Boots – shoes – and leggings
Patent
1985-04-05
1987-02-03
Perkey, William B.
Boots, shoes, and leggings
364525, 364559, 358101, 358107, 358283, 382 8, 382 52, 382 54, 83701, G06F 1546, G06F 1566, H04N 718, H04N 140
Patent
active
046412441
ABSTRACT:
A method and apparatus for registering the halftone color separation films used in color picture processing. A digital picture is taken of two register points on each separation film, and the pictures (which may contain register marks) are analyzed by algorithmic processes in order to calculate the movement necessary to register the halftone picture details (or register marks). Based on the calculations, the films are punched to provide a pair of register holes in each film at locations which result in registration when the register holes are aligned on register pins during the final reproduction process. The algorithmic process involves determining the halftone screen angle, average interdot spacing and fractional area occupied by each halftone dot within its halftone cell and using this data to construct a continuous tone picture. Interpolation techniques are used to interpolate the continuous tone picture to a registration picture which is a 150 line screen picture square with the raw data picture. Edge enhancement and tone normalization algorithms are used prior to registration. The final machine movements to achieve registration are computed from an algorithm that registers all points of the pictures from translational move data at two points.
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Register Stripping Robot-brochure by Fujimac Trading Co., Ltd.
Anderson Frederick W.
Bendure William J.
Hutchison Victor E.
Wilson Monti R.
Opti-Copy, Inc.
Perkey William B.
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