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Sineimage YE0276 Reflective Color Spilled Coins (Dead Leaves) Test Chart

Sineimage Color Spilled Coins chart (a variant of the Dead Leaves chart) is for measuring texture sharpness has several advantages over older Dead Leaves charts
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Date:2018-02-03  Browse:
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Reflective Color Spilled Coins (Dead Leaves) Test Chart for measuring texture sharpness 

 

dead leaves test charts

The Color  Spilled Coins test chart (a variant of the Dead Leaves test chart) for measuring texture sharpness has several advantages over older Dead Leaves charts. Key features:

  • The Scattered Coins pattern in the central region is almost perfectly scale-invariant (unlike conventional dead leaves tet charts), enhancing the accuracy and robustness of MTF measurements so they correlate well with other methods (such as the slanted-edge) for RAW images (which have no nonuniform or nonlinear processing).
  • Maximum contrast range is 3:1, as called for in the CPIQ Phase 3 draft Texture Blur Metric draft specification.
  • It is more uniform, i.e., is more shift-invariant than other Dead Leaves charts.
  • It contains slanted edges (2:1 and 4:1 contrast) for convenient comparisons with the dead leaves pattern.
  • The gray area to the left and right of the dead leaves pattern has the same mean density as the dead leaves pattern, allowing it to be used for effective noise PSD removal using the McElvain et. al. technique.
  • Registration marks and 16 grayscale patches are included. The linear levels used to create the grayscale patches are 0 through 255 in steps of 17 (same as the Siemens Star chart in the draft of the upcoming ISO 12233 standard).


Spilled Coins test chart sizes Spilled Coins region Printed region Media 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
X-Small (High Precision Transmissive) 5.536" × 5.536"
141 mm × 141 mm
9.25" × 7.75"
159 mm × 197 mm

10" × 8"
254 mm × 203 mm

 

Remark: We support Any customized test charts only if you have high resolution image and size.

 

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