Imatest Version 26.1 | Checkerboard Local Magnification, Stray Light, CCE Summary Metrics

1 | Checkerboard Local Magnification

· Checkerboard analysis enhanced to calculate local magnification and related metrics based on Q.Wang et al. 2016

· Quantifies how magnification varies across the image field

· Provides deeper insight into lens distortion beyond a single global distortion metric

· Models the relationship between object and image radii

· Computes both radial and tangential magnification variations

· Outputs distortion plots, projection classification, corrected images, and data for further analysis

2 | Stray Light (Flare)

· Geometric camera model masking: with the OpenCV Fisheye, Brown-Conrady, pinhole & radial distortion

· Easily use the same reference image detection settings as analysis image mask settings

· Analyze a single color channel

· Keep all connected components in image processing masking.

3 | New Outputs

· Color/Tone CCE Summary Metrics: JSON/CSV results now includes the mean color contrast enhancement (CCE) from all patch pairs.

· Flatfield nonuniformity with respect to center ROI:  JSON/CSV results now includes the uniformity of the side and corner regions relative to the center region, as a percentage (0-100).

4 | Main Window

· Open an image in Image Statistics via the thumbnail menu.
· License Manager: New Offline Deactivation workflow and general stability improvements.

· Color Science: Now includes the ability to use Display P3 (D65) luminance weights.

· Imatest IT is now compatible with .NET framework 9.0

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Imatest 26.1 has been released, and users who are still within the free upgrade period are encouraged to upgrade and experience the new features! If your software is no longer under the upgrade support period and you wish to renew your upgrade, you can contact us at sales@colorspace.com.cn.

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