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Go to the Tool menu from Grid+ GUI, select Image Georeference and then the Image GeoReference Tool form appears, click Add Images button and browse to the image, which was generated by Google Earth. Click the Clear Points to empty the Control Points frame (Tool Menu
As default, coordinates of the four corner points of the image are updated in the Control Points frame, as shown in Tool Menu. LMC on the row numbering from the table to select a point of the Control Points, then we can find that point by clicking the Find Point button, or remove that point by clicking the Delete Point button. Click the Clear Point button will delete all points in the table. Click Add Point button then LMC on a point in the image to add a new point to the table (a new row is added).
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Figure 2 Make an image file with at least two points from Google Earth.
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Figure 3 Add an image to the Image georeference tool.
Now we go to assigning World X and World Y coordinates to defined points. Click the Clear Points to empty the Control Points frame and then click the Add Point button, then LMC on two defined points in the image in which we have defined their UTM coordinates (in meter) previously, as shown in Tool Menu.
Figure 3 Add an image to the Image georeference tool.
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