Electronic image enhancement

摘要: An electronic image processing system, using dissection by solid state devices or scanning and sampling, applies a signal representing succession of values on an array picture elements to complementary high low pass filters produce output in which desired feature is enhanced noise suppressed. The filter, e.g. Figure 1, comprises at least one pair weighting gradient detectors, Figures 3 5, arranged back-to-back detect brightness transition 10, as shown 4 6, having their outputs cored independently. Each will be sensitive gradients particular direction the array, horizontal, vertical diagonal. system applicable two-dimensional spatial arrays, three dimensional also temporal dimension, moving pictures.