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Digital photograph restoration is the practice of restoring the appearance of a digital copy of a physical photograph that has been damaged by natural, man-made, or environmental causes, or affected by age or neglect. Digital photograph restoration uses image editing techniques to remove undesired visible features, such as dirt, scratches, or ...
Image resolution. Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved.
1975 – Bryce Bayer of Kodak develops the Bayer filter mosaic pattern for CCD color image sensors. 1976 – Steadicam becomes available. 1986 – Kodak scientists invent the world's first megapixel sensor. 1987. Canon releases the first camera for its fully electronic autofocus EF lens mount, the EOS 650 [20]
View from the Window at Le Gras 1826 or 1827, believed to be the earliest surviving camera photograph. [1] Original (left) and colorized reoriented enhancement (right).. The history of photography began with the discovery of two critical principles: The first is camera obscura image projection, the second is the discovery that some substances are visibly altered by exposure to light [2].
Image fidelity refers to the ability of a process to render a given copy in a perceptually similar way to the original (without distortion or information loss), i.e., through a digitization or conversion process from analog media to digital image. The process of determining the level of accuracy is called Image Quality Assessment (IQA).
Basics of image editing. Raster images are stored in a computer in the form of a grid of picture elements, or pixels. These pixels contain the image's color and brightness information. Image editors can change the pixels to enhance the image in many ways. The pixels can be changed as a group, or individually, by the sophisticated algorithms ...
Snapshot of a tourist taking a selfie. A snapshot is a photograph that is "shot" spontaneously and quickly, most often without artistic or journalistic intent and usually made with a relatively cheap and compact camera. Common snapshot subjects include the events of everyday life, often portraying family members, friends, pets, children playing ...
Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot, [1] using paper [2] coated with silver iodide. Paper texture effects in calotype photography limit the ability of this early process to record low contrast details and textures. The term calotype comes from the Ancient Greek καλός (kalos ...