This is a tip that can be categorized with all the posts on this blog pertaining to Chroma , as well as any other post related to processing digital media intended to decloak the cloaked. Obviously, it's intended for software programmers; but, is also useful to anyone who is not, in that it shows such persons what they need to aim for given what they're facing. This post also attempts to correct mistakes in other posts, which purport to calculate and employ variance and standard deviation—and which may do so correctly on a local basis—but which do not do so on a global basis. The results of the mistakes were not uninteresting to be sure; but, they misrepresent the meaning and purpose of the measurements, and generally make me look like I've got demons flying in and out of my butt all day, and, accordingly, am not putting as much concentration into my work as is required. Most image-processing work of import and consequence, e.g., exposure fusion, etc., requires the c...
My inevitable demise, daily.