High resolution digital image registration

Details High resolution digital image registration High resolution digital image registration

1990-01-05

1994-06-07

Envall, Jr., Roy N.

Boots, shoes, and leggings

36441316, 382 52, 382 53, 382 61, 395133, 395138, 395141, 348135, G06F 1542, G06F 1562

Patent

active

053195507

ABSTRACT:
The center of a reference mark is located by decreasing the range of pixel values defining an image defect. The pixel values defining the digital image are then enhanced to amplify the pixel values representing the reference mark and decrease the pixel values representing the background. The center of the digital image of the reference mark is determined from the altered image.

REFERENCES:
patent: 5070454 (1991-12-01), Griffith
patent: 5091963 (1992-02-01), Lih et al.

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