For measurement of sharpness, the main driver of variation is noise. A powerful noise reduction technique called modified apodization is available for slanted-edge measurements (SFR, SFRplus, eSFR ISO and SFRreg). This technique makes virtually no difference in low-noise images, but it can significantly improve measurement accuracy for noisy images, especially at high spatial frequencies (f > Nyquist/2). It is applied when the MTF noise reduction (modified apodization) checkbox is checked in the SFR input dialog box or the SFRplus or eSFR ISO More settings window. (more…)

Imatest requires installation Matlab Compiler Runtime (MCR) in order to run. Different versions of Imatest depend on different versions of the library shown in the below table.  Imatest FULL Installations include the appropriate MCR library, while imatest upgrade installations do not.  If you move to a version of Imatest that uses a new MCR library, you will need to download the full installer, otherwise you can save some space and download time by installing the upgrade version.

The MCR is included in all 3.6+ downloads.  The download and installation may take several minutes each. When the installation is finished,

• The MCR should be located in %ProgramFiles%MATLABMATLAB Compiler Runtimev714 (for Imatest 3.7+; …V711 for 3.6) in 32-bit systems (%ProgramFiles% is C:Program Files in English-language Win32 installations) or %ProgramFiles(x86)%MATLABMATLAB Compiler Runtimev714 (or …V711) in 64-bit systems (%ProgramFiles(x86)% is C:Program Files (x86) in English-language Win64 installations)
• Imatest is located in %ProgramFiles%ImatestImatest in 32-bit systems (%ProgramFiles is C:Program Files in English-language Win32 installations) or %ProgramFiles(x86)%ImatestImatest in 64-bit systems (%ProgramFiles(x86) is C:Program Files (x86) in English-language Win64 installations)

New infrared test charts and analysis software modernize testing of infrared cameras

Once viewed as exotic devices, infrared camera systems have moved into the mainstream in many industries, particularly in security and defense. From night-vision helmets, scopes, and security cameras to ballistic missile tracking telescopes, IR cameras have become as commonplace as they are mission-critical. As with other advanced technologies, quality control is key to successful development and application of IR camera systems, with the quality of the image itself being paramount to most organizations. (more…)

If a different version of Matlab from the one used for Imatest has been installed on your system, there is a tiny chance that you may experience a path conflict that causes a similar error message— or Imatest may simply fail to run. This rarely happens because the batch file that initiates Imatest sets the path. Path issues and solutions are discussed in the Imatest IT EXE instructions.

Now Available – Infrared Test Charts

Imatest’s new Infrared SFRplus test charts support testing of visible light through Medium Wavelength Infrared (MWIR). The large charts have a sturdy aluminum substrate and are suitable for outdoor field testing, as well as lab testing. Details here. (more…)

The Infrared SFRplus test chart enables accurate, objective testing of infrared camera systems and supports wavelengths from visible light through MWIR.

Details here .

Purchase here .

Toshiba America Electronic Components, Inc. (TAEC), a committed leader that collaborates with technology companies to create breakthrough designs, and Imatest LLC, maker of the world’s most popular image quality testing software, have teamed up to enhance Imatest’s Image Sensor (IS) Edition, a highly anticipated and powerful tool to help engineers responsible for configuring Toshiba image sensors.

Details here

Join the new Imatest users group to share questions and answers with other image quality testing professionals. Join here

Version 3.6 of Imatest’s Master Edition delivers sophisticated blemish detection capabilities based on the human visual system’s ability to detect blemishes. Soon this feature will also be added to the Industrial Testing Edition to enable blemish detection in high-volume camera-system production. Details here