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# Configure LUT

LUT is short for Look-up Table, which is basically an array. It provides a mathematically precise and fast way to replace the pixel values in the image by values defined by you. For example, you can create a "luminance look-up table" to replace the luminance value (or gray value) in the images to optimize the luminance of the images. The Software sorts out the frequently-used LUT parameters in the LUT section on the Image Processing tab.

Make sure you have set LUT Index and LUT Value in the feature tree.

LUT Index

  Set a pixel value that you want to replace with a new value.

LUT Value

  Set a new pixel value to replace the value you set in LUT Index.

1. Connect the camera to the Software and select the camera.
2. Go to the Advanced Features tab on the Feature List panel.
3. Click to display the LUT parameters.
4. Select a value (e.g., Luminance, Red, Green, or Blue) from LUT Selector to set the LUT type.
   Luminance

     Luminance LUT, i.e., the look-up table for optimizing luminance of the images.

   Red

     Red LUT, i.e., the look-up table for optimizing red value of the images.

   Green

     Green LUT, i.e., the look-up table for optimizing the green value of the images.

   Blue

     Blue LUT, i.e., the look-up table for optimizing the blue value of the images.

   Note:

   The available LUT types vary with different camera models.

5. Turn on LUT Enable to enable LUT.
6. Select the type of line (Fold Line, Curve, Free Line, and Adaptive) to be displayed on the LUT graph.
   Note:

   - Each point on the line defines the Output value in corresponding to an Input value. The Input values represent the pixel values that need to be replaced, while the Output values represent the new pixel values that will replace the old ones.

   - By default, the maximum Input value for the line is the value you set for LUT Index, and the maximum Output value for the line is the value you set for LUT Value.

7. Optional: Adjust the line on the LUT graph.

   - For Fold Line and Curve, drag each node to edit the line.

     Note:

     Scan the QR code to view the video clip which shows editing line by dragging each node.

   - For Free Line, click or drag the cursor on the graph to edit the line.

   - For Adaptive, specify gamma, contrast, and luminance values and the LUT graph will be automatically generated.

   Note:

   You can zoom in the LUT graph for higher precision by scrolling up the mouse wheel on the graph.

8. Click Execute of Apply to Camera to apply the LUT settings to the camera.
9. Optional: Perform the following operations.

   Option | Description
   --- | ---
   Load LUT Settings from Camera | Click Execute of Load from Camera to load LUT settings from the camera to the chart.
   Export LUT Settings from File | Click Execute of Export to File to export the LUT settings to the local PC as a TXT file.
   Import LUT Settings from File | Click Execute of Import from File to import the LUT settings from a TXT file.
   Clear Line Settings | Click Execute of Clear to clear the line settings of the chart.