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Abstract

Methods and arrangements are provided to apply trapping techniques to print image data prior to printing. The trapping techniques employ a trapping process that is designed to detect edges between different color regions that are susceptible to gap/halo formation due to registration errors. The trapping process selectively modifies the print image data associated with the color regions near the edge to provide an overlap of color planes that significantly reduces the potential for gap/halo formation in the subsequently printed image. The trapping process buffers an array of print image data, categorizes the print image data in the array by color, detects if an edge exists in the array based on the categorized colors, and selectively modifies print image data associated with the edge based on neighboring print image data. The modified print image data can then be used to print out the image.

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First Claim