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- W79768305 abstract "Image transforms are used extensively in image processing to convert one image form into another form. These transforms are either point-operation transforms or neighborhood-operation transforms. Injective transforms, also known as reversible or one-to-one transforms, are a subset of point-operation transforms where each intensity value maps to a distinct intensity value. In this paper we present a no vel t echnique that can identify if an image was processed b y an injective transform. The injective mapping is also recovered in the process. The technique is applicable to bo th linear and non-linear transforms. We introduce two measures that assess the degree of injective mapping and the degree of f unctional mapping of the transform. The technique is based on the attributes of t he image v ariation nu mber which is an entropysimilar informative measure. Tests are conducted on real images to show the validity of our technique." @default.
- W79768305 created "2016-06-24" @default.
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- W79768305 date "2002-01-01" @default.
- W79768305 modified "2023-09-27" @default.
- W79768305 title "Identification and Recovery of Injective Transforms" @default.
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