Divisão de Observação da Terra e Geoinformática

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[[interimage:|InterIMAGE wiki]] 
====== InterIMAGE Examples: Attribute Extraction and Visualization ======

Before you perform classification, its important to view the image in the attribute space. 

This sample project shows how to calculate and view the image object attributes in InterIMAGE. The InterIMAGE interpretation project can be downloaded here: {{:interimage:view_attributes.zip|download}}

The image used in this example is the following:

{{wiki:thales:input_image.png|}}

Firstly, you should create a new project, called, for instance "view_attributes", with the images you are going to use in your project (in this case a single image will be used).

{{wiki:thales:new_project.png?400|}}

After this, create a single structure to perform segmentation and attributes extraction, using your favorite algorithm. In the following example, we created a node called "show_attributes" with Baatz segmentation.

{{wiki:thales:new_node.png?400|}}

To view some attributes, edit the top down rule of the node "show_attributes" by clicking in the button highlighted in blue.

{{wiki:thales:top_down_button.png?400|}}

Then insert your image and create the new attributes by inserting new expressions.

{{wiki:thales:create_attribute.png?400|}}

In this example, the new attribute "object_area" will represent the area of every object in the scene.

Then, start your project by clicking in the button highlighted in blue.

{{wiki:thales:start_button.png?400|}}

When the process finishes, the "Map Viewer" window will open. In this window, you can select "Attribute" in the "Fill" option and chose some of your created attributes to view in the image. Every object resultant from classification will be filled with the relative intensity of the choosen attribute, as the figure below.

{{wiki:thales:show_attributes.png?400|}}