Getting boundary of raster image as polygon in ArcGIS Desktop?

I have a rectangular raster image in ArcGIS Desktop.

How can I produce a polygon which is just the extent of the raster image?

That is, I want to have a polygon layer with a single quadrilateral which is the edge of the image.

I've tried simply doing a Raster->Polygon conversion, but this tries to use the data in the image to generate the outline - all I want is the outline of the edge of the image.

I'm using ArcGIS Desktop 10.

Answer

If you have Spatial Analyst then you can:

1. Multiply the raster by 0 to create a constant value raster using Raster Calculator. (be sure to convert it to integer type or step 2 will not work)


2. Convert the result of step 1 to polygon using the Raster to Polygon tool.

Another solution:

If your have 3D Analyst license then you can use the Raster Domain tool under 3D Analyst>Conversion>from raster (however it does not have the smooth function)