Research Article

Feature-Based Retinal Image Registration Using D-Saddle Feature

Figure 9

Examples of matched D-Saddle points between the image pair (1st and 2nd columns) and their registered image with landmarks (3rd and 4th columns) in each category of FIRE dataset. 3rd column: blended overlay image in which yellow represents areas with similar intensity. 4th column: difference in the image in which black represents areas with similar intensity.