On the Conditions of Absorption Property for Morphological Opening and Closing
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This paper aims to establish the theoretical foundation for shift inclusion in mathematical morphology. In this paper, we prove that the morphological opening and closing concerning structuring elements of shift inclusion property would preserve the ordering of images, while this property is important in granulometric analysis and related image processing tasks. Furthermore, we proposed a systematic way, called the decomposition theorem for shift inclusion, to construct sequences of structuring elements with shift inclusion property. Moreover, the influences of the image domain are discussed and the condition named weak shift inclusion is defined, which is proved as an equivalent condition for ensuring the order-preserving property.
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