Abstract: An image processing apparatus for generating visible output images, including visually distinct images. A processor generates displayable image data by writing data to a frame store which is repeatedly read therefrom. An input, preferably in the form of a mouse, supplies operator defined input signals to the processor for defining boundary lines (B1, B2) of an object and a sectional line (51), which identifies two boundary lines as defining the object. In addition, a data store is provided for storing data generated in response to the input signals and for storing attribute data defining visual attributes of the objects.

Abstract: Apparatus for generating an animated sequence of pictures consists of a store for storing data defining a plurality of pictures and data defining, for each, a temporal position in the sequence; and interpolator for reading stored data and generating therefrom data defining a plurality of intervening pictures occurring at time positions between those of said stored pictures, and providing a transition therebetween; and an editor for editing the data so as to amend the sequence.

Abstract: Apparatus and method for defining the form and attributes of an object in an image. The form and attributes of the object are defined in such a way that the attribute data can be modified without changing the form. Attribute data may include opacity, color, and object width. In detail, a path which represents the underlying skeletal form of an object in an image is generated from path control data, which may comprise data defining path control points. Values of an attribute of the object are specified at attribute points which have a position relative to the path. The attribute points may be varied without changing the form. The apparatus and method may be used for computer painting and to generate a matte or transparency image.

Abstract: An image processing apparatus for generating visible output images, including visually distinct images. A processor generates displayable image data by writing data to a frame store which is repeatedly read therefrom. Input means, preferably in the form of a mouse, supplies operator defined input signals to the processing means for defining boundary lines (B1, B2) of an object and a sectional line (51), which identifies two boundary lines as defining the object. In addition, storage means are provided for storing data generated in response to the input signals and for storing attribute data defining visual attributes of the objects.