Figure 1
From: The impact of image dynamic range on texture classification of brain white matter
MR image of brain glioblastoma and the surrounding white matter. Transversal slice of MRI of brain glioblastoma showing Tumor, T; and the normal white matter regions (solid lines): PtWm, Peritumoral; and DWm, Distant White matter. An ROI and the corresponding matrix are linked (red dashed lines) to illustrate the rescaling process. Matrix A represents the original ROI which has a dynamic range from 0 to 255 greylevels. The matrix B shows the same ROI after multiplying each pixel with the ratio of the maximum greylevel value allowed in B (31 in this case) to the actual maximum greylevel value of A.