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