Ask AI: Images are considered as examples of raster data when ?

Images are considered as examples of raster data when they are represented as a grid of pixels, where each pixel has an associated value that represents some property. This could be color, intensity, elevation, or any other metric that can be broken down into a grid format. Here are a few scenarios where images are treated as raster data: 1. **Digital Photos**: Typical images you take with a camera or phone are raster data because they consist of a grid of pixels, each with a specific color and brightness value. 2. **Scanned Documents**: When documents are scanned, they are converted into images comprising pixels, thus making them raster data. 3. **Satellite Imagery**: Earth observation data from satellites, which include various wavelengths of light and other measurements, are captured in raster format. 4. **Digital Painting and Graphics**: Software like Photoshop creates and manipulates images in a pixel-based format. 5. **Heat Maps and Elevation Models**: These are often represented as grids where each cell in the grid has a value representing temperature, elevation, etc. The defining characteristic is the grid or matrix-like structure of pixels where each pixel has a distinct value. This raster data format contrasts with vector data, which uses points, lines, and polygons to represent data.