Image Enhancement for Low Contrast Document (IELCD)

This is an amazing AI Vision filter used to improve the quality of low contrast documents.

This function is built on top of Image Enhancement for Night-Vision (IENV), a feature implemented in UltimateALPR-SDK for night vision.

Please check for more technical information.

Configuration entry: ielcd_enabled

Below you can see the filter applied on a random image found on Google using terms “low contrast document”. The original image (may be subject to copyrights) is at



_images/input.jpg _images/output.jpg