Which statement best describes a raster image?

Prepare for the iMedia Knowledge Organiser Exam. Study with comprehensive quizzes and in-depth questions, complete with explanations. Equip yourself for success!

Multiple Choice

Which statement best describes a raster image?

Explanation:
Raster images are composed of a grid of pixels, with each pixel holding color information that together forms the picture. When you zoom in, you can see the individual colored squares, a phenomenon called pixelation that shows how rasters store image data. This stands in contrast to vector graphics, which are defined by mathematical curves and shapes that scale without losing quality. The statement about being defined by mathematical curves describes vector graphics, not raster images. The option about audio isn’t related to images, so it doesn’t fit.

Raster images are composed of a grid of pixels, with each pixel holding color information that together forms the picture. When you zoom in, you can see the individual colored squares, a phenomenon called pixelation that shows how rasters store image data. This stands in contrast to vector graphics, which are defined by mathematical curves and shapes that scale without losing quality. The statement about being defined by mathematical curves describes vector graphics, not raster images. The option about audio isn’t related to images, so it doesn’t fit.

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