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.
When using this enhancement, the specific NOAA satellite should be chosen from the Satellite menu. The sea surface temperature calibration includes knowledge of the specific NOAA satellite. 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. 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.
Operational only if the software has been upgraded. 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.
There are several options which affect colouring of these images in Image and Movie Options. 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. The other image is not shown.Ĭolours the NOAA sensor 4 IR image using a map to colour the sea blue and land green. The other image is not shown.Ĭontrast enhancement is performed only on the NOAA channel B image as per the Contrast setting in the Options menu. Black and white Creates a black and white image, setting darker pixels to black and lighter pixels to white.Ĭontrast enhancement is performed only on the NOAA channel A image as per the Contrast setting in the Options menu. Disables gamma, sharpening, rotation, despeckling, and other enhancements.Ĭontrast enhancement is performed as per the Contrast setting in the Options menu. 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. Note, that some of the images processed with special methods, which allows to see the 3-D picture of ground and clouds, so if you want to see correct image you have to use special glasses, description of image contains description of glasses too. Description of image contains method of decode RAW-picture. So I propose you select image most informative from synoptic-professional point of view, which I will place to site in addition or instead of images which I placed before.īelow I place images which I got as RAW-file and then process by different methods. May be my method was wrong, may be I lost important information, choosing just attractive picture. What method is the best? To me - I just choose the most attractive picture and placed it to site. WXtoImg program allows decode the satellite image by different methods.