Digital imaging
Digital Imaging
Digital imaging or digital image acquisition is the creation of digital images, typically from a physical scene. The term is often assumed to imply or include the processing, compression, storage, printing, and display of such images.
Pronunciation
Digital Imaging: /ˈdɪdʒɪtəl ˈɪmɪdʒɪŋ/
Etymology
The term "digital imaging" comes from the words "digital", which refers to data in the form of digits or discrete values, and "imaging", which refers to the creation of a representation of an object or scene.
Related Terms
- Digital Image Processing: The use of computer algorithms to perform image processing on digital images.
- Image Acquisition: The action or process of recording images of objects or areas with sufficient detail.
- Image Compression: The application of data compression on digital images, to reduce their cost for storage or transmission.
- Image Storage: The storing of images by electronic means.
- Image Display: The output of images or image sequences on a physical surface.
- Image Printing: The process of producing a hard copy of a digital image.
Digital Imaging
Digital imaging is a process where an image is digitally captured or scanned as a set of data which can be stored in a computer. This data can then be manipulated to adjust the image or to extract useful information from it. Digital imaging can be classified into two types: analog and digital.
Analog imaging involves the conversion of continuous data into digital form. This is done by scanning the image or by using an analog-to-digital converter. On the other hand, digital imaging involves the direct capture of images in a digital format through a digital camera or similar device.
Digital imaging has a wide range of applications, including photography, medicine, astronomy, and industrial imaging. In medicine, for example, digital imaging is used in various imaging techniques such as X-ray, ultrasound, and magnetic resonance imaging (MRI).
Digital imaging has several advantages over traditional analog imaging. These include the ability to easily store, copy, and transmit images; the ability to manipulate an image to enhance certain features or to extract information; and the ability to use computers to automate the imaging process and to integrate images with other data.
External links
- Medical encyclopedia article on Digital imaging
- Wikipedia's article - Digital imaging
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