Table 3 Performance of the colour channel misalignment artefact removal algorithm in images before and after removing specular highlights. SR: percentage of images where the colour channels were successfully realigned. USRND: percentage of images where the colour channels were not successfully realigned, however they were not distorted. USRD: percentage of images where the colour channels were not successfully realigned and they were also distorted. Dataset 1: 50 colonoscopy video frame with colour channel misalignment. Dataset 2: Dataset 1 after specular highlights are removed by the proposed algorithm.

From: Automatic Segmentation and Inpainting of Specular Highlights for Endoscopic Imaging