaccuracies in binary to grayscale image conversion. A binary image is converted to a grayscale image using a neighbor map. An image enhancement function is applied to the grayscale image to suppress background inaccuracies in the grayscale imag...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CASSIDY JOHN CHRISTOPHER, WU JOHN W, TSE FRANCIS KAPO, LEE CHIA-HAO, NAGARAJAN RAMESH
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:One embodiment is a method for suppressing background inaccuracies in binary to grayscale image conversion. A binary image is converted to a grayscale image using a neighbor map. An image enhancement function is applied to the grayscale image to suppress background inaccuracies in the grayscale image. Another embodiment is method for converting a binary pixel of a binary image to a grayscale pixel of a grayscale image and suppressing noise in the grayscale image using selective filtering of the binary image. Another embodiment is a method for converting a binary image to a first grayscale image and suppressing noise in the first grayscale image to produce a noise suppressed grayscale image using selective filtering of the first grayscale image.