IMAGE PROCESSING DEVICE AND METHOD FOR OPERATING ENDOSCOPE SYSTEM

摘要

A first signal ratio (−log(B/G)) between a B image signal and a G image signal is calculated. A second signal ratio (−log(G/R)) between the G image signal and an R image signal is calculated. A difference between first and second signal ratios in a first area and first and second signal ratios in a second area is increased to enhance a color difference between normal mucosa and an abnormal region (an atrophic mucosal region and a deep blood vessel region). An image after enhancing the color difference is displayed on a monitor.

主权项

1. An image processing device comprising:
an image signal inputting unit for inputting image signals of three colors; a signal ratio calculator for calculating a first signal ratio between the image signals of two colors and a second signal ratio between the image signals of two colors different from the first signal ratio, based on the image signals of three colors; a color difference enhancer for performing a first expansion process, the first expansion process expanding a difference between first and second signal ratios in a first area and first and second signal ratios in a second area different from the first area; and a display unit for displaying an image in which a color difference between normal mucosa and a first abnormal region on an object of interest is enhanced based on the first and second signal ratios subjected to the first expansion process.