‘Sea-Thru’ Allows Scientists to Accurately Recalibrate the True Colors of Sea Life

If you were ever curious about what underwater life looked like without the aquamarine tint you see in some photos and video.

via COLOSSAL

Two researchers at the University of Haifa have developed Sea-Thru, an algorithmic method for color-correcting underwater images. The tool allows scientists—and laypeople—to understand and contextualize the “true” colors of aquatic phenomena like fish, coral, and anemones. Sea-Thru was developed by Derya Akkaynak and Tali Treibitz and is a more accurate re-reading of colors, rather than editing tones artificially in Photoshop.

In the paper’s abstract, the duo explain that the way colors come through underwater is not uniform (which is why the aforementioned Photoshop doctoring isn’t accurate). Rather, the distance from the lens and the reflectivity of the captured object determines how its colors appear. So, the way sand appears is differently modulated by the water than, say the scales on a fish passing above the sand. Sea-Thru uses an algorithm to accurately and efficiently adjust images taken underwater.

Read more.


Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — Chip inventories rise as demand falls

Wearables — Go insane with a membrane (button or keypad)

Electronics — Shift away from basic arithmetic

Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 8.0 RC 1 Out, Board Guides, and Much More! #CircuitPython #Python @ThePSF @micropython @Raspberry_Pi

Adafruit IoT Monthly — Cat Doorbell, Deep Algae Bloom Detector, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 02/01/23 Featuring Adafruit Floppy FeatherWing with 34-Pin IDC Connector!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.