This article presents an organized methodology for brain tumor detection, based on MR image data enhancement. This methodology gives for huge clinical practice in the brain tumors detection that makes easy to identify the patient based on MR image data. In this paper, we propose a MATLAB Programming for separating tumor images in brain magnetic resonance (MR) data. The detection of tumor accuracy extremely seen by the MRI images data and tumor is clearly highlighted using proposed MATLAB Coding. These codes are used to enhance the MR image quality by increasing or decreasing the grey level (0 to 255) and further special filters. The MRI dataset confirms that this algorithm outcomes are more applicable to the ordinary output images to identify the brain tumors.