An Image Contrast Measure Based on Retinex Principles

Autor: Alessandro Rizzi, Michela Lecca, Raul Serapioni
Rok vydání: 2021
Předmět:
Zdroj: IEEE Transactions on Image Processing. 30:3543-3554
ISSN: 1941-0042
1057-7149
Popis: The image contrast is a feature capturing the variation of the image signal across the space. Such a feature is very useful to describe the local image structure at different scales and thus it is relevant to many computer vision applications, like image/texture retrieval and object recognition. In this work, we present MiRCo, a novel measure of image contrast derived from the Retinex theory. MiRCo is robust against in-plane rotations and light changes at multiple scales. Thanks to these properties, MiRCo enables an accurate and robust description of the local image structure. Here we describe and discuss the mathematical insights of MiRCo also in comparison with other popular contrast measures.
Databáze: OpenAIRE