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an-enhancement-in-detection-of-brain-tumor-through-image-fusion-and-ann-

Medical image fusion is the process of combining two different modality images into a single image. The resultant image can help the physicians to extract features that may not be easily identifiable in an individual modality images. This paper aims to demonstrate an efficient method for detection of brain tumor from CT and MRI images of the brain, by applying image fusion, segmentation, feature extraction and classification. Initially, the source images are decomposed into low-level sub-band and high level sub-band by Discrete Wavelet Transform (DWT). The fused low level sub-band and high level sub-band are reconstructed to form the final fused image using Inverse Discrete Wavelet Transform (IDWT). Parameter analysis is done on the fused image. The fused image is then segmented using Otsu’s thresholding operation and the texture features are extracted forms the Grey Level Co-occurrence Matrix (GLCM) technique. Finally, the extracted feature is provided to Adaptive Neural Network (ANN) classifier to identify and predict the nature of the tumor. Further this proposed method gives an accuracy of 93.5% for 12 samples of MRI and CT images each.