.. _`Extract Image Data`:

.. _`syip.extractdata`:

Extract Image Data
~~~~~~~~~~~~~~~~~~

.. image:: image_and_table_to_table.svg
   :width: 48


Extracts table data from an image based on tabular input data

:Algorithms:


  - *integrate*

    Computes the integral on all points in a square between twocorner points,

    must have an integral image as input.Operates on each channel separately

    **start x:**
      Column containing starting points on X axis for integral

    **start y:**
      Column containing starting points on Y axis for integral

    **end x:**
      Column containing ending points on X axis for integral

    **end y:**
      Column containing ending points on X axis for integral


  - *pixel values*

    Extracts the pixel values at positions given by X and Ytable rows

    **x:**
      Column containing X coordinates of the points to extract

    **y:**
      Column containing Y coordinates of the points to extract



:Inputs:
    **source_im** : image

        Source image to extract data from

    **source_table** : table

        Table with parameters for data extraction

:Outputs:
    **result** : table

        Table with results

*Ports*:

    **Inputs**:

        :source_im: image

            Source image to extract data from
        :source_table: table

            Table with parameters for data extraction

    **Outputs**:

        :result: table

            Table with results

*Configuration*:

    **algorithm**
        (no description)
    **x**
        (no description)
    **y**
        (no description)
    **start x**
        (no description)
    **start y**
        (no description)
    **end x**
        (no description)
    **end y**
        (no description)

.. automodule:: node_extractdata

.. class:: ExtractData