An image pixel is the smallest individual unit of a digital image, like a tiny dot that, together with millions of others, forms the complete picture you see on a screen. The word “pixel” comes from “picture element,” and each pixel holds information about color and brightness. When you look at a photo on your phone or computer, it appears smooth and continuous, but if you zoom in far enough, you’ll start to see that it’s actually made up of countless tiny squares or dots—these are the pixels. Each one can display a specific color, and by arranging them side by side in a grid, they collectively recreate complex images. The total number of pixels in an image determines its resolution; for example, a photo that is 1920 by 1080 pixels has over two million individual pixels, which is why it’s called a “1080p” or “Full HD” image. More pixels generally mean more detail and sharper pictures, because the image can capture finer variations in color and shape. In this way, pixels are like the building blocks of digital images, working together to create the visuals we enjoy every day.
