Canon Kabushiki Kaisha

Paul Quentin Scott

Cameron Bolitho Browne

Timothy Merrick Long

Gerard Anthony Hill

Michael Richard Arnold

Stephen Robert Bruce

Nicolas Leslie Coleman

Richard M Antill

Jeremy D M Thorp

A method of creating a series of font characters () on a computer system () is disclosed. A series of font outlines () and source artwork (); a series of manipulation tools () for the manipulation of aspects of the outlines and artwork. Such an arrangement provides for the creation of substantially arbitrarily complex font structures from the outlines, artwork and manipulation tools. A series of font characters is then formed through the application of the complex font structures to each of a base font outline in the series of font characters. Preferably, the complex font structures can comprise a graphical expression tree of operations () to be performed in the creation of a font and the tree includes an outline of a font character. The manipulation tools can include tools for distorting, replacing or compositing the outline of a font and can further include the tools for the application of morphological and non-morphological effects to the font outlines. A data structure for such font creation is also disclosed which includes records () of attributes of glyphs used to form the outlines including their shape, color, opacity and where appropriate compositing or blending with graphic object or pixel-based images.

Font architecture and creation tool for producing richer text

The present invention discloses a user interface system which enables the parameters (eg character infilling, character color, character opacity, color saturation, etc) of a character font (or other image) to be selected in sequence. Of the maximum possible combination of selectable sequences, some are disabled in order to deliberately simplify the choice available to the user. The disablement is preferably selectively activatable to assist first time and new users but not inhibit experienced users. The characters (FIGS.and) are able to be generated on a conventional general purpose computer (). The interface system is vendible as a computer program product.

Apparatus and method of varying font parameters

The kerning of text modified in various ways is disclosed. The text can be modified by distortion or perturbation. In one way no unmodified text character pair kerning distance is stored. The kerning distance (x) is calculated as typesetting proceeds. In another way, an unmodified text character pair kerning distance (k ) is used but modified by the amplitude of the text perturbing functions.

Automatic kerning of text

The present invention discloses a method, apparatus and computer program product for positioning a plurality of sub-images such as spheres or circles within a bounded image (such as a character). The size (eg radius) and/or packing density of the sub-images can be varied in accordance with the distance of a point where the sub-image is to be located from a reference line ( ) which can be internal or external of the bounded image. The use of actual and virtual dimensions (r , r ) enables overlapping and spaced apart sub-images to be created. A threshold test is also able to prevent display of sub-images below a certain size.

Method and apparatus for parametric variation of text

A method and apparatus manipulates thumbnail images as used in image-based browsing file management systems. Zooming in and out of thumbnail images can be performed without a continued need to decompress a true image thus providing for faster operation. Pixel interpolation and/or replication are used to generate intermediate images that are displayed to deliver to the user a perception of a transitory zoom yet are of sufficient detail to maintain user orientation. Aspect ratio zooming of thumbnail containment areas is also disclosed which facilitates ease of browsing. The compression of thumbnail type images using a discrete wavelet transform facilitates the fast zoom of thumbnails and their associated containment areas.

Thumbnail manipulation using fast and aspect ratio zooming, compressing and scaling

A method and apparatus for creating an animated font character based on an initial non-animated font character. Initially, a glyph representative of at least one aspect of the non-animated font character is provided. A first predetermined function is then applied to the glyph, thereby to generate a modified glyph. A second predetermined function is then provided, for generating an output dependent upon a value of a variable parameter having an initial value. A visual appearance of the modified glyph is based at least partly on the output of the second predetermined function. The modified glyph is then rendered and the value of the variable parameter is altered. The rendering and altering steps are then repeated, which results in the generation of a plurality of rendered modified glyphs that together define an animated font character. Finally, the animated font character is displayed or stored for subsequent reproduction.

Growing community of inventors

Pymble, Australia

Paul Quentin Scott