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Spectral Sensor App

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June 22, 2026

July 22, 2026

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« InfoDR Test Chart and Analysis

July 2026 Newsletter »

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Company

Spectral Sensor App
InfoDR Test Chart and Analysis
2025 Year In Review

Imaging Tech

Camera performance simulator based on information theory
Validating Information Metrics Correlation with Object Detection
Improving Image Equity: Representing diverse skin tones in photographic test charts for digital camera characterization

Newsletters

July 2026 Newsletter
May 2026 Newsletter
April 2026 Newsletter

Other

Boulder image quality lab addresses racial bias in consumer cameras
View Our Updated Brochure
Uniform Reflectance Targets

Product

Imatest 26.1 Release
Imatest Release Version 25.2
Gamma Scientific RS-9

All Versions

Image Processing for Image Information Metrics
Interpolated slanted-edge SFR (MTF) calculation
Fixed versus Interactive modules

Imatest IT

ImportError: libpython3.9.so.1.0: cannot open shared object file: No such file or directory
Error Message: “Input must be a row vector of characters.”
Python Idle Error: Error writing to output stream.

Licensing

Imatest Unable to Access Licensing Server for Imatest 5.0 and Prior
Connectivity requirements for online or floating license activation
Error -4304: Users having problems activating licenses or starting trials

Master Edition

Interactive vs. Auto(Batch) Analyses
5.2 MacOS Mojave system freezes during file operations
Imatest won’t launch on Mac OS (Catalina, Mojave)

Test Setup

Test Chart Life Span
Camera to Chart Alignment
Obtaining Uniform Flat-Field Images

Troubleshooting

Imatest not vulnerable to Apache log4j security compromise
Some Imatest calculations up to v5.1 inappropriately averaged zeros with summary metrics
MATLAB Runtime Update 5 or greater required by Imatest 5.2

Digital Image Quality Testing

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