Many people around the world suffer from Brain tumor. It is not only affect the old age people but also affect the early age people. We can early identify the brain tumor using image processing. Medical image processing is the most advanced field today. Many scientist and researchers are working in the brain tumor detection process for improving the results .It plays a vital role. Brain tumor detection is helpful for the doctors to identify the early stages of tumor. The complex architecture of the brain makes it difficult to detect brain tumors using MRI imaging. This study uses a MATLAB GUI (Graphical User tool) tool to detect brain tumors from MRI images. Various image segmentation techniques can be used to process the MRI picture, segment the brain tumor, and segment the brain tumor. Pre-processing, picture segmentation, feature extraction, and image detection are the four categories into which the process of detecting brain cancers by MRI can be divided. In order to save time and labor, a method for removing brain tumors from magnetic resonance brain pictures was proposed in this article.