.. _`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



*Input ports*:
    **source_im** : image

        Source image to extract data from

    **source_table** : table

        Table with parameters for data extraction

*Output ports*:
    **result** : table

        Table with results



*Configuration*:
    **Algorithm** (algorithm)
        (no description)
    **x** (x)
        (no description)
    **y** (y)
        (no description)
    **start x** (start x)
        (no description)
    **start y** (start y)
        (no description)
    **end x** (end x)
        (no description)
    **end y** (end y)
        (no description)

.. automodule:: node_extractdata

.. class:: ExtractData