ActiveX and VBA
Developer's Guide > Advanced Drawing and
Organizational Techniques > Work with Raster
Images > Modify Images and
Image Boundaries >
Adjust Image Brightness, Contrast, and Fade
You can adjust image brightness, contrast, and fade in AutoCAD to the display of the image and to plotted output without affecting the original raster image file.
Use the following properties to adjust brightness, contrast, and fade:
Specifies the brightness level of an image
Specifies the contrast level of an image
Specifies the fade level of an image