Transform image

Some of the docstrings for this module have been extracted from the scikit-image library and are covered by their respective licenses.

class node_transform.TransformFilter

Transforms and image into another shape

Algorithms:

• crop

  Crops the image to the given rectanglular area

  x:

  Left edge of image

  y:

  Top edge of image

  width:

  Width of image

  height:

  Height of image

• padding

  Adds a padding to an image

  x:

  If positive, amount of padding added on the left side. If negative the amount of padding added on the right side.

  y:

  If positive, amount of padding added on the top.If negative the amount of padding added on the bottom.

  k:

  Constant value used in padded areas

  add alpha:

  Adds an alpha with value 1.0 inside image, 0.0 outside

• rescale

  Rescales an image by a given factor

  interpolation degree:

  Degree of polynomial (0 - 5) used for interpolation.

  0 - no interpolation, 1 - bi-linear interpolation, 3 - bi-cubic interpolation

  scale x:

  Scale factor along X direction (horizontal)

  scale y:

  Scale factor along Y direction (vertical)

• resize

  Resizes an image to match the given dimensions

  width:

  The new width of the image

  height:

  The new height of the image

  padding:

  Adds padding to fill out full width/height after aspect-correct scaling

  aspect:

  Preserve aspect ratio (gives smaller size on one axis)

  interpolation degree:

  Degree of polynomial (0 - 5) used for interpolation.

  0 - no interpolation, 1 - bi-linear interpolation, 3 - bi-cubic interpolation

• rotate

  Rotates an image

  angle:

  Angular degrees to rotate clockwise

  resize:

  If true new image dimensions are calculated to exactly fit the image

Inputs:

source : image

source image to filter

Outputs:

result : image

result after filtering