Field Detail

• rnd

  public static Random rnd

Constructor Detail

• AdjustInput

  public AdjustInput()

Method Detail

• normImage

  public static final void normImage(Image<FloatType> img)

  Norms an image so that the sum over all pixels is 1.

  Parameters:

  img - - the Image to normalize

• sumImage

  public static final double sumImage(Image<FloatType> img)

  Parameters:

  img - - the input Image

  Returns:

  - the sum of all pixels using RealSum

• normAllImages

  public static double[] normAllImages(ArrayList<LRFFT> data)

• addGaussianNoise

  public static double addGaussianNoise(Image<FloatType> img,
                                        Random rnd,
                                        float sigma,
                                        boolean onlyPositive)

  Adds additive gaussian noise: i = i + gauss(x, sigma)

  Returns:

  the signal-to-noise ratio (measured)

• addGaussianNoiseAddMul

  public static double addGaussianNoiseAddMul(Image<FloatType> img,
                                              Random rnd,
                                              float sigma,
                                              boolean onlyPositive)

  Adds additive and multiplicative gaussian noise: i = i*gauss(x,sigma) + gauss(x, sigma)

  Returns:

  the signal-to-noise ratio (measured)

• translate

  public static void translate(Image<FloatType> img,
                               float[] vector)

• adjustImage

  public static void adjustImage(Image<FloatType> image,
                                 float minValue,
                                 float targetAverage)

  Adjusts an image so that the minimal intensity is minValue and the average is average

  Parameters:

  image - - the image to norm

  minValue - - the minimal value

  targetAverage - - the average that we want to have