Inversion of wavelet coefficients in oil spills detection in radar images for environment risk reduction in Adriatic Sea

Problem of oil spills detection is involvement of dark colors. Dark colors are close to 0 and cannnot be detected in by image differencing. The paper presents an idea to overcome detection problem for oil spills. By using DWT, the idea is to remove parts of the signal, which represents main structures such as costal lines and increase noise. Wavelet analysis in real time, for oil spills, has been applied on inverted image. Then so called frame differencing technique is applied. The benefits of using proposed method is reduction of risk for environment pollution, prevention of environment danger, tracking of pollution spread, and help in crisis management. The proposed method can be combined with VTS for narrow seas such as Adriatic Sea.