Dilation

Dilation in physiological context may mean:

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• pupil dilation (mydriasis)
• dilation of blood vessels (vasodilation)
• cervical dilation (or dilation of the cervix) in childbirth
• Dilation and curettage (surgical dilation)

In mathematics:

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• Dilation

In morphological image processing (a subset of digital image processing):

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• Dilation (morphology)

Morphological image processing: A collection of techniques for digital image processing based on mathematical morphology. Since these techniques rely only on the relative ordering of pixel values, not on their numerical values, they are especially suited to the processing of binary images and grayscale images whose light transfer...