Description: The method of generating trigonometric function is suggested as a new efficient way to derive various moment
invariants，and it describes an extraction method of global shape feature of image based on Hu moment invariant and the
correlative algorithm. The experimental results illuminate that the shape features extracted by this approach is，rotation and
scaling to be which is translation rotation and soale invariance.
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不变矩及其在基于形状特征图像检索中的应用.pdf
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