Digital image processing is a kind of technology which employs a certain algorithm to realize image processing through computer algorithm. The powerful capacity of computing and graphics displaying function of Matlab makes image processing becomes more simple and intuitive. This paper introduces the basic knowledge of dealing with noise in digital image, expounds the neighborhood average method, median filtering in detail, and low pass filtering and other typical of eliminating noise method , and at the same time analyzes and compares the characteristics of several typical methods by use of the software Matlab.
By introducing the existing lack of industrial temperature control algorithm is applied, leads to the advantage of DMC algorithm industrial furnace temperature control, the next from the prediction model, rolling optimization, feedback correction of the three aspects of the principle of DMC algorithm is fully explained, on this basis, the preparation of Matlab procedures, simulation of the DMC algorithm in industrial furnace temperature control, thus indicating DMC algorithm in the field of industrial temperature measurement is a method should be promoted.
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