Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail.
The 1951 USAF resolution test target is a classic test target used to determine spatial resolution of imaging sensors and imaging systems.
32K resolution refers to a display resolution of approximately 32,000 pixels horizontally. A resolution of 30720 × 17280 for an aspect ratio of 16:9 is speculated to be standardized. This doubles the
Image resolution
…15360 × 8640: 16K Digital Cinema 30720 × 17280: 32K Sequences from newer films are scanned at 2,000, 4,000, or even 8,000 columns, called 2K, 4K, and 8K, for quality visual-effects editing on computers…
For comparison: this image has a 32K resolution; spherical panoramics are one possible purpose for 32K