highresolution

High resolution refers to the amount of detail available in an image, video frame, or display. It is typically defined by the total number of pixels in the image (width by height) and, for screens and prints, by the pixel density or sampling rate (pixels per inch or per centimeter). In digital imaging, resolution is often expressed as a specific dimension such as 1920×1080 or 6000×4000. In displays, resolution combines with screen size and pixel pitch to determine perceived sharpness.

Perceived sharpness also depends on viewing distance and the sampling process used to reproduce detail. Metrics such as pixels per inch (ppi) apply to screens and prints, while angular resolution describes the smallest detail the eye can distinguish. Different domains use different benchmarks; video standards include 720p, 1080p, 4K Ultra HD (3840×2160), and 8K (7680×4320). In printing, a common target for high-quality output is around 300 dpi, though requirements vary with material and viewing distance.

Higher resolution brings benefits in clarity and detail, but it also increases file sizes, bandwidth needs, and processing requirements. Upsampling or upscaling can increase the pixel count of existing content but does not add true detail beyond the source. Conversely, downsampling reduces resolution and data. The designation of something as high resolution is relative to context, including the device, content type, and expected viewing conditions.

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