Making an Image Transparent
Concept Procedure Quick Reference
 
 
 

You can make all pixels of a specific color in a grayscale or color image transparent. (The transparency color of a bitonal image is always the background color of the image.) This is useful for overlaying two images or placing an image in front of objects.

NoteThis option does not affect images you added with Data Connect. If the image you are inserting is supported , connect to it and add it to your map using Data Connect. This gives you more control over styling and other options.

This option is not available if the image is currently unloaded or if the Raster Extension is not loaded. To load the Raster Extension, use an image command, such as Insert An Image.

Note The transparency color is stored in the drawing as an AutoCAD Map 3D custom object. If you send the drawing to other users, they can see the transparency color only by opening the drawing in AutoCAD Map 3D or Autodesk Raster Design. If they open the drawing in AutoCAD, they see a message that AutoCAD cannot reference the custom object and will not display the transparent color.

You can also change the opacity of an entire raster image, so that the image is translucent and items below it are visible.

See Also