The basic digital image is composed of a two‐dimensional array of numbers. Each number in the array represents a value of the smallest visual element, a pixel. The indexed location of the pixel value in the array corresponds to the X and Y locations of the pixel within the image, as measured from the top‐left corner. The values of a pixel in an X and a Y location in the digital grayscale image represent the brightness of the pixel in a range from black to white. The most commonly used image format for finding the existence of the object, location, and size information is binary image. Digital color images from digital cameras are usually described by three color values: R (red), G (green), and B (blue). Imaging acquisition hardware requires a camera, lens, and lighting source. Software is also needed to display and extract information from images.
Basics of Machine Vision
2014-12-08
16 pages
Article/Chapter (Book)
Electronic Resource
English
Springer Verlag | 2017
|AIAA | 2015
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|Wiley | 2012
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