Welcome back to our fourth post in the series Digital Imaging Artifacts. Last time we talked about a digital imaging artifact called Blooming and Clipping. Today we’re gonna be talking about Defective Pixels.
All pixels have some degree of dark current leakage which is visible as Digital Imaging Artifacts: Spatially Fixed Pattern (FPN) as discussed in an earlier post of this series, Image Noise. Some pixels, however, tend to cause more dark current leakage than others. These are called Hot Pixels.