From the course: Photoshop One-on-One: Fundamentals

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How digital images work

How digital images work - Photoshop Tutorial

From the course: Photoshop One-on-One: Fundamentals

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How digital images work

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- To understand digital imagery, you have to understand its most basic building block, the pixel, which for all intents and purposes is a single dot of color. In still photographs and on mobile devices, computer displays, 8K televisions, the pixel is a perfect square. Each pixel aligns to the pixel next to it in regular rows and columns with no gaps in between. As the pixels grow smaller and more numerous, they dissolve into what's known as a continuous-tone image, in which groups of similarly-colored pixels merged to represent details that looked anything but square. Which is why it's generally understood that the more pixels you have, the better the final image will be. But quantity isn't everything. A badly-rendered image may contain 100 million pixels, and a well-rendered one, may contain just a few hundred thousand. It all depends on the quality of the original photograph or scan, as well as the purpose of the…

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