Sea-thru is a physics-based


color reconstruction algorithm


designed for




RGB-D images.

Sea-thru works on RAW images or videos taken under natural light.

The distance (D) information can come from any source, e.g., structure-from-motion from multiple images, stereo image pair, specialized sensors, etc.

Sea-thru is a physics-based algorithm using the Akkaynak-Treibitz underwater image formation model (CVPR 2018). It does not use neural networks and was not trained on any dataset. It works without a color chart, or any information about the optical qualities or depth of the water body.

For academic/non-commercial collaborations, questions about the algorithm, or if you would like to be notified when Sea-thru is available, please email us at:

Sea-thru is protected by a registered patent owned by Carmel Ltd the Economic Co. of the Haifa University and its subsidiary SeaErra.

Any use of this technology or other material presented here is prohibited without a prior written approval by the owners.

For more information, please contact

Video credit: Dr. Alex Jordan (Lake Tanganyika, Zambia)