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Adjust measurement parameters before beginning measurements. Users can adjust the RGB settings and camera speed.

RGB

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Users can adjust three RGB parameters: decimate interval, stripe width, and whether to use the mean or midpoint RGB value. For more information regarding how RGB data is calculated please see Appendix A: RGB Calculation

  • Decimate Interval: The interval that sets the recorded offset along the length of the core. This value can be set between 1 - 2.9cm
  • Stripe Width: Centered in the middle of the core, this determines the width across the core that will be used to calculate RGB data. This is typically set to 2cm. While the value can be changed higher or lower it is commonly at 2 cm. The advantage is this width provides enough material to not exaggerate small disturbances but rather provides RGB data representative of the bulk lithology.
  • Mean or Midpoint: Can choose how RGB is calculated for the interval. Interval mean calculates the mean RGB values over the interval. Interval Midpoint uses the RGB value at the center of the interval. This is typically set to Interval Mean.

To Adjust these parameters go to Instruments > General Setup

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Camera Speed

Camera Speed is calculated during the calibration procedure. The camera speed set must be lower than the speed determined by the calibration or else the camera will start 'dropping lines'. Dropped lines means the camera is moving too quickly to calculate the RGB and offsets at the bottom of the core will return values of '0'.

To adjust the camera speed go to DAQ > Image Capture Setup

Start A Measurement

  1. Click the green 'Start' Button in the 'IMS Control' panel.
  2. The 'Sample Information' Window will pop up (FIGURE XX).



  3. The area on the left has four fields to define the condition of the sample measurement:
    1. Image Type: 'Section Imaging' or '360 Imaging'. For instructions on the 360 imaging refer to XXXXXX
    2. Wet/Dry: Indicates the type of the material being imaged
    3. Condition: 'Pristine' or 'Sampled/Altered'. Sampled/altered could include imaging the working half or a highly disturbed section. Most instances should be pristine.
    4. 360 Imaging: This area is grayed out unless '360 Imaging' Image Type is selected. For instructions on the 360 imaging refer to XXXXXX

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       7. An 'Image Crop' window pops up. An image should be cropped to include all material and the inner edge of the end-cap. RGB data will exclude data outside of the Crop area. The green box is the IMS estimation of the crop area. Click and drag the green lines to adjust the cropped area  at the top,  bottom,           and sides of the image. Tools in this window include:

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