Constructor Detail

• Filter

  public Filter()

Method Detail

• createGaussianKernel

  public static final double[] createGaussianKernel(double sigma,
                                                    boolean normalize)

  Create a 1d-Gaussian kernel of appropriate size.

  Parameters:

  sigma - Standard deviation of the Gaussian kernel

  normalize - Normalize integral of the Gaussian kernel to 1 or not...

  Returns:

  float[] Gaussian kernel of appropriate size

• createGaussianKernel

  public static final float[] createGaussianKernel(float sigma,
                                                   boolean normalize)

  Create a 1d-Gaussian kernel of appropriate size.

  Parameters:

  sigma - Standard deviation of the Gaussian kernel

  normalize - Normalize integral of the Gaussian kernel to 1 or not...

  Returns:

  float[] Gaussian kernel of appropriate size

• createGaussianKernelOffset

  public static final FloatArray2D createGaussianKernelOffset(float sigma,
                                                              float offset_x,
                                                              float offset_y,
                                                              boolean normalize)

  Create a normalized 2d gaussian impulse with appropriate size with its center slightly moved away from the middle.

• createGaussianKernelOffset

  public static final FloatArray2D createGaussianKernelOffset(double sigma,
                                                              double offset_x,
                                                              double offset_y,
                                                              boolean normalize)

  Create a normalized 2d gaussian impulse with appropriate size with its center slightly moved away from the middle.

• createGradients

  public static final FloatArray2D[] createGradients(FloatArray2D array)

• enhance

  public static final void enhance(FloatArray2D src,
                                   float scale)

  In place enhance all values of a FloatArray to fill the given range.

  Parameters:

  src - source

  scale - defines the range

• convolveSeparable

  public static final FloatArray2D convolveSeparable(FloatArray2D input,
                                                     float[] h,
                                                     float[] v)

  Convolve an image with a horizontal and a vertical kernel simple straightforward, not optimized---replace this with a trusted better version soon

  Parameters:

  input - the input image

  h - horizontal kernel

  v - vertical kernel

  Returns:

  convolved image