Brain tumor detection

The brain tumor detection is mainly an image processing technique. The proper diagnosis or brain tumor can make easy to save the patient life to some extent [1]. The brain MRI is most commonly used techniques for brain tumor detection. There are mainly five basic steps in brain tumor detection [2, 3, and 4].

Pre-prpcessing

The MRI image can be obtained from the patient data base on the computer when the person
undergoes the MRI scanning. Grayscale is a range of shades of gray without apparent color. The darkest possible shade is black, which is the total absence of transmitted or reflected light. The lightest possible shade is white, the total transmission or reflection of light at all visible wavelengths. So because of the above reasons first we convert out MRI image to be pre-processed in grayscale image. A preprocessing stage considered to remove noise and enhance of an image before segmentation.
Median Filter