Veiling glare and Dynamic Range measurement from two images Presentation

Stray light (veiling glare) degrades image quality by fogging important details in darker areas, but it can be challenging to measure.

Imatest founder and CTO Norman Koren presents a technique that uses two images of the Contrast Resolution chart, taken without and with a mask, to obtain:

• A measurement of veiling glare
• insight into its effect on camera performance, especially the visibility of objects in darker areas
• two DR measurements

Koren_Flare_Dynamic_Range (1)

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Imatest Resolution Webinar

 

English Version

 

English with Mandarin Translation

 

 


Download the study   Imatest Sharpness & Resolution Webinar 2022

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Google’s Android Image Quality Expert Pursues New Role With Imatest

Imatest is happy to welcome Jonathan Phillips, previous Google Android head of imaging, to the team as Vice President of Imaging. Under Phillips’ technical leadership, Imatest will be expanding its software features, equipment portfolio, and consulting services across imaging market segments. As the previous leader of image quality in Google’s Android organization, Phillips focused on the launch and establishment of Google’s Pixel phone line, particularly its camera and display image quality and features. In addition, Jonathan has an extensive background in image quality with NVIDIA and Kodak, and is a co-author of “Camera Image Quality Benchmarking”. (more…)

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Camera to Chart Alignment

Centering test charts is critical for image quality testing. If the camera is not properly aligned with the test chart, your image may not be suitable for analysis; you may not know if the results are truly indicative of the camera system, or from an error in positioning the chart.  (more…)

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