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In image processing, Leveling makes the dark values darker and the light values lighter. It enhances the contrast and intensity by using the histogram of the image and a color distribution-based algorithm.

There are three Leveling types in OriginPro:

  • Level
  • Contrast
  • Intensity

This function allows you to choose the Leveling type, specify the percentage of white pixels and the percentage of black pixels. Choosing Level Report in the Leveling dialog can create a report for this function.

Dialog of Leveling


With the following images, we can see that the contrast is improved in the output image.

Example of Leveling (original) Example of Leveling (output)
Original image
Output image


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