video-comparer

To compare video compression quality, you can calculate PSNR and SSIM metrics and generate a frame-by-frame visual comparison. This process outputs an interactive HTML report highlighting visual fidelity differences between the original and encoded files.

PSNR and SSIM calculation works by analyzing corresponding frames between two video files to quantify visual degradation. These metrics extract objective measurements of compression impact, which are then compiled into a detailed interactive HTML report.

Yes, you need FFmpeg and FFprobe installed to generate a video comparison HTML report. These dependencies are required for extracting video metadata, decoding frames, and performing the underlying video processing and analysis.

The best way to visually inspect frame-by-frame video degradation is by generating an interactive HTML report. This report provides multiple viewing modes including slider, side-by-side, and grid views to clearly identify compression artifacts.

Yes, you can extract video metadata like codec, resolution, bitrate, and duration before calculating visual differences. The analysis combines this extracted metadata with PSNR and SSIM metrics to provide a comprehensive overview of encoding impacts.

Your compressed video shows visual degradation because the encoding process discards data to reduce file size. Analyzing the degree of degradation requires calculating PSNR and SSIM metrics to objectively quantify the loss of visual fidelity.