title: Computer Based Melanocytic and Nevus Image Enhancement and Segmentation.
abstract: Digital dermoscopy aids dermatologists in monitoring potentially cancerous skin lesions. Melanoma is the 5th common form of skin cancer that is rare but the most dangerous. Melanoma is curable if it is detected at an early stage. Automated segmentation of cancerous lesion from normal skin is the most critical yet tricky part in computerized lesion detection and classification. The effectiveness and accuracy of lesion classification are critically dependent on the quality of lesion segmentation. In this paper, we have proposed a novel approach that can automatically preprocess the image and then segment the lesion. The system filters unwanted artifacts including hairs, gel, bubbles, and specular reflection. A novel approach is presented using the concept of wavelets for detection and inpainting the hairs present in the cancer images. The contrast of lesion with the skin is enhanced using adaptive sigmoidal function that takes care of the localized intensity distribution within a given lesion's images. We then present a segmentation approach to precisely segment the lesion from the background. The proposed approach is tested on the European database of dermoscopic images. Results are compared with the competitors to demonstrate the superiority of the suggested approach.
authors: Department of Computer Engineering, Bahria University, Islamabad, Pakistan; Government College University, Faisalabad, Pakistan.
authors: Uzma
authors: U
authors: Jamil
authors: National University of Sciences & Technology, Islamabad, Pakistan.
authors: M Usman
authors: 0000-0002-6208-7231
authors: MU
authors: Akram
authors: Department of Computer Engineering, Bahria University, Islamabad, Pakistan.
authors: Shehzad
authors: S
authors: Khalid
authors: National University of Sciences & Technology, Islamabad, Pakistan.
authors: Sarmad
authors: S
authors: Abbas
authors: Department of Computer Engineering, Bahria University, Islamabad, Pakistan.
authors: Kashif
authors: K
authors: Saleem
mesh_terms: D003287:Contrast Media / Q000737:chemistry; D003880:Dermatology / Q000379:methods*; D006197:Hair / Q000473:pathology / Q000648:ultrastructure; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008545:Melanoma / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000648:ultrastructure; D009508:Nevus, Pigmented / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000648:ultrastructure
chemical_list: D003287:Contrast Media