This is due to the fact that all satellite images are actually divided into squares, measuring 256 by 256 pixels, which are called tiles, for faster map downloads.Īerial images of an area are also used to create satellite maps. Downloading any area on the satellite map, you have probably noticed that the image appears in squares. Images received are reduced in size for presentation to the user of the form of the satellite images with different zoom levels.Īt the minimum acceptable chart scale the user can see the original satellite image, and when you zoom, the image will be already presented in a compressed form,Īnd together with adjacent images, which will also be presented in a reduced form. Once an image is received, it is placed in a satellite maps database, indicating its location on the map and its collocation with the neighbouring satellite images. If the quality of the image received from the satellite meets the requirements, the shooting stops, otherwise a shooting procedure of an area will continueĪs soon as the satellite will fly in its orbit above the selected point on the Earth's surface.Īdverse factors for the satellite shooting of the Earth may be as follows: a heavy cloud cover, snow-covered land, peculiar area landscape, darkness hours or atmospheric features. Then, the images are transmitted and processed on the Earth.
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