Pixel can be meaning picture element. Index as (x,y) where x is column and y is row of an image. it represent the smallest element in a digital image and contains numerical value as intensity of image information. The information of pixel contents can vary depend on type of the image.
There are some type of image:
- Colour/greyscale image.
- Infrared image. Infrared image is visual spectrum of small part of the electromagnetic spectrum.
- Medical Image.
- Radar/sonar imaging.
- 3D imaging
- scientific imaging.
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