The malignant melanoma is the most deadly form of skin cancer. Early diagnosis is an important that increases chances of successful cureas there is rapid course of the disease. It is costly for dermatologist to screen every patient for melanoma. There is a need of system to assess the lesion area based on dermatological photographs. Image processing andComputer analysis are the efficient tools which helps medical diagnosis. So to get the effective results and information of various stages of the infected portion, there is need of features of that particular area .So the feature extraction phase is hugely dependent on the region detected which has the disease. So suitablesegmentation algorithm is required which can affectivity detect the skin melanoma pixels in the information image. In this work, we proposed an algorithm which can detect the pixels which have melanoma region and ordinary skin. In proposedwork Gaussian mixtures posterior algorithm is presented. Which chooses some candidates from different regions of the images which have different intensity values and further Gaussian models have been built from the chosen places. In the end Artificalneural network has been implemented to get final segmentation results. Experimental results show that the algorithm gives 97% accuracy results on the tested database images.Keywords-Melanoma, Segmentation, GMM, ANN.
I. INTRODUCTIONComputer-aided diagnosis (CAD) systems have been quickly being developed over the previous decade for skin cancer classification. In fact, an impressive role of CAD systems is to give a "second opinion" to the dermatologists in their decision making for successful diagnosis of patients. In dermatology, the significant types of lesions for skin cancer are divided into malignant melanoma and non-melanoma. Melanoma is a most frequent type of the melanocytes it is a type of cell that is found in the skin"s epidermis and its incidence has been increasing over last few decade. Melanoma mostly occurs on the trunk or lower extremities and is the most malignant form of skin cancer [1] .A cancerous lesion in the pigment bearing basal layer of theskin is the most treatable and with the cure rate of 100% in the early stage. Theproblem consists in identifying the small percentage of skin lesion that develops melanoma [2]. The advanced cutaneous melanoma is still downhearted, but when examined at early stages it can be cured without complications. The separation of early melanoma from other non-malignant pigmented skin lesions is important even for experienced dermatologists. In several cases primary care physicians miscalculate melanoma in its early stage [3].The main idea of image segmentation is to group pixels in homogeneous regions and the approach used is "common feature". The features can be represented by the space of color, texture and gray level [4]. In this paper, the problems of skin image segmentation using a hybrid path for the separation of pigmented skin lesions from normal skin and the feature extraction from the separated regi...