WXtoImg
software to decode APT and WEFAX signals from weather satellites

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WXtoImg: Comparison of Enhancements

The following Standard images (decoded by WXtoImg) show the images as transmitted by the NOAA polar orbiting weather satellites (although maps have been overlayed on the images to improve interpretation). The NOAA satellites transmit two images from different sensors. Typically sensors 2 (near infrared) and 4 (thermal infrared) during the day, and sensors 3 (mid/thermal infrared) and 4 (thermal infrared) during the night. Sensors 1 (visible) and 2 (near infrared) are transmitted only for a short time after the launch of a new satellite.

Standard Image (NOAA sensors 3/3B and 4)


Standard Image (NOAA sensors 1 and 2)


Standard Image (NOAA sensors 2 and 4)

The following enhancements are available in the WXtoImg program. Not all enhancements apply to images containing any two sensors (for instance the MSA enhancement requires a sensor 2-4 image). Click on any image to see a larger image. Note that the Anaglyph enhancement is a 3D image requiring special red/blue glasses to view.


ANAGLYPH enhancement


CANAGLYPH enhancement


MCIR-ANAGLYPH enhancement


MSA-ANAGLYPH enhancement


SEA enhancement


VEG enhancement


BD enhancement


CC enhancement


CLASS enhancement


EC enhancement


HE enhancement


HF enhancement


HISTEQA enhancement


HISTEQB enhancement


HVC enhancement


HVCT enhancement


INVERT enhancement


JF enhancement


JJ enhancement


MB enhancement


MCIR-PRECIP enhancement


MCIR enhancement


MD enhancement


MSA-PRECIP enhancement


MSA enhancement


NO enhancement


TA enhancement


ZA enhancement

The ZA, MB, MD, BD, CC, EC, HE, HF, JF, JJ, TA and NO enhancement curves were provided by NOAA.


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