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ISO 12233: 2014 Edge SFR (eSFR) Inkjet chart Suitable For HDTV And Cinema

Categories Spectrophotometer Accessories
Brand Name: IMATEST
Model Number: ESFR charts
MOQ: 1set
Price: Negotiable
Payment Terms: T/T, L/C, Paypal
Supply Ability: 5000sets per month
Delivery Time: 3 working days
Packaging Details: N/A
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    ISO 12233: 2014 Edge SFR (eSFR) Inkjet chart Suitable For HDTV And Cinema

    ISO 12233: 2014 Edge SFR (eSFR) Inkjet chart


    Imatest ISO 12233:2014 E-SFR charts are implementations of the Low Contrast Edge SFR (E-SFR) test chart illustrated in Section 6.1 and Annex Cof the ISO Standard Document. The charts come in three versions:

    • Standard: basic, no extra measurement features

    • Enhanced: extra squares, wedges, and color patterns when printed with technologies that allow color

    • Extended: similar to Enhanced, but with a 16:9 aspect ratio, suitable for HDTV and cinema (Note: Works with Matlab esfrChart)

    We currently offer these charts in inkjet format, with Enhanced versionsavailable as photographic prints. All Imatest ISO 12233:2014 E-SFR charts are fully compliant with the ISO standard.


    Chart SizeStandardEnhancedExtendedMegapixel Suitability
    1x200 mm × 305 mm200 mm × 305 mm200 mm × 365 mm3.4 MP
    7.875" × 12"7.875" × 12"7.875" × 14.5"
    2x400 mm × 610 mm400 mm × 610 mm400 mm × 730 mm13.4 MP
    15.75" × 24"15.75" × 24"15.75" × 29"
    4x800 mm × 1225 mm800 mm × 1225 mm800 mm × 1460 mm24.9 MP
    31.5" × 48"31.5" × 48"31.5" × 58"

    The Enhanced and Extended Versions are also available with Extra Wedges.


    Enhanced Version


    The Imatest Enhanced ISO 12233:2014 E-SFR chart has all the features of the Standard chart, keeping the 3:2 aspect ratio, with the addition of six added slanted squaresfor measuring performance near the image boundaries and hyperbolic wedges for visual analysis or analysis with the Imatest Wedge module. It also has 16 color patches when produced with technologies that allow color. Since these additions are in regions of the chart not covered by the standard, compliance with the standard is unaffected. The Enhanced Version is also available with Extra Wedges.


    The differences between the Imatest charts and the chart illustrated in the standard are listed below. Even with these differences the Imatest chart is in full compliance with the standard.

    • A 20 patch OECF grayscale pattern* is used as opposed to the 16 patch version.
    • The Focus Patterns in the centers of the squares are rectangular (to increase the MTF measurement area) and are designed to reduce interference with automatic edge detection.
    • There are four registration marks instead of three to facilitate automated region detection. (Four features are required for a projective transform.)
    • An additional mark above the lower-left registration mark is used for detecting chart orientation.

    The differences between the Enhanced and Standard Versions are as follows:

    • Six extra slanted squares are added for measuring performance near the image boundaries.
    • Several hyperbolic wedges with spatial frequencies, similar to the CIPA chart referenced in the ISO standard, for visual analysis or use with the Imatest Wedge module.
    • 16 color patches when produced with technologies that allow color (inkjet or color LVT), with colors similar to the industry-standard 24-color test chart.

    This chart will work with the fully-automated eSFR ISO module, starting with the Imatest 4.0 release.


    Extended Version

    The Imatest Extended ISO 12233:2014 E-SFR chart has all the features of the Enhanced chart (six extra squares, wedges, and 16 color patches where possible), but has a16:9 aspect ratio, which makes it suitable for HDTV and cinema measurements (and it also works well with 3:2 aspect ratio DSLRs). It is fully compliant with the standard. The Extended Version is also available with Extra Wedges.

    This chart will work with the fully-automated eSFR ISO module, starting with the Imatest 4.0 release.


    Standard Version


    This chart, which has a 3:2 aspect ratio, is a "no-frills" implementation of the standard. For most work we recommend the Enhanced or Extended charts, which have additional edges for measuring performance near the image boundaries, as well as hyperbolic wedges and color patches (where the technology allows). These chartsmaintain full compliance with the standard.

    The Imatest Standard ISO 12233:2014 E-SFR chart closely resembles the Low contrast E-SFR test chart illustrated in section 6.1 and Annex C of the ISO standard document, with a few differences, all of which are fully compliant with the ISO standard.

    • A 20 patch OECF grayscale pattern* is used instead of the 16 patch version.
    • The Focus Patterns in the centers of the squares are rectangular (to increase theMTFmeasurement area) and are designed to reduce interference with automatic edge detection.
    • There are four registration marks instead of three to facilitate automated region detection. (Four features are required for a projective transform.)
    • An additional mark above the lower-left registration mark is used for detecting chart orientation.

    This chart will work with the fully-automated eSFR ISO module, starting with the Imatest 4.0 release.

    Megapixel Quality Ratings

    Megapixel suitability is based on analysis of Modulation Transfer Function (MTF) obtained from a chart image captured using a 1:1 magnification lens (Canon 65mm f/2.8 1-5x macro) and a 6.5µm pixel size sensor (Canon EOS 6D). In order to consider performance throughout the cameras range of expected sharpness, MTF90 (the spatial frequency where MTF is 90%) is weighted at 0.5, MTF70 is weighted at 0.35, and MTF50 is weighted at 0.15. Conversion to megapixels is based on the Imatest Chart Quality Index (CQI) calculation which determines sensor height suitability using the equation 2 * MTFxx (cycles per object mm) * vertical chart height (mm), where xx is 90, 70 or 50. Megapixel suitability calculations assume that (1) the lens is of high quality, (2) that the chart fills the vertical field of view (vFoV) of the camera system, and (3) that the sensor aspect ratio is 3:2. For 16:9 aspect ratio sensors (with pillarboxed framing, if applicable), multiply the megapixel suitability by 1.185. For 4:3 aspect ratio sensors (with left/right sides of chart cropped), multiply megapixel suitability by 0.889. Charts can be suitable for significantly higher megapixel counts if the minimum resolvable feature size of the lens is larger than the pixel size or the chart fills less than the full sensor vertical field of view.


    *Please Note: When Matte surface is selected, the OECF 14524 chart does not meet the standard for maximum density.

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