Mammography is a best technique for early detection of breast cancer. This paper deals with the detection of micro calcification on mammographic images. It appears as white speckles in images. Micro calcification is a tiny bit, which may not be clearly visible because of low contrast in the image. Our goal is to apply image processing technique to enhance the images and subsequently extract the features from the suspicious region with great accuracy and reliability to detect whether micro calcification is malignant or not.