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Malignant melanoma is nowadays one of the leading cancers among many white-skinned populations around the world. Change of recreational behavior together with the increase in ultraviolet radiation cause a dramatic increase in the number of melanomas diagnosed. The raise in incidence was first noticed in the United States in 1930, where one person out of 100 000 per year suffered from skin cancer. This rate increased in the middle of the eighties to six per 100 000 and to 13 per 100 000 in 1991. The numbers are also comparable to the incidence rates observed in Europe. In 1995, in Austria the incidence of melanoma was about 12 per 100 000, which reflected an increase of 51.8 % in the previous ten years, and the incidence of melanoma shows a still increasing tendency. But on the other hand investigations have shown that the curability of skin cancer is nearly 100%, if it is recognized early enough and treated surgically. Whereas the mortality rate caused by melanomas in the early sixties was about 70 %, nowa survival rate of 70% is achieved, which is mainly the result of early recognition. Because of the higher incidence of malignant melanoma, researchers are concerned more and more with the automated diagnosis of skin lesions. Many publications report on isolated efforts into the direction of automated melanoma recognition by image processing. Complete integrated dermatological image analysis systems are hardly found in clinical use, or are not tested on a significant number of real-life samples.

We have developed a fast and reliable system that is capable to detect and classify skin lesions with high accuracy. We use color images of skin lesions, image processing techniques and AdaBoost classifier to distinguish melanoma from benign pigmented lesions. As the first step of the data set analysis, a preprocessing sequence is implemented to remove noise and undesired structures from the color image. Second, an automated segmentation approach localizes suspicious lesion regions by region growing after a preliminary step based on adaptive color segmentation. Then, we rely on quantitative image analysis to measure a series of candidate attributes hoped to contain enough information to differentiate melanomas from benign lesions. At last, the selected features are supplied to AdaBoost algorithm to build a strong classifier. Using Leave-one-out cross validation on Zagrouba's image dataset (95 images of benign nevi and 25 images of malignant melanoma) we have obtained an excellent recognition rate of 86.10%.

E. Zagrouba, W. Barhoumi, "Prelimary Approach For The Automated Recognition Of Malignant Melanoma", this paper is available here.

Index Terms: Matlab, source, code, melanoma recognition, detection, skin lesion, malignant melanoma, nevus.

 

 

 

 

 

Figure 1. Melanoma



A simple and effective source code for Melanoma Recognition.

Demo code (protected P-files) available for performance evaluation. Matlab Image Processing Toolbox, Matlab Signal Processing Toolbox and Matlab Wavelet Toolbox are required.

Release
Date
Major features
1.0

2011.02.23



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The authors have no relationship or partnership with The Mathworks. All the code provided is written in Matlab language (M-files and/or M-functions), with no dll or other protected parts of code (P-files or executables). The code was developed with Matlab 2006a. Matlab Image Processing Toolbox, Matlab Signal Processing Toolbox and Matlab Wavelet Toolbox are required. The code provided has to be considered "as is" and it is without any kind of warranty. The authors deny any kind of warranty concerning the code as well as any kind of responsibility for problems and damages which may be caused by the use of the code itself including all parts of the source code.

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