According to the characteristics of nuclear medical image, a contrast stretching algorithm of smoothed image is provided.
根据核医学图像的特点，给出了核医学图像的平滑对比度拉伸处理算法。
In this algorithm, the morphological operations are non-dual and the contrast stretching operations are addition instead of multiplication.
新算法主要特点是形态运算采用非对偶运算，对比度拉伸运算采用加法代替乘法运算。
By contrast, vertical brand stretching involves a change in product formulae, packaging and pricing to reach a wider range of customers.
相反，纵向品牌延伸包括改变产品的配方、装和定价，以接近更多顾客。
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