Global gray-level deformation removal in images

Jacek Pniewski; Arkadiusz Sagan; Tomasz Szoplik

doi:10.1117/12.545141

21 November 2003 Global gray-level deformation removal in images

Jacek Pniewski, Arkadiusz Sagan, Tomasz Szoplik

Proceedings Volume 5259, 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics; (2003) https://doi.org/10.1117/12.545141
Event: 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of contemporary Optics, 2002, Krzyzowa, Poland

Abstract

We present a method for elimination of global intensity deformation in gray-scale images using contrast control based on image resolution manipulation. During the process, a Gaussian pyramid representation of an input image is constructed by means of low-pass filtering and sampling of successive pyramid levels, where the input image constitutes the first (zero) level of the pyramid. In the second step, a Laplacian pyramid is built, through subtracting successive levels of the Gaussian pyramid. Then, all levels in the Laplacian pyramid are expanded to the original image size and added with weights, to reconstruct the image. An algorithm and a computer routines library written in object programming language C++ are developed.

Citation Download Citation

Jacek Pniewski, Arkadiusz Sagan, and Tomasz Szoplik "Global gray-level deformation removal in images", Proc. SPIE 5259, 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics, (21 November 2003); https://doi.org/10.1117/12.545141

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KEYWORDS

Image processing

Image filtering

Linear filtering

Algorithm development

Image resolution

C++

Computer programming

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