Exercise 1: Adjust image brightness, contrast, and fade

In this exercise, you adjust the image display. Your modifications affect the display of the raster image in your map, but they do not modify the image file.

NoteThis exercise uses the CITY.dwg map you used in Lesson 4: Add Raster Images.

To adjust brightness, contrast, and fade

  1. If the CITY.dwg map is not still open, reopen it.
  2. Scroll to the right side of the raster image.
  3. Hold down the Shift key and click the edge of the image to select it.

    Shift-click the edge of the image to select it.

  4. Right-click the image and click Image Adjust.
  5. In the Image Adjust dialog box, do the following:
    • Change the Brightness value to 99.
    • Change the Contrast value to 10.
    • Change the Fade value to 10.
    • Click OK.

      The image is much lighter, displaying the polylines of the original map more clearly.

  6. Click Save.

To continue this tutorial, go to Exercise 2: Clip the image.