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interimage:examples:example3 [2011/08/12 18:32] – rsilvainterimage:examples:example3 [2014/10/08 22:04] (atual) – [Step by step] rsilva
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   * tijuca.tif   * tijuca.tif
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   * Check the //Default Image// checkbox and click the //Add// button. Click OK.   * Check the //Default Image// checkbox and click the //Add// button. Click OK.
   * Create a semantic net like this one:   * Create a semantic net like this one:
 +(Class names shouldn't contain blank spaces or special characters)
 {{interimage:examples:example3_22.png|Semantic net}} {{interimage:examples:example3_22.png|Semantic net}}
   * Select the //Image// tab and click the Add button. Set its //Keyname// to //composed// and click the //Composition// button.   * Select the //Image// tab and click the Add button. Set its //Keyname// to //composed// and click the //Composition// button.
 {{interimage:examples:example3_3.png|Image layer}} -> {{interimage:examples:example3_4.png|}} {{interimage:examples:example3_3.png|Image layer}} -> {{interimage:examples:example3_4.png|}}
-  * In the dialog that comes up set the color composition according to the image below:+  * In the dialog that appears set the color composition according to the image below:
 {{interimage:examples:example3_5.png|Color Composition dialog}} {{interimage:examples:example3_5.png|Color Composition dialog}}
   * Close the dialog. Click //Save//. Another image layer is added and you should see something like this:   * Close the dialog. Click //Save//. Another image layer is added and you should see something like this:
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   * Save the project. Select the //Scene// node and click the //Samples Editor// button.   * Save the project. Select the //Scene// node and click the //Samples Editor// button.
 {{interimage:examples:example3_7.png|Open Samples Editor}} {{interimage:examples:example3_7.png|Open Samples Editor}}
-  * Maximize the window that comes up. Select the //TA_Baatz_Segmenter// operator. Set its parameters according to the following:+  * Maximize the window that appears. Select the //TA_Baatz_Segmenter// operator. Set its parameters according to the following:
 {{interimage:examples:example3_8.png|Selecting the operator}} -> {{interimage:examples:example3_9.png|Setting the operator parameters}} {{interimage:examples:example3_8.png|Selecting the operator}} -> {{interimage:examples:example3_9.png|Setting the operator parameters}}
   * Click the //Segment// button. Once the segmentation is finished, make sure the //Buildings// class is selected and click the //Collect Samples// button.   * Click the //Segment// button. Once the segmentation is finished, make sure the //Buildings// class is selected and click the //Collect Samples// button.
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   * Now, click on some objects that belong to the //Buildings// class (To deselect an object just click it again).   * Now, click on some objects that belong to the //Buildings// class (To deselect an object just click it again).
 {{interimage:examples:example3_11.png|Collecting samples}} {{interimage:examples:example3_11.png|Collecting samples}}
-  * When you are done, repeat the process to the other two classes. Set the //Background Image// to the other composition created previously can be helpful here. +  * When you are done, repeat the process to the other two classes. Setting the //Background Image// to the other composition created previously can be helpful here. 
-  * After, click the //Collect Samples// again. +  * After, click the //Collect Samples// again, deselecting it. 
-  * +  * Click the //Export// button. In the window that appears click the //Class// button. Select //All// and click OK. 
 +{{interimage:examples:example3_12.png|Export Shapefile}} -> {{interimage:examples:example3_13.png|Insert Class}} 
 +  * Click the //Expression// button. Set the fields according to the image below: 
 +{{interimage:examples:example3_14.png|Insert Expression}} 
 +  * After, create another three expressions. Your decision rule should look like this: 
 +{{interimage:examples:example3_15.png|Decision Rule}} 
 +  * Click OK. Set the file name to samples.shp and Click //Save//. 
 +  * Save the project. Once the project is saved click on //File// → //Edit Project//. Fill the fields according to the following: 
 +{{interimage:examples:example3_16.png|Edit Project dialog}} 
 +  * Click the //Add// button and then click OK. 
 +  * Associate the //TA_C45_Classifier// top-down operator to the //Buildings// node. Set the operator parameters according to the image below. Make sure the //TopDown Multi-class// checkbox is checked. 
 +{{interimage:examples:example3_17.png|Selecting the operator}} -> {{interimage:examples:example3_182.png|Setting its parameters}} 
 +  * Save the project and execute the interpretation. 
 +  * You can improve your classification collecting more samples for the classes that presented more confusion and repeating the process.
interimage/examples/example3.1313173943.txt.gz · Última modificação: 2011/08/12 18:32 por rsilva