In this tutorial, you will learn how to merge to HDR three photographs of the same scene taken under different exposures, and how to adjust the HDR image to your liking.
HDR image creation starts with taking photos of a High Dynamic Range scene as detailed in Step 1
Note: This tutorial covers HDR rendering from multiple exposures, but you can still use Photomatix with a single image: open the image in Photomatix and go directly to Step 4.