HDR Tone Mapping

HDR Tone Mapping

As HDR is increasingly used in photographic, video surveillance, and ADAS devices (among other applications), brands and manufacturers must assess their HDR performance and tune them accordingly. Analyzer’s HDR Module includes a Composite chart with automated and controllable lighting so you can measure essential HDR attributes such as color, texture, and contrast in one shot. It also contains a Natural Scene chart for perceptual analysis to complement Composition chart measurements and an HDR Noise chart for dynamic range and noise analysis.

Tone mapping
Dynamic and tonal range
Signal-to-noise ratio
Dark signal
Tone curve
ISO Sensitivity
Texture preservation
Contrast preservation
Color consistency
Artifact analysis: texture loss, moiré, aliasing, color shift

HDR Tone Mapping – Composite charts

This setup is composed of two Gemini with their Composite charts. The composite chart contains three main patterns — grayscale, 24-color matrix, and dead leaves. The setup lets you verify your camera’s ability to consistently reproduce colors, manage noise, and preserve contrast and texture in comparison with an objective reference. Using recommended lighting, you can simulate a dynamic range of up to 15 EV in the test scene.

Reference:

Charts: CT002 (CT001 old version for Kinoflo)
Transmitting lighting systems: GEMINI_002

Contrast preservation:

Histogram
Entropy for each channel

Color consistency:

Color fidelity
White balance
Metrics: ∆L, ∆a, ∆b, ∆ab, ∆E, ∆C, ∆H

Texture preservation:

Texture MTF and acutance
Edge MTF and acutance
Visual noise at 50%
Exposure (grey level at 18%)

HDR Tone Mapping – Natural Scene charts

This setup is composed of two Gemini with their Natural Scene charts. This detailed real-life scene is used for performing lab-based perceptual analyses under controllable HDR conditions. It also facilitates evaluation of texture loss, moiré, aliasing, color shift, and sharpness.

Only perceptual analysis:

HDR rendering in natural scene
Artifacts

Reference:

Charts: NS002 (NS001 old version for Kinoflo)
Transmitting lighting systems: GEMINI_002

Expertise	Camera
Industry	AR/VR, Automotive, Computing, Drones / Action cameras, DSLR & Lens, Security, Smartphone

Key Highlights

HDR Tone Mapping – Composite charts

HDR Tone Mapping – Natural Scene charts

Expertise

Specialties

Industries

Solutions

Testing Tools

Services

Data

Company

Our Company

Research

News & Events

HDR Tone Mapping

Key Highlights

HDR Tone Mapping – Composite charts

HDR Tone Mapping – Natural Scene charts

Specialties

Industries

Testing Tools

Services

Data

Our Company

Research

News & Events

Login