Radiometric enhancement (read online help)
1. In the Image Interpreter menu, select Radiometric Enhancement... In this section, you will use both the Inverse and Reverse options of the Image Inversion function to enhance images.
Inverse emphasizes detail in the dark portions of an image.
Reverse simply reverses the DN vales.
Inverse
2. In the Radimetric Enhance menu, select Brightness Inversion...
3. In the Brightness Inversion dialog under Input File: (*.img), enter loplakebedsig357.img.
4. Under Output File (*.img), enter inverse.img in the directory of your choice.
5. Under Output Options:, turn on the Stretch to Unsigned 8 bit check box by clicking on it.
6. Under Output Options:, click on Inverse.
7. Click OK in the Brightness Inversion dialog to start the process. A Job Status dialog displays, indicating the progress of the function.
Reverse
8. Select Brightness Inversion... from the Radiometric Enhance menu.
9. In the Brightness Inversion dialog, enter loplakebedsig357.img as the input file.
10. Enter reverse.img in the directory of your choice as the output file.
11. Turn on the Stretch to Unsigned 8 bit check box under Output Options:
12. Click OK in the Brightness Inversion dialog to start the process. A Job Status dialog displays, indicating the progress of the function.
13. Open a Viewer and display inverse.img.
14. Right-hold within the Viewer and select Fit Window to Image from the Quick View menu. The Viewer changes size to bound the image data.
15. Select View | Split... | Split Vertical from the Viewer menu bar. A second Viewer opens.
16. In Viewer #2, click on the Open icon (this is the same as selecting File | Open | Raster Layer... from the Viewer menu bar).
17. Open reverse.img.
18. In Viewer #2, select View | Split... | Split Vertical to open a third Viewer.
19. With your cursor in Viewer #3, press Ctrl-r.
20. Open loplakebedsig357.img.
21. Resize the Viewers so you can compare the images. Answer Questions 4-6.
Radiometric enhancement (read online help) 1. In the Image Interpreter menu, select Radiometric Enhancement... In this section, you will use both the Inverse and Reverse options of the Image Inversion function to enhance images.Inverse emphasizes detail in the dark portions of an image.Reverse simply reverses the DN vales.Inverse 2. In the Radimetric Enhance menu, select Brightness Inversion...3. In the Brightness Inversion dialog under Input File: (*.img), enter loplakebedsig357.img.4. Under Output File (*.img), enter inverse.img in the directory of your choice.5. Under Output Options:, turn on the Stretch to Unsigned 8 bit check box by clicking on it.6. Under Output Options:, click on Inverse.7. Click OK in the Brightness Inversion dialog to start the process. A Job Status dialog displays, indicating the progress of the function.Reverse 8. Select Brightness Inversion... from the Radiometric Enhance menu.9. In the Brightness Inversion dialog, enter loplakebedsig357.img as the input file.10. Enter reverse.img in the directory of your choice as the output file.11. Turn on the Stretch to Unsigned 8 bit check box under Output Options:12. Click OK in the Brightness Inversion dialog to start the process. A Job Status dialog displays, indicating the progress of the function.13. Open a Viewer and display inverse.img.14. Right-hold within the Viewer and select Fit Window to Image from the Quick View menu. The Viewer changes size to bound the image data.
15. Select View | Split... | Split Vertical from the Viewer menu bar. A second Viewer opens.
16. In Viewer #2, click on the Open icon (this is the same as selecting File | Open | Raster Layer... from the Viewer menu bar).
17. Open reverse.img.
18. In Viewer #2, select View | Split... | Split Vertical to open a third Viewer.
19. With your cursor in Viewer #3, press Ctrl-r.
20. Open loplakebedsig357.img.
21. Resize the Viewers so you can compare the images. Answer Questions 4-6.
การแปล กรุณารอสักครู่..
