Computerized method of generating film masters for embossing and

Details Computerized method of generating film masters for embossing and Computerized method of generating film masters for embossing and

1990-08-28

1991-12-24

Gorski, Joseph M.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283 67, 283 87, 283 94, 358234, B42D 1500, H04N 574

Patent

active

050745972

ABSTRACT:
A computerized technique for generating masters for embossing and printing color images with local regions of variation of an optical characteristic such as reflectance is disclosed. The color image is read into a computer and displayed on the computer screen. An electronic embossing mask is created for each local region which is to have a preselected optical variation. The line pattern is designated for each local region mask and an embossing film is exposed with each electronic embossing mask for creating in the embossing film a composite image including each line pattern in each local region. A plurality of electronic color separation masks are generated from the original color image, and each of these is combined with an electronic embossing mask to form an electronic line color separation mask having line patterns which correspond to those designated for the local regions. A plurality of color separation films are then exposed with each electronic embossing mask separation image for creating on each color separation film a single color image with the designated line patterns in local regions.

REFERENCES:
patent: 3980476 (1976-09-01), Wysocki
patent: 4196452 (1980-04-01), Warren et al.
patent: 4501439 (1985-02-01), Antes
patent: 4588212 (1986-05-01), Castagnoli
patent: 4626445 (1986-12-01), Dobrowolski et al.
patent: 4727418 (1988-02-01), Kato et al.

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