|  |  | # Basic Tutorial Photomatix Pro |

## Step 3: Generate the HDR image The next window lets you specify options for creating the HDR image. We will use the default settings. Even though the 3 photos of the Grand Canal were taken using a tripod, we will leave the option "Align source images" checked. This option corrects for small alignment problems that may happen even with a tripod Click the OK button. Photomatix will now merge your differently exposed photographs into a single HDR image that represents the complete tonal range captured by the photos. Note: While the pixel values of your source images are discrete values in a finite range such as 0-255 or 0-65535, the pixel values of the HDR image are in floating point representation in order to properly represent the complete range from deep shadows to bright highlights.