Checkerboard Test Chart
The Checkerboard Test Chart is available on matte inkjet, photographic paper, film, and chrome-on-glass substrates. It is designed to work with the Checkerboard module. This module enhances testing of varying distances by supplying more testable regions to provide automated measurements of sharpness, lateral chromatic aberration, and distortion from images.
For NIR Compatible Checkerboard Charts including Photographic or B&W LVT Film, please click here.
Learn more about the Checkerboard Module. Please note that this module runs slower than eSFR ISO and SFRplus modules and is less tolerant to extreme amounts of defocus or blooming degradations.
Email charts@imatest.com for current lead time on black and white film charts.
Description
The Checkerboard Test Chart is available in Visible Spectrum and Near Infrared. In Visible Spectrum, choose between matte inkjet or transmissive LVT film substrates. Contrast ratios include 4:1, 10:1 and 45:1 for the inkjet charts, and additional 100:1 for film targets. All inkjet and film options are printed with 12 vertical squares.
Chrome on Glass Checkerboard Targets are also available at sizes ≤ 4″ with 10:1 contrast ratio.
Pre-Mounted Checkerboard Charts are also available for use with Imatest Uniform Light Sources.
Learn more about the Checkerboard Module.
Checkboard Test Chart Options:
| Spectrum | Substrate | Conrast Ratio | Size | Square Height | MP Suitability |
|---|---|---|---|---|---|
| Visible Only | Reflective Matte | 4:1, 10:1, 45:1 | XS, SM, MD, LG (see below) | 12 | See table below |
| Visible Only | Transmissive Color Film | 4:1, 10:1, 100:1 | 8” x 10” (203mm x 254mm) | 12 | 13 MP |
Paper Size and Active Area Options for Reflective Substrates
Inkjet charts are available in four standard sizes:
| Paper Size (including margin) | Active Area | MP Suitability | |
|---|---|---|---|
| X-Small | 215.9mm x 323.85mm (8.5″ × 12.75″) | 200.66mm x 300.99mm (7.9″ × 11.85″) | 3.1 |
| Small | 406.4mm x 609.6mm (16″ × 24″) | 391.16mm x 586.74mm (15.4″ × 23.1″) | 5.9 |
| Medium | 609.6mm x 914.4mm (24″ × 36″) | 594.36 x 891.54mm (23.4″ × 35.1″) | 14.3 |
| Large | 1107.4mm x 1676.4mm (43.6″ × 66″) | 1102.35mm x 1653.54mm (43.4″ × 65.1″) | 28.1 |
Photographic charts are available in two standard sizes:
| Paper Size (including margin) | Active Area | MP Suitability | |
|---|---|---|---|
| Small | 406.4mm x 609.6mm (16″ × 24″) | 391.16mm x 586.74mm (15.4″ × 23.1″) | 11.8 |
| Medium | 609.6mm x 914.4mm (24″ × 36″) | 594.36mm x 891.54mm (23.4″ × 35.1″) | 28.6 |
Documentation and software support
Checkerboard can be run either through the highly-interactive Rescharts interface or as a batch-capable fixed module. The key documentation for getting started is Using Checkerboard Part 1, found in the Checkerboard section of the Documentation page. Checkerboard provides the most accurate distortion measurements.
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