You can download Purifier 1.4 for Mac from our software library for free. The application belongs to Audio & Video Tools. This Mac app is a product of Innobits.
From the developer:
Video signals are contaminated by noise in many different ways even if they are completely digital. Sources of noise are for example storage media, image acquisition equipments (e.g. cameras, digitizers etc.), transmission channels (e.g. broadcasting, satellite links, cable networks, statistical multiplexers) and receiving and recording equipment.
You may want to check out more software for Mac, such as Music Healing - Free, Grandview or iLike, which might be similar to Purifier.