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Chroma Subsampling (4:4:4 vs 4:2:2 vs 4:2:0) Visualizer & Cleaner

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Diagnose why red text, HUD graphics, and saturated UI icons look blurry over HDMI or in video captures. Visually inspect YCbCr luma/chroma decomposition and simulate YouTube/H.264 color loss.

Subsampling Standard

75% chroma discarded (YouTube/Web standard)

Color Channel Decomposition

Test Pattern

Simulated Video Frame (4:2:0 Subsampling)HDMI / YCbCr Simulation

8× Subpixel Bleed Loupe

⚠️ Notice 2×2 block color bleeding across edges

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Chroma Subsampling (4:4:4 vs 4:2:2 vs 4:2:0) Visualizer & Cleaner