Method and apparatus for generating thin lines in video images
AssigneeKoninklijke Philips Electronics N.V.
InventorsErwin Bellers, Jan Caussyn
Life of this patent
Estimating the term…
Abstract
A method and apparatus for thinning lines in a video, includes providing a line signal (15) of a video, the line signal (15) having pair of spaced apart transitions (16) which slope toward one another and merge at an edge (17) of a first thickness, the first thickness of the edge generating a line of a given width in the video. At least one of the transitions (16) is moved toward a center of the edge (17), to produce a new line signal (18) having an edge (19) of a second thickness which is less than the first thickness, thereby reducing the given width of the line in the video.
Claims28
A method of thinning lines in a video, the method comprising the steps of:
- providing a line signal (15) of a video, the line signal (15) having pair of spaced apart transitions (16) which slope toward one another and merge at an edge (17) of a first thickness, the first thickness of the edge (17) generating a line of a given width in the video;
- and
- moving at least one of the transitions (16) toward a center of the edge (17), to produce a new line signal (18) having an edge (19) of a second thickness which is less than the first thickness, thereby reducing the given width of the line in the video.
An apparatus for thinning lines in a video, the apparatus comprising:
- means (30, 300) for calculating an adjustment signal from a line signal (15) having pair of spaced apart transitions (16) which slope toward one another and merge at an edge (17) of a first thickness, the first thickness of the edge (17) generating a line of a given width in the video;
- and
- means (60, 700) for combining the adjustment signal with the line signal (15) to move at least one of the transitions (16) toward a center of the edge (17), to produce a new line signal (18) having an edge (19) of a second thickness which is less than the first thickness, thereby reducing the given width of the line in the video.
An memory medium for thinning lines in a video, the memory medium comprising:
- code (30, 300) for calculating an adjustment signal from a line signal (15) having pair of spaced apart transitions (16) which slope toward one another and merge at an edge (17) of a first thickness, the first thickness of the edge (17) generating a line of a given width in the video;
- and
- code (60, 700) for combining the adjustment signal with the line signal (15) to move at least one of the transitions (16) toward a center of the edge (17), to produce a new line signal (1 8) having an edge (1 9) of a second thickness which is less than the first thickness, thereby reducing the given width of the line in the video.
Dependencies are inferred from the claim text.