4k Testbilder [top] -

⚠️ Ensure the image is . Many “4K wallpapers” are upscaled.

You need in PQ (ST.2084) or HLG, not standard SDR images. Check with: 4k testbilder

Look for "nits" levels; high-performing HDR TVs should hit at least 600–1,000 nits. Evaluates color accuracy and gradients. ⚠️ Ensure the image is

Solid backgrounds of Red, Green, Blue, White, and Black to spot any "stuck" or "dead" dots. Tests the High Dynamic Range performance. 4k testbilder

Selection Filter on 4K monitor - Rhino for Windows - McNeel Forum