SYSTEM AND METHOD FOR RETINEX PROCESSING OF ENCOSCOPIC IMAGES WITH VARIABLE FIELD-OF-VIEW, AND A RECORDING MEDIUM HAVING COMPUTER READABLE PROGRAM FOR EXECUTING THE METHOD

摘要

The Retinex image processing system of an endoscopic image includes an image separation unit, an illumination processing unit, an image synthesis unit, an angle of view mask detection unit, and an image improving unit. The image separator separates the input image and calculates a reflection map for a reflection component and an illumination map for an illumination component corresponding to each pixel of the input image, respectively, and the illumination processing unit illuminates the illumination in the illumination map. The brightness is changed, the image synthesizing unit calculates a synthesized image of the processed reflection map and the illumination map, and the field of view mask detector detects a field of view (FOV MASK) that is a field of view (FOV) area among the input images. The enhancement unit performs a preset image enhancement process using the detected angle of view mask. According to this configuration, by detecting the angle of view mask from the input endoscopic image and performing image improvement processing using it, stable and consistent Retinex image processing can be performed even in a situation where the angle of view is variable when processing the Retinex image of the endoscopic image. there will be