.. _`Transform image`:

.. _`syip.transform`:

Transform image
```````````````

.. image:: image_transform.svg
   :width: 48


Transforms and image into another shape




Documentation
:::::::::::::

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)


        More info: http://scikit-image.org/docs/0.13.x/api/skimage.transform.html#skimage.transform.rescale

    **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


        More info: http://scikit-image.org/docs/0.13.x/api/skimage.transform.html#skimage.transform.resize

    **rotate**
        Rotates an image


        :angle: Angular degrees to rotate counterclockwise

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


        More info: http://scikit-image.org/docs/0.13.x/api/skimage.transform.html#skimage.transform.rotate


Definition
::::::::::


Input ports
===========

    **source**  image
        source image to filter


Output ports
============

    **result**  image
        result after filtering




Configuration
=============

    **add alpha** (add alpha)
        (no description)
    **Algorithm** (algorithm)
        (no description)
    **angle** (angle)
        (no description)
    **aspect** (aspect)
        (no description)
    **height** (height)
        (no description)
    **interpolation degree** (interpolation degree)
        (no description)
    **k** (k)
        (no description)
    **padding** (padding)
        (no description)
    **resize** (resize)
        (no description)
    **scale x** (scale x)
        (no description)
    **scale y** (scale y)
        (no description)
    **width** (width)
        (no description)
    **x** (x)
        (no description)
    **y** (y)
        (no description)









Implementation
==============

.. automodule:: node_transform
    :noindex:

.. class:: TransformFilter
    :noindex: