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sinterface IIntegralImage extends MakesBufferedImage { public int getWidth(); public int getHeight(); // get value for 1 channel // range [0; pixelCount*256) public double getIntegralValue(int x, int y, int channel); // gets value of the 3 channels // range [0; pixelCount*256*3) public double getIntegralValue(int x, int y); }