Tel:
China Color Matching Spectrophotometer manufacturer
Shenzhen ThreeNH Technology Co., Ltd.

Shenzhen ThreeNH Technology Co., Ltd.

Leader Of Color Management In China

Home ProductsResolution Test Target

Texture Charts Spectrophotometer Accessories , Color Management Software Tests Camera

Texture Charts Spectrophotometer Accessories , Color Management Software Tests Camera

Texture Charts Spectrophotometer Accessories , Color Management Software Tests Camera

Product Details:

Brand Name: IMATEST
Model Number: Texture charts

Payment & Shipping Terms:

Minimum Order Quantity: 1set
Price: Negotiable
Packaging Details: N/A
Delivery Time: 3 working days
Payment Terms: T/T, L/C, Paypal
Supply Ability: 5000sets per month
Contact Now
Detailed Product Description

Color Spilled Coins (Dead Leaves) Test Chart​ color matching software

 

 

The Color Imatest Spilled Coins chart is a variant of the Dead Leaves chart designed to measure texture sharpness. It has several advantages over older Dead Leaves charts, including nearly perfect scale-invariance, which improves the accuracy and robustness of measurements, and gray regions to the left and right of the chart that facilitate noise removal (using a technique where gray patch noise Power Spectral Density is subtracted from the signal + noise PSD of the central Spilled coins region).

 

 

Details

 

The Color Imatest Spilled Coins chart (a variant of the Dead Leaves 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 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 chart sizes

Spilled Coins region

Printed region

Media size total

Large

12" × 12"

22.4" × 16.8"

24" × 18"

305 mm × 305 mm

569 mm × 426 mm

610 mm × 458 mm

Medium

8" × 8"

14.93" × 11.2"

16" × 12"

203 mm × 203 mm

379 mm × 284 mm

458 mm × 305 mm

Small

6" × 6"

11.2" × 8.4"

12" × 10"

152 mm × 152 mm

284 mm × 213 mm

305 mm × 254 mm

X-Small (High Precision Transmissive)

5.536" × 5.536"

9.25" × 7.75"

10" × 8"

141 mm × 141 mm

159 mm × 197 mm

254 mm × 203 mm

 

Texture Charts Spectrophotometer Accessories , Color Management Software Tests Camera

 

Contact Details
Shenzhen ThreeNH Technology Co., Ltd.

Contact Person: sales

Send your inquiry directly to us (0 / 3000)

Shenzhen ThreeNH Technology Co., Ltd.
4/F, Building 8, Nangang Second Industry Zone, Xili, Nanshan District, Shenzhen, China
Tel:86-0755-27198826-601
China Good Quality Color Matching Spectrophotometer Supplier. Copyright © 2017 - 2019 colormatchingspectrophotometer.com. All Rights Reserved.