The infrared (IR) channel is available in DPX and Cineon 10-bit files that contain the SGI byte order. This IR channel is collected during the film scanning process at the same time as the visible colour channels (red, green, and blue). Whereas film is mostly transparent to infrared radiation, dust and scratches are not and therefore appear in the IR channel. Once imported into Lustre, the information contained in the IR channel can be used to detect the appearance of dust and scratches to a higher degree than is possible using standard dust detection techniques.

To perform IR dust detection:

1. With the clip loaded on the timeline, click the Analyse forward button while holding down Ctrl.

   The IR dust analysis begins, and boxes are placed around detected problems.

2. To reduce the amount of boxes that appear, increase the value in the Analyse Erode slider.