Artificial space orbiting satellites have a variety of functions, such as emitting telecommunications signals, collecting information for strategic purposes, or predicting weather patterns. Anyway, satellites collect images that allow us to analyze all kinds of reality . Satellite Image
Speaking of images, one should not confuse what is a satellite image of a photograph. An image is any graphical representation that identifies and records electromagnetic energy , just as photography depends on light. Therefore, a photograph is a particular type of image.
As we know today, satellite imagery began to be used in the late 1950s, when satellite platforms replaced aircraft electronic sensors. In this sense, there was a revolution in the world of meteorology, in the telecommunications sector and in military strategy.
Technical Aspects of Satellite Images
Image pixels have a fixed size and correspond to a specific area of terrain. Satellite Image
Satellite image sensors detect various pieces of information within the wavelength category . Normally, to visualize an image, digital bands with the three primary colors are used: red, green and blue.
The Advantages of Satellite Imagery
In the first place , it is images that can be obtained quickly and immediately. In fact, it can currently be done instantly over the internet .
They allow you to get to know large areas at a low cost
It is possible to have access to very remote places, as borders disappear from space and this allows it to be possible to capture any place on the planet, however remote it may be. Satellite Image
The information of the images can be combined with other information systems, such as GIS or Geographic Information Systems.
From the point of view of human curiosity, these images allow us a virtual movement as if we were really in a real place.
Despite the advantages of this type of image, it should be taken into account that the image obtained presents a series of interferences that disturb the information. Satellite Image