.. _`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




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

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


Definition
::::::::::


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

    **source_im**
        | Type: image
        | Description: Source image to extract data from
    **source_table**
        | Type: table
        | Description: Table with parameters for data extraction

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

    **result**
        | Type: table
        | Description: Table with results



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

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







Examples
========





The node can be found in:

* :download:`Object_recognition_by_features.syx </Examples/Sympathy for Data/ImageProcessing/Object_recognition_by_features.syx>`

* :download:`Count_coins.syx </Examples/Sympathy for Data/ImageProcessing/Count_coins.syx>`




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

.. automodule:: node_extractdata
    :noindex:

.. class:: ExtractData
    :noindex: