Fig. 7
From: Esmraldi: efficient methods for the fusion of mass spectrometry and magnetic resonance images
Validation of the segmentation approach. Curvature values are computed on the contours of the a MR image, and MALDI–MS segmented images using b our method and c the spatial chaos measure. The values range from low (flat areas, in blue) to high (salient points, in red). The values are close in all images, but the spatial chaos measure yields high curvature values in the posterior part of the tissue (circled in red) which are low for the MR image. This reflects a slightly incomplete segmentation in the case of the spatial chaos measure