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General logarithmic image processing convolution

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Author
Palomares Muñoz, José Manuel
Prieto, Alberto
Ros, Eduardo
González, Jesús
Publisher
IEEE
Date
2006
Subject
Convolution
Logarithmic Image Processing (Lip) Average
Lip Sobel Edge-Detection
Lip Gaussian Blur
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Abstract
The logarithmic image processing model (LIP) is a robust mathematical framework, which, among other benefits, behaves invariantly to illumination changes. This paper presents, for the first time, two general formulations of the 2-D convolution of separable kernels under the LIP paradigm. Although both formulations are mathematically equivalent, one of them has been designed avoiding the operations which are computationally expensive in current computers. Therefore, this fast LIP convolution method allows to obtain significant speedups and is more adequate for real-time processing. In order to support these statements, some experimental results are shown in Section V.
URI
http://hdl.handle.net/10396/3956
Fuente
Ieee Transactions on Image Processing 15 (11), 3602-3608 (2006)
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