Editing & Post-processing

It should not happen but sometimes it does anyway: those annoying little white dots in our underwater images, which detract from the overall impression of the photograph. Known as backscatter, these dots appear when small particles in the water reflect the light from a strobe. The more directly the strobe light hits a subject, the higher the risk of backscatter. That is why a strobe should not be pointed straight at a subject.

In this series of articles on postproduction of underwater images, we have worked a lot on white balance settings, basic and advanced exposure corrections, contrast and curves, advanced techniques of removing colour casts, basic and advanced retouching, final colour boost, cropping and sharpening. Finally, our image is ready! And now, we arrive at the question: What do I do with it?

The sharpness of a photograph depends on the camera in use, the lens and the camera settings. Every lens has an optimal range with respect to its sharp­ness performance.

Adobe Photoshop is the number one tool for image editing and provides a large number of editing tools and options—far too many of them actually. But the good news here is that, for editing our underwater images, we only need a few.