Figure 6.

Bland–Altman plots of vascular feature agreement between expert annotation and AutoMorph segmentation at Zone B. The first two row features (e.g., tortuosity, fractal dimension) were calculated with the binary vessel segmentation map from DR HAGIS; the last row features (caliber) were measured with the artery/vein segmentation map from IOSTAR-AV. In each subplot, the central line indicates the mean difference and two dashed lines represent 95% limits of agreement. The unit of average width, CRAE, and CRVE is the pixel, as resolution was unknown.