From the course: Photoshop CC 2017 One-on-One: Fundamentals

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Digital imaging fundamentals

Digital imaging fundamentals - Photoshop Tutorial

From the course: Photoshop CC 2017 One-on-One: Fundamentals

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Digital imaging fundamentals

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- To understand digital imagery, you have to understand its most basic building block the pixel. Short for picture element, a pixel is a single dot of color. In still photographs and on device and computer screens, 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 merge to represent details that look 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 digital photo or scan and the purpose of the final image. In this chapter, we'll explore two image attributes that depend on pixels, image size and…

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