Welcome

Anti Essays offers essay examples to help students with their essay writing.

Sign Up

Remote Sensing Essay

Open Document

Below is an essay on "Remote Sensing" from Anti Essays, your source for research papers, essays, and term paper examples.

GISdevelopment.net ---> Tutorials


Image Processing and Analysis


Introduction
Image Processing and Analysis can be defined as the "act of examining images for the purpose of identifying objects and judging their significance" Image analyst study the remotely sensed data and attempt through logical process in detecting, identifying, classifying, measuring and evaluating the significance of physical and cultural objects, their patterns and spatial relationship.

Digital Data
In a most generalized way, a digital image is an array of numbers depicting spatial distribution of a certain field parameters (such as reflectivity of EM radiation, emissivity, temperature or some geophysical or topographical elevation. Digital image consists of discrete picture elements called pixels. Associated with each pixel is a number represented as DN (Digital Number), that depicts the average radiance of relatively small area within a scene. The range of DN values being normally 0 to 255. The size of this area effects the reproduction of details within the scene. As the pixel size is reduced more scene detail is preserved in digital representation.

Remote sensing images are recorded in digital forms and then processed by the computers to produce images for interpretation purposes. Images are available in two forms - photographic film form and digital form. Variations in the scene characteristics are represented as variations in brightness on photographic films. A particular part of scene reflecting more energy will appear bright while a different part of the same scene that reflecting less energy will appear black. Digital image consists of discrete picture elements called pixels. Associated with each pixel is a number represented as DN (Digital Number), that depicts the average radiance of relatively small area within a scene. The size of this area effects the reproduction of details within the scene. As the pixel size is reduced more scene detail is preserved in digital...

Show More


Citations

MLA Citation

"Remote Sensing". Anti Essays. 13 Dec. 2018

<http://parimatch-stavka7.com/free-essays/Remote-Sensing-393537.html>

APA Citation

Remote Sensing. Anti Essays. Retrieved December 13, 2018, from the World Wide Web: http://parimatch-stavka7.com/free-essays/Remote-Sensing-393537.html


mobilismno1 | Ray Donovan S06e02 | The X Factor UK S13E06 WEB x264-spamTV [eztv]