| Image fusion is a technique to combine information from multiple images of the same scene .In recent years, image fusion has been highly attached importance and has achieved successful applications in many fields because of its effective using of different channel image information.On the base of introducing basic theories about image fusion, the article narrates the methods and technical development of image fusion. In allusion to pixel-level fusion, the algorithm of image registration is studied and the method of image characteristic registration based on Sobel quick edge-detection is presented. Several image fusion algorithms, such as contrast modulation fusion, false color fusion and wavelet transform fusion have been adopted to realize the fusion of visual and infrared images. The fusion results are compared and the fusion technique is applied to Non-destructive Testing. In the end, a set of image processing and fusion system applied to Non-destructive Testing is realized. The system is developed with VC++6.0. |