Photography is the art, science, and practice of creating pictures by recording radiation on a radiation-sensitive medium, such as a photographic film, or electronic image sensors. Photography uses foremost radiation in the UV, visible and near-IR spectrum. For common purposes the term light is used instead of radiation.
Light reflected or emitted from objects form a real image on a light sensitive area (film or plate) or a FPA pixel array sensor by means of a pin hole or lens in a camera during a timed exposure. The result on film or plate is a latent image, which is developed into a visual image (negative or diapositive). An image on a paper base is known as a print. The result on an FPA pixel array sensor is an electrical charge at each pixel which is electronically processed and stored in a computer (raster)-image file for subsequent display or processing. Photography has many uses for business, science, manufacturing (f.i. Photolithography), art, and recreational purposes.
Light reflected or emitted from objects form a real image on a light sensitive area (film or plate) or a FPA pixel array sensor by means of a pin hole or lens in a camera during a timed exposure. The result on film or plate is a latent image, which is developed into a visual image (negative or diapositive). An image on a paper base is known as a print. The result on an FPA pixel array sensor is an electrical charge at each pixel which is electronically processed and stored in a computer (raster)-image file for subsequent display or processing. Photography has many uses for business, science, manufacturing (f.i. Photolithography), art, and recreational purposes.
La photographie est l'art, la science et la pratique de la création d'images par le rayonnement d'enregistrement sur un support sensible aux radiations, comme une pellicule photographique, ou des capteurs d'image électronique. Photographie utilise le rayonnement avant tout dans l'UV, spectre visible et proche infrarouge. Pour des raisons communes à la lumière terme est utilisé au lieu de rayonnement. Lumière réfléchie ou émise par les objets forment une image réelle sur une surface sensible à la lumière (film ou plaque) ou un capteur FPA matrice de pixels au moyen d'un trou d'épingle ou la lentille de la caméra lors de une exposition minutée. Le résultat sur le film ou la plaque est une image latente, qui est développé en une image visuelle (négatif ou diapositive). Une image sur un support papier est connue comme une impression. Le résultat sur un capteur FPA matrice de pixels est une charge électrique à chaque pixel qui est traitée électroniquement et stockées dans un ordinateur (raster)-fichier image pour un affichage ultérieur ou de transformation. La photographie a beaucoup d'utilisations pour les affaires, la science, de la fabrication (photolithographie fi), l'art, et à des fins récréatives.
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