SAR image oil spill detection method based on image significance analysis
A detection method and image technology, applied in the field of remote sensing images and image processing, to achieve high recall and accuracy, and high detection efficiency
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Embodiment 1
[0075] Embodiment 1 A kind of SAR image oil spill area detection method, SAR image such as figure 1 shown, including:
[0076] Step 1) Get the saliency image:
[0077] 1.1) Convert the original image from RGB space to Lab space;
[0078] First, convert the RGB color space of the original image I into XYZ space with the help of formula (1), and then use formula (2) to convert the XYZ space into Lab space, and obtain the Lab space image I corresponding to the original image Lab ;
[0079]
[0080]
[0081] in,
[0082] 1.2) Gaussian filtering is performed on the Lab space image;
[0083] Image I for Lab space Lab The three components of I L , I a and I b All are filtered with a 3×3 Gaussian convolution kernel to obtain the filtered image I GLab ;
[0084] Among them, the 3×3 Gaussian convolution kernel is
[0085] 1.3) Take the mean value LM, AM and BM of the converted image L, a, and the images of the three channels of b respectively; and calculate the Eucl...
Embodiment 2
[0116] Embodiment 2 A kind of SAR image oil spill area detection method, SAR image such as Figure 4 shown, including:
[0117] Step 1) Get the saliency image:
[0118] 1.1) Convert the original image from RGB space to Lab space;
[0119] First, convert the RGB color space of the original image I into XYZ space with the help of formula (1), and then use formula (2) to convert the XYZ space into Lab space, and obtain the Lab space image I corresponding to the original image Lab ;
[0120]
[0121]
[0122] in,
[0123] 1.2) Gaussian filtering is performed on the Lab space image;
[0124] Image I for Lab space Lab The three components of I L , I a and I b All are filtered with a 3×3 Gaussian convolution kernel to obtain the filtered image I GLab ;
[0125] Among them, the 3×3 Gaussian convolution kernel is
[0126] 1.3) Take the mean value LM, AM and BM of the converted image L, a, and the images of the three channels of b respectively; and calculate the Euc...
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