Step 3: Pre-Process the Images as Needed

Before combining the images, we may need to pre-process them for visual sharpness or to bring out vital information in a more prominent way. Pre-processing can, for example, transform an input image with a "washed out" appearance to one with high contrast.

In our case, no pre-preprocessing is needed since the images have a high enough brightness contrast. But when we build the dust RGB later, you'll see how this step can be more complex.