1/21/2024 0 Comments Multispec 4c 1.1Select the training areas for the rest of the sixĬlasses – Image blank, Weeds, Soil, Light soil. Select the Add to list button in the Project window. Thus next,ĭrag across the second training field in the Image Window shown below for Wheat. Note that one can designate the selected area as a training or test area.Ĥ.1.4 Since there is to be only one training field for this class, we are ready to select the training for the second training class. Thus, Type Trees into the Class Name box and then select OK. A dialog box will appear to allow one to name the class and give the field a special designation, as desired. Note in the Project dialog box, that the coordinates (row and column numbers) of the upper left corner and the lower right corner of the selected area appear in box near bottom. One should stay away from the edges by a couple of pixels to reduce the chance of edge affects. MultiSpec Tutorial 4 Supervised ClassificationĬaution: A mistake that is made many times is to select training areas very near edges of a field. If upon inspection, one does not like the exact boundaries resulting, one may immediately repeat the process. To select training fields for each class, one must simply "drag" a rectangular area on the image (or, with polygon option selected, click on the corners of the desired polygon), and then "Add that field to the list." Thus,ĭrag from the upper left corner to the lower right corner of the Tree training field in the image window. (The default settings for this tutorial are satisfactory.) A new window labeled Project will appear to the right of the screen that will be used in a moment. One may have been created during the cluster analysis.Ĥ.1.2 Now one will select training fields.įrom the Processor menu select Statistics and select OK in the Set Project Options dialog box. In the upper left to close the current project and project window. 4.1 Select Training Fields 4.1.1 If a project window is open, from the Window menu, select Project, and then double click Open the image if it is not already displayed in a multispectral image window following the guidelines given in tutorial 1. One can also do a supervised classification by selecting training areas for specified classes from known areas. MultiSpec Tutorial: Supervised Classification - Select Training Fields Requirements: MultiSpec application and image titled “ag020522_DPAC_cd.lan”. To select training fields for each class, one must simply "drag" a rectangular area on the image (or, with polygon option selected, click on the corners of the desired polygon), and then "Add that field to the list." Thus, Drag from the upper left corner to the lower right corner of the Tree training field in the image window. From the Processor menu select Statistics and select OK in the Set Project Options dialog box. 4.1.2 Now one will select training fields. One may have been created during the cluster analysis. 4.1 Select Training Fields 4.1.1 If a project window is open, from the Window menu, select Project, and then double click in the upper left to close the current project and project window. Revised of 7 MultiSpec Tutorial: Supervised Classification - Select Training Fields Requirements: MultiSpec application and image titled “ag020522_DPAC_cd.lan”.
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