What are bitmap/raster images made up of?

• A. Vector shapes.
• B. Color channels.
• C. Individual pixels.
• D. Mathematical equations.

Answer: (C)

Bitmap and raster images are built from individual picture elements called pixels, arranged in a grid. Each pixel holds color information, so the image’s appearance comes from the colors of all those tiny squares. The more pixels across and down, the more detail the image can show. That grid-based structure is why raster images can look blocky when enlarged. Color channels (like red, green, blue, and sometimes transparency) are the parts that describe each pixel’s color, but the fundamental unit is the pixel itself. Vector graphics, by contrast, are described by shapes and equations, not a fixed grid of colored squares.