The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1986
Filed:
Mar. 25, 1983
Peter C Pugsley, Middlesex, GB;
Crosfield Electronics Limited, London, GB;
Abstract
This concerns retouching a set of n input image signals (1), one for each of the image printing colors, by converting these signals into a set of signals in a format (R, G, B) suitable for displaying the image on a monitor (3) to be viewed by an operator controlling the retouching. The converter (21) simulates the effect of the characteristics of the printing inks. In the present invention, for a rapid monitor response during retouching, the operator first generates, outside the main signal path from the image source to the monitor, a record (A) of n one-dimensional modifying functions corresponding respectively to the n printing colors. These printing-color modifying functions are converted into monitor-format modifying functions for storing in respective one-dimensional stores (B) in the said main signal path, where they modify the monitor-format image signals and therewith the displayed image. The same converter (21) and stores (A) may be used both to effect the conversion of the modifying functions and to effect conversion in the main signal path (position A1) in a subsequent slower 'viewing mode' operation in which all input image signals are modified by the printing-color modifying functions (A) and are then passed through the converter (21) for a more accurate display of the modified image.