Digital Artifacts – The Colour Gremlins

From time to time, the technology of digital cameras can introduce unwanted artifacts. One type of artifact that you can fix with Photoshop is an excessive amount of colour noise or colour blooming. You’ll most likely see this problem when shooting with a high ISO setting (typically over 400 ISO) or with a low-end digital camera (cell phone cameras). The added colour artifacting doesn’t represent the true colour of an image. I call this phenomenon “The Colour Gremlins”. Left alone to live in your digital file, they can play havoc whenever you try to use Curves or employ any other colour manipulation method.

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