2Digital Image Characteristics
IN THIS CHAPTER, YOU’LL FAMILIARIZE yourself with the unique characteristics of digital imagery so you can make the most of your images. First, you’ll learn how the digital color palette is quantified and when it has a visual impact, which you’ll need to know in order to understand bit depth. Then you’ll explore how digital camera sensors convert light and color into discrete pixels.
The last two sections of this chapter cover how to interpret image histograms for more predictable exposures, as well as the different types of image noise and ways to minimize it.
UNDERSTANDING BIT DEPTH
Bit depth quantifies the number of unique colors in an image’s color palette in terms of the zeros and ones, or bits, we use to specify ...
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