Electronic image generation apparatus including a camera for recording a region and producing a control data array

Electronic image generation apparatus comprising a monitor;

• a colour data array for storing digital data defining the colour component content of pixels of an image;
• a control data array for storing control data for each display pixel;
• a colour data store for storing digital data defining the colour component content of pixels of one or more predetermined images;
• mixing means connected to said control data array and said colour data array for generating display pixel data comprising a combination of proportions of the data in the colour data array and other predetermined colour data from the colour data store, said proportions being in accordance with the control data, said monitor being responsive to said display pixel data;
• and a camera for viewing a region within which an indicator may be moved, the camera being connected to the control data array such that data relating to the appearance of the region is recorded in the control data array, wherein the digital data stored in the colour data array is replaced by the combined display pixel data when the appearance of the monitor is deemed satisfactory.