Contrast and lightness measures are used to first classify the image as being one of non-turbid and turbid. The IPS-LCD has a superior contrast ratio at the surface-facing angle and tilt angles and undergoes a minimal color change with viewing angles in a black state, thereby providing a wider viewing angle. The device also includes at least one float portion to position the device at a desired depth within a body of water. A map may be used to locate each set of intersection bits that encode the same input bit by multiple unsolved component codes. The link current provides current to a load, such as a lighting system that includes light emitting diodes. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.