Method and system for color film separation preprocess using electronic object-based choking and spreading procedures including object combining operations

A spreading method, comprising the steps of:

• defining a first and second object with a first path which traces the outline of the first object and a second path which traces the outline of the second object on a page of a display of a display medium, said first and second objects each having at least a single zone;
• providing said first object with a spread table defining a spread zone, a spread zone color, a receiving zone, a receiving zone color, a spread width, and a spread color for an overlapping portion of said first and second object;
• comparing each zone of said first object and each overlapping zone of said second object with said spread table to establish a spread incidence for spreading said spread zone of said first object to a receiving zone of said second object;
• limiting a paintable region of said page to said receiving zone of said second object;
• generating a temporary object defined by subtracting an obstructing object lying on top of said spreading zone;
• and
• stroking said temporary object within said paintable region with said spread color and said spread width.

A method for spreading a first object into a second object in the presence of an obstructing object which obstructs the first object wherein said first, second, and obstructing objects are defined with discrete paths which which trace outlines of the first, second an obstructing objects on a page, comprising the steps of:

• defining a temporary object from a portion of the first object that would be visible upon a rendering of the first object, the second object and the obstructing object;
• limiting a paintable region of the page to the interior of the second object;
• and
• stroking said temporary object within the paintable region.