Image retouching.

摘要

A method and apparatus for electronically retouching an image are described. The apparatus comprises a source (1) of colour component image signals representing the colour component values for the picture elements of the image to enable the image to be displayed on a monitor screen (8). A source (9) of colour data is provided representing the colour component values of a first range of colours, adjacent colours differing from each other by more than a predetermined amount. Control means (2) such as minicomputer causes the monitor screen (8) to display the first range of colours. Operator-control means (3) such as a digitising table enables the operator to select one of the displayed colours, whereby the control means (2) thereupon causes the monitor screen (8) to display a second range of colours centered on the selected colour, adjacent colours of the second range differing from each other by less than the predetermined amount, the operator-control means (3) enabling the operator to select one of the second range of colours. A store (10) is provided for storing data representing the colour component values of the selected one of the second range of colours.