IMAGE ENHANCEMENT Meaning and
Definition
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Image enhancement refers to the digital processing techniques employed to improve the quality, clarity, or visual appearance of an image. It involves various algorithms and methods that aim to make images more visually appealing, informative, or easier to interpret by enhancing their details, contrast, colors, or other visual characteristics.
The primary goal of image enhancement is to bring out hidden or faded information in an image that might have been impacted by limitations in capturing devices or environmental conditions. This can include reducing noise, sharpening blurred edges, adjusting brightness and contrast levels, improving color balance, or removing unwanted artifacts. These techniques are applied to both digital images originally captured using digital cameras or scanners, as well as analog images that require conversion to digital format.
Image enhancement can be carried out through manual adjustments using image editing software or through automated algorithms. This process often involves modifying pixel intensities or applying filters and transforms to enhance specific aspects of an image. The increased visual quality achieved by image enhancement techniques can have a wide range of applications, including medical imaging, surveillance and security systems, satellite imagery analysis, computer vision, and digital photography, among others.
In summary, image enhancement is a set of digital processing techniques aimed at improving the quality, clarity, and visual characteristics of images by enhancing their details, contrast, colors, or other visual elements.
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Etymology of IMAGE ENHANCEMENT
The etymology of the term "image enhancement" can be understood by analyzing the origins of its components.
1. Image: The word "image" has its roots in Latin. It comes from the Latin noun "imago", meaning "copy, likeness, or picture". This Latin term evolved from the verb "imitari", which translates to "to copy or represent". Over time, the word "imago" was borrowed into Middle English and subsequently transformed into "image" as we know it today.
2. Enhancement: The word "enhancement" is derived from the verb "enhance". This term can be traced back to Middle English and shares its roots with the Old French verb "enhaucier", meaning "to raise or lift up". The French word originated from the Latin verb "altiare" (also "excelsare"), which means "to make high or higher".
