The preprocessing section performs intensity inhomogeneity correction, background noise removal and removes non brain tissues such as: skull and fat from head MRI scans. The second component of the framework, tumorous slice detection and in third step, symmetry axis extraction is carried out on spatially aligned and fused MR images to identify the mid-sagittal plane of the brain. Finally, histograms of images to the right and left of the mid-sagittal plane are analyzed using Jeffrey divergence to initially identify the existence of tumor.

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