Introduction: Doctoral Dissertation of Zhejiang University This paper conducts an in-depth study on two important processing techniques in the field of image processing: image interpolation and image scaling. Based on the analysis of the existing interpolation and scaling technologies, the research results are given in the following aspects. Doctoral Dissertation of Zhejiang University -6 - Learning Model. The example shows that the new method has better solved the boundary blur phenomenon of objects in the image and achieved a relatively ideal processing effect. (4) Multi-scale representation of binary images A new multi-scale representation method for binary images is proposed. This method is based on the visual characteristics of human beings. Starting from the centroid of the object in the image, by establishing a local coordinate system, each object in the image is subjected to a relatively \"tight\" shrinkage transformation in its own coordinate system. This method is different from previous methods. It can maintain the symmetry of the source image and has the basic preservation of shape and even topology. Then, an optimization scheme for multi-scale representation of images is proposed. This scheme can be regarded as a criterion for judging the quality of image representation, and can also be used as a mathematical description of multi-scale representation of images.
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