Requires the rarely available NOAA APT sensor 1 and 2 images (seen during the test phase after satellite launch). The sea surface temperature may be incorrect due to the presence of thin or small clouds in the pixel evaluated, or from noise in the signal. No attempt is made to distinguish cloud or land from sea.
This is less accurate than the sea surface temperature derived from sensor 3-4 sea enhancement, but is available when the 3-4 image is not available. Uses the sea surface temperature derived from just the sensor 4 image to colour the image. The temperature displayed on the status line will use the sea surface temperature algorithm to calculate the temperature only when this enhancement is used.Ĭreates a false colour image from NOAA APT images based on sea surface temperature. The sea surface temperature calibration requires knowledge of the specific NOAA satellite.
Uses the sea surface temperature derived from the sensor 3 and 4 images to colour the image. Bright areas are completely unsaturated in this model.Ĭreates a false colour image from NOAA APT images based on sea surface temperature. The HVC colour model attempts to ensure that different colours at the same value will appear to the eye to be the same brightness and the spacing between colours representing each degree will appear to the eye to be similar. Uses the temperature derived from the sensor 4 image to select the hue and the brightness from the visible (sensor 2) image (or the sensor 4 image if the Use other sensor option is selected) to select the value and chroma. Same as HVCT false-colour, but high cold cloud tops are coloured the same as the NO enhancement to give an approximate indication of the probability and intensity of precipitation.Ĭreates a false colour image from NOAA APT images based on temperature using the HVC colour model. Similar to HVC (below), but with blue water and with colours more indicative of land temperatures. Same as MSA multispectral analysis, but creates a 3-D anaglyph image (must be viewed with red/blue glasses). Same as MSA multispectral analysis, but high cold cloud tops are coloured the same as the NO enhancement to give an approximate indication of the probability and intensity of precipitation. This enhancement does not use a palette nor is it temperature normalised. Produces a vivid false-coloured image as a result. Uses a NOAA channel 2-4 image and determines which regions are most likely to be cloud, land, or sea based on an analysis of the two images. High clouds appear white, lower clouds gray or land/sea coloured, clouds generally appear lighter, but distinguishing between land/sea and low cloud may be difficult. Disables gamma, sharpening, rotation, despeckling, and other enhancements.Ĭolours the NOAA sensor 4 IR image using a map to colour the sea blue and land green. No attempt is made to temperature normalise IR images.
Typically used to output images for further processing by other software Pristine images are unenhanced, but unlike raw images have been normalised to produce images which represent, as best as the software is able to, the original digital data. Produce pristine output (best representation of original digital data). Produce a normal image, using Gamma, Sharpening, Despeckling, etc settings. Improved automation, new enhancements, a wider variety of options, projection transformations and improved quality images from communications receivers and scanners are available by registering the software.WxtoImg, the program I mainly use for the polar satellites, knows a lot of enhancements. WXtoImg comes in a basic version that provides a large range of features. WXtoImg makes use of the 16-bit sampling capabilities of soundcards to provide better decoding than is possible with expensive purpose-designed hardware decoders. Mercator), text overlays, automated web page creation, temperature display, GPS interfacing, wide-area composite image creation and computer control for many weather satellite receivers, communications receivers, and scanners. WXtoImg supports real-time decoding, map overlays, advanced colour enhancements, 3-D images, animations, multi-pass images, projection transformation (e.g.
The software supports recording, decoding, editing, and viewing on most versions of Windows, Linux, and Mac OS X. WXtoImg is a fully automated APT and WEFAX weather satellite (WXsat) decoder.