A raster is like a picture made out of tiny squares, kind of like a grid.
Imagine you're looking at a small square tile on the floor. Now imagine that whole floor is covered in tiles, and each one can be a different color. If you look from far away, it looks like a smooth picture. But if you get close, you can see all the little squares, these are called pixels.
Like a Colorful Grid
A raster works exactly like that tile floor. It’s made up of many tiny colored squares (the pixels) arranged in rows and columns. When you look at it on a screen or print it out, those tiny squares come together to make images, like a photo of your favorite animal or a drawing.
If you zoom in really close, just like looking down at the tiles on the floor, you can see each little square clearly. That’s how computers store and show pictures, one pixel at a time! A raster is like a picture made out of tiny squares, kind of like a grid.
Imagine you're looking at a small square tile on the floor. Now imagine that whole floor is covered in tiles, and each one can be a different color. If you look from far away, it looks like a smooth picture. But if you get close, you can see all the little squares, these are called pixels.
Examples
- A raster is like a puzzle made of tiny squares called pixels, the more squares, the clearer the picture.
- Imagine a digital photo as a grid of colored dots; that’s a raster image.
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See also
- What are pixel arrays?
- What are grid-based maps?
- How Does Image Size and Resolution Explained Work?
- What are pixels?
- How Does Digital Images - Computerphile Work?