The number of effective, indispensable and essential tools for finding demons in the dark has increased by many today, and shadow-lurking demons are all the more nervous. Contrast stretching The first one is an image-enhancement procedure called contrast stretching, and it improves the contrast in an image by increasing the range of intensity values it contains to span a desired range of values, specifically, the full range of pixel values defined by the type of image. Without it, things lurking in the shadows stay hidden; with it, an image acquires depth by revealing a new layer of detail within those shadows. Typically, this is a non-problem for most picture-takers; but, for those looking for things in shadows and in the dark, every pixel counts. The two transformation operators used to alter intensity values are: Logarithmic. The dynamic range of an image can be compressed by replacing each pixel value with its logarithm, specifically, by enhancing the low-intensity pixel...
My inevitable demise, daily.