What term describes the tiny picture elements in a raster image?

• A. Pixels
• B. Dots
• C. Points
• D. Voxels

Answer: (A)

Pixels are the tiny picture elements in a raster image. A raster image is built from a grid of these small samples, each holding color information for a single point. When you combine all the colored samples across the grid, you get the full image, and the density of those samples—how many across and down—determines the image’s resolution. Dots are typically associated with printing or halftone patterns rather than the basic units of a digital raster image. Points refer to positions or font sizes in typography and vector work, not the little squares that compose a raster. Voxels are the 3D equivalent of pixels used in volume imaging, not 2D raster elements. So the correct term for the tiny picture elements in a raster image is pixels.