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In the molten rock deformation experiments images often shaped by exposure of different photos stitched together, for the molten maldistribution problem of the mosaic effect, this paper presents a method based on quadratic threshold determination to balance, It can be seen, compared with the nonlinear dynamic range adjustment method, this method can better solve the problem of mosaic effect.
Sound absorption property in nonwovens requires specifying relationship with structural characteristic. Fractal approach seems to be a potentially useful tool to describe hierarchical systems and is suitable to link the structure and acoustic properties of nonwovens. In this paper, the pore area fractal dimension of nonwoven is calculated, and the sound absorbing behavior of nonwoven is measured....
In this paper, we propose a new watermarking method base on chaotic maps of Arnold and Logistic. The map of Arnold is used to permute the image and Logistic map is used as the second key to XOR the sequence produced from the Arnold map. Furthermore, the traditional binary embedding watermark sequence is generalized in our scheme, which makes the watermark embedding more flexible and convenient. Experiment...
An edge detection method by combining fuzzy logic and neural network is proposed in this paper. First, the distance measures between the feature vector in 4 directions and the six edge prototype vectors for each pixel are taken as input pattern and fed into input layer of the self-organizing competitive neural network. Classifying the type of edge through this network, the thick edge image is obtained...
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