Browsing by Autor "Lina Wedefort"

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    On the 2D Teager-Kaiser Operator
    (2007) Julián Quiroga; Alfredo Restrepo; Lina Wedefort; María Velasco
    The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 years ago. It is a filter of the moving window type and is commonly used as an estimator of the local energy contents of a signal; it is also used as a contrast enhancer of gray level images. We state some properties of a 2D version of the operator and its responses to common images. We characterize some of its root and preconstant images, and consider the case of separable images.