Re: CxF format

4 May 2020


      Yes! FYI, you can also measure your own ColorCheckerSG and other targets and replace XRite’s reference file with your own. One would wish the UI would have this level of customization but, if you know where the files are kept, we’ve had this level of flexibility in i1Profiler since the beginning.

Scott Martin
www.on-sight.com
...
On May 4, 2020, at 11:44 AM, Robin Myers via colorsync-users <colorsync-users@lists.apple.com> wrote:
Hello Mr. Breton,
If you were to look near the end of the ColorChecker.cxf file provided by X-Rite, you would find the MeasurementSpec block of XML (highlighted in blue below). Inside this block is the DeviceIllumination (highlighted in red below), which is what you are looking for.
<ColorSpecificationCollection>
      	<ColorSpecification Id="CSD50-2">
      		<TristimulusSpec>
      			<Illuminant>D50</Illuminant>
      			<Observer>2_Degree</Observer>
      			<Method>E308_Table5</Method>
      		</TristimulusSpec>
      		<MeasurementSpec>
      			<MeasurementType>Colorimetric_Reflectance</MeasurementType>
      			<GeometryChoice>
      				<SingleAngle>
      					<SingleAngleConfiguration>Annular</SingleAngleConfiguration>
      					<IlluminationAngle>45.0</IlluminationAngle>
      					<MeasurementAngle>0.0</MeasurementAngle>
      				</SingleAngle>
      			</GeometryChoice>
      		</MeasurementSpec>
      	</ColorSpecification>
      	<ColorSpecification Id="CSD65-2">
      		<TristimulusSpec>
      			<Illuminant>D65</Illuminant>
      			<Observer>10_Degree</Observer>
      			<Method>E308_Table6</Method>
      		</TristimulusSpec>
      		<MeasurementSpec>
      			<MeasurementType>Spectrum_Reflectance</MeasurementType>
      			<GeometryChoice>
      				<SingleAngle>
      					<SingleAngleConfiguration>Annular</SingleAngleConfiguration>
      					<IlluminationAngle>45.0</IlluminationAngle>
      					<MeasurementAngle>0.0</MeasurementAngle>
      				</SingleAngle>
      			</GeometryChoice>
      			<WavelengthRange StartWL="400" Increment="10"/>
      			<CalibrationStandard>Ceramic</CalibrationStandard>
      			<Device>
      				<Manufacturer>XRite</Manufacturer>
      				<Model>XR962</Model>
      				<SerialNumber/>
      				<DeviceClass>DeviceClass_Spot</DeviceClass>
      				<DeviceFilter>Filter_None</DeviceFilter>
      				<DeviceIllumination>M0_Incandescent</DeviceIllumination>
      				<DevicePolarization>false</DevicePolarization>
      			</Device>
      		</MeasurementSpec>
      	</ColorSpecification>
      </ColorSpecificationCollection>
Regards,
Robin Myers
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