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Spilled Coins Cross Test Chart

SKU: ISC-CROSS

The updated Imatest Spilled Coins Cross test charts use cross-correlation calculation texture metrics to provide improved stability for images with nonlinear noise reduction. Users can now more accurately differentiate between noise and texture. Random/Dead Leaves Cross, which runs under the interactive Rescharts interface, measures SFR (Spatial Frequency Response) or MTF (Modulation Transfer Function) from random scale-invariant (or approximately scale-invariant) test charts, including “Dead Leaves” and “Spilled Coins” charts.

Availability: Available to Order

$430.00

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Spilled Coins Cross Test Chart

SKU: ISC-CROSS

$430.00

Details

Key features of the Imatest Spilled Coins Cross chart:

  • Contrast of the pattern reflectance range is 3:1, with 18% gray background as per the CPIQ new standards.
  • 8 Registration marks are placed around the active area to attain a more accurate transformation between the reference image and the test image.
  • 16 grayscale OECF patches are included for linearization prior to texture response calculation.
  • The chart contains slanted edges (2:1 and 4:1 contrast) for convenient comparisons between Texture MTF and slanted-edge MTF.
  • Backwards Compatibility:  The chart maintains flat areas of the same mean reflectance as the pattern on either side of the center area, used for Noise Power Spectral Density estimation in the classic “Direct” Texture MTF method supported by our other charts.
  • Pattern design is more uniform, i.e., is more shift-invariant than other vendors’ Dead Leaves charts.

 

Spilled Coins Cross

chart sizes

Spilled Coins regionPrinted regionMedia size total
Large 12" × 12"
305 mm × 305 mm
22.4" × 16.8"
569 mm × 426 mm
24" × 18"
610 mm × 458 mm
Medium 8" × 8"
203 mm × 203 mm
14.93" × 11.2"
379 mm × 284 mm
16" × 12"
458 mm × 305 mm
Small 6" × 6"
152 mm × 152 mm
11.2" × 8.4"
284 mm × 213 mm
12" × 10"
305 mm × 254 mm


Read more about Random/Dead Leaves Cross chart analysis.