Download Fully-Enabled WIR i-Star Professional Edition v7.0 (Beta)

Powerful CIELAB based, full tonal scale, comparative image analysis software with simplified single-number or two-number reporting of results. Developed by Wilhelm Imaging Research, WIR i-Star also provides comprehensive analysis of image appearance differences with specific colors, including critical human skintone colors, or with user-selected pictorial "regions of interest" in both color and black-and-white photographic images.

Free Download of the software WIR i-Star Professional Edition (runs on Windows XP and 7). 2015 free beta version.

WIR Software Development and Documentation Team: Dmitriy Shklyarov (chief programmer), Yaw Nti-Addae, Kabenla Armah, Mark McCormick-Goodhart (consultant), Dimitar Tasev, Henry Wilhelm, Tessa Bergan (editor), and Carol Brower Wilhelm.

WIR i-Star
Professional User Guide

View 83-page User Guide
Download 83-page PDF
User Guide
(v2/January 1, 2010)

Description: This illustrated manual contains everything necessary to understand and operate the WIR i-Star software. Topics covered include: User Interface, Features, Working with i-Star, and How to Interpret the Results.

An Example of a WIR i-Star Test Target

The WIR i-Star sRGBcolorspace Target (v1.0) is a generic 800 patch test target for I* analysis. The target maps 12 hues with varying lightness and chroma, plus neutrals, near-neutrals, and skintone colors over the full tonal gradient and color gamut of the sRGB color space. Test targets can be made for other color spaces such as Adobe RGB and ProPhoto RGB (a large gamut colorspace also known as ROMM RGB).

The human skintone colors section of the generic WIR i-Star target consists of 100 patches generated by adjusting the L* values of the measured LAB values for the "Light Skin" and "Dark Skin" color patches in the Macbeth ColorChecker chart. Photographs of people may range from very high L* values in specular highlight areas to very low L* values in deep shadow areas of the face. The number of the skintone color patches and neutral/near-neutral patches relative to the total number of patches in the test chart provides a means of weighting these colors in the i-Star analysis. The skintone colors section of the target can also be analyzed separately as an i-Star "Region of Interest."

Download WIR i-Star Test Target

Coming Soon: WIR i-Star Professional Edition Forum

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WIR i-Star Tutorial 1

"Comparison of
Printer Profiles"

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January 1, 2010

WIR i-Star Tutorial 2

"Light Fading of
Inkjet Prints"

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January 1, 2010

WIR i-Star Tutorial 3

"Ozone Fading of
Inkjet Prints"

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January 1, 2010

WIR i-Star Tutorial 4

"Comparison of OEM vs
Third-Party Inks"

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January 1, 2010

WIR i-Star Tutorial 5

"Progressive Print Quality Losses that Occur as an Inkjet Cartridge Becomes Exhausted Through Use"

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January 1, 2010

WIR i-Star File Templates

Description: This zip file contains file templates to help organize information in input files

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