IMAGE DYNAMIC-RANGE ENHANCEMENT AND STABILIZATION IN THE CONTEXT OF THE LOGARITHMIC IMAGE-PROCESSING MODEL

被引：55

作者：

JOURLIN, M

PINOLI, JC

机构：

[1] Département Traitement de l'Information, Ecole Supérieure de Chimie, Physique et Electronique, F-69002 Lyon

[2] Laboratoire de Traitement du Signal, Faculté des Sciences et Techniques, Université de Saint-Etienne, F-42023 Saint-Etienne Cedex 02

[3] Pechiney, Centre de Recherches, F-38340 Voreppe

来源：

SIGNAL PROCESSING | 1995年 / 41卷 / 02期

关键词：

IMAGE ENHANCEMENT; DYNAMIC RANGE STABILIZATION; LOGARITHMIC IMAGE PROCESSING;

D O I：

10.1016/0165-1684(94)00102-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Images of a scene observed under a variable illumination or with a variable optical aperture are not identical. Does a privileged representant exist? In which physical setting? In which mathematical context? With which meaning and criterion? How to obtain it? The authors answer to such questions in the physical setting of logarithmic imaging processes, For such a purpose, they use the logarithmic image processing (LIP) model, known to be a compatible mathematical framework. After short recalls on this model, the paper presents two image transforms: one performs an optimal enhancement and stabilization of the overall dynamic range, and the other does of the mean dynamic range. The results obtained on X-ray images, as well as for some natural scenes, are shown. Also the implementation of the transforms is addressed.

引用

页码：225 / 237

页数：13

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