Scaled metrics account for completion rate to enable fair comparison across different evaluation modes. Formula: PSNRscaled = (completed_cases / total_cases) × avg(PSNR), SSIMscaled = (completed_cases / total_cases) × avg(SSIM), LPIPSscaled = 1.0 - (completed_cases / total_cases) × (1.0 - avg(LPIPS)). Cases with infinite PSNR (perfect match) are excluded from the PSNR calculation.