1. A method for identifying at least one pixel in a raster image buffer for inclusion in a processing space, the method comprising: analyzing a tag-field associated with the at least one pixel, wherein the tag-field identifies object types associated with the pixel; assigning an algorithm-specific action directive to the pixel based on a value of the tag-field, wherein a plurality of tag-fields are stored within a tag plane, each tag-field from the plurality of tag-fields corresponding to one or more algorithm-specific action directives, each of the one or more algorithm-specific action directives corresponding to one or more object types, the value of the tag-field indicating the corresponding one or more algorithm specific action directives to assign; and including the pixel in the processing space based on at least one of the values of the action directive.