Image Dynamic Range Analyzer
Measure occupied luminance levels, clipping, percentiles, and an approximate stop range from rendered image pixels.
Upload an image to inspect occupied tones and clipping.
Numeric metrics
Turn pixel distributions into values that can be compared consistently.
Visual context
Use the preview or chart to understand what contributes to the result.
Private analysis
All calculations stay in the browser and no image upload is required.
Comment ça marche
- 1
Télécharger une image
Choose the rendered image you want to inspect.
- 2
Review the metrics
Read the calculated values and visual analysis.
- 3
Export the findings
Download the available map, CSV, or text report.
Rendered range versus camera dynamic range
This tool analyzes the tones stored in an exported 8-bit image. P1 and P99 reduce the influence of isolated extremes, while clipping percentages reveal pixels near pure black or white. The stop value is an approximation for displayed pixels and cannot measure the full sensor range available in a RAW capture.
Questions fréquemment posées
Does this measure camera sensor dynamic range?
No. It measures the rendered pixel values in the selected image, not unprocessed sensor data.
Why use P1 and P99?
Percentiles provide a practical occupied range without letting a few isolated extreme pixels dominate.
Mon image est-elle téléchargée ?
Non. Votre image reste dans votre navigateur.
Image Dynamic Range Analyzer last reviewed: Sep 12, 2026.