What is CPIQ?
IEEE-SA working group P1858 created the CPIQ standard. CPIQ seeks to standardize image quality test metrics and methodologies across the mobile device industry, correlate objective test results with human perception, and combine this data into a meaningful consumer rating system.
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Imatest is pleased to announce the release of version 4.4, which includes the following features:
Support for all 2016 Camera Phone Image Quality (CPIQ) standard metrics for mobile device image quality. CPIQ serves as a way to assess and communicate image quality to the vast majority of consumers who are unsure how to judge and compare device image quality. See a full CPIQ overview.
Auto-focus, Auto White Balance, and Auto Exposure (AAA) metrics for faster image adjustments. AAA metrics were created to address the video image quality aspects that most affect user experience.
We are pleased to announce Imatest 4.3. New features include:
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- Support for Linux (Ubuntu 14.04) across all Imatest software
- Python API for IT for a simplified, flexible development environment
- SSIM module for estimating the loss of image quality caused by image processing, especially data compression
This new 24-patch Transmissive Color target can be used for evaluating color accuracy using a lightbox, which can be more compact and uniform than a reflective lighting system.
These targets are produced with high-precision Light-Valve Technology. (more…)
Imatest is pleased to announce our partnership with isMedia, a specialist in building digital imaging test machines and custom test solutions. This partnership will provide customers with a wide range of highly customizable test machines capable of extensive image quality analysis on manufacturing lines.
The Sinusoidal Siemens Star test chart allows you to measure MTF and limiting resolution with a chart that provides angular response and may be less affected by signal processing (especially sharpening) than slanted-edges. Siemens star MTF20 (the spatial frequency where MTF is 20% of its low frequency value) is a good estimate of limiting resolution. (more…)
We are pleased to announce our new High Dynamic Range (HDR) test chart with a density range exceeding 120dB (optical density >6.0). This chart allows you to the measure the dynamic range, tonal response and noise of HDR cameras with a single image instead of multiple, exposure bracketed images. It also contains slanted edges for MTF measurements. (more…)