Back Relació pic de senyal a soroll Catalan PSNR Czech PSNR Spanish Peak Signal to Noise Ratio French PSNR HE Nisbah puncak sinyal terhadap derau ID Peak signal-to-noise ratio Italian ピーク信号対雑音比 Japanese 최대 신호 대 잡음비 Korean Szczytowy stosunek sygnału do szumu Polish
Peak signal-to-noise ratio (PSNR) is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation. Because many signals have a very wide dynamic range, PSNR is usually expressed as a logarithmic quantity using the decibel scale.
PSNR is commonly used to quantify reconstruction quality for images and video subject to lossy compression.