LO: TO UNDERSTAND WHAT MAKES UP A DIGITAL IMAGE

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What is a pixel?

The term “pixel” is actually short for “Picture Element.” These small little dots are what make up the images on computer displays. The screen is divided up into a matrix of thousands or even millions of pixels. Each pixel can only be one color at a time. However, since they are so small, pixels often blend together to form various shades and blends of colors.

But how is this data stored?

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Each pixel in a digital image is stored as a binary number. In its simplest form this is a single binary digit or bit (0 or 1). With more complex images this can be as much as three bytes per pixel (01101111, 10110000, 11100111) to represent the quantity of Red, Green and Blue.

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Lesson Task

Pixel Art KS3