The judgment of funds image dinition

In medicine, whether the fundus image is clear or not would affect the doctor´s diagnosis of the disease. In this paper, the feature vector of clear or blurred image is constructed by the fundus image edge degree and the transformed energy of the wavelet coefficients. The fisher criterion is adopted in order to determine the optimal projection direction and boundaries of the classifier threshold to classify the clear image and fuzzy image. The method has certain reference for image clarity with similar image feature judgment.