The orientation accuracy of a general class of edge detection operator acting on binary and saturated grey-scale images is studied. An operator similar to the Sobel operator is found to have the best available accuracy, of about +/- 9.6-degrees, which is remarkably close to the figure of +/- 1.2-degrees for grey-scale images. In addition, performance necessarily degrades gracefully in the presence of noise.
机构:
Royal Holloway Coll, Dep of Physics,, Egham, Engl, Royal Holloway Coll, Dep of Physics, Egham, EnglRoyal Holloway Coll, Dep of Physics,, Egham, Engl, Royal Holloway Coll, Dep of Physics, Egham, Engl
机构:
Royal Holloway Coll, Dep of Physics,, Egham, Engl, Royal Holloway Coll, Dep of Physics, Egham, EnglRoyal Holloway Coll, Dep of Physics,, Egham, Engl, Royal Holloway Coll, Dep of Physics, Egham, Engl