sharpness+effects

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• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

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• Unsharp masking — is an image manipulation technique now familiar to many users of digital image processing software, but it seems to have been first used in Germany in the 1930s as a way of increasing the acutance, or apparent sharpness, of photographic images.… …   Wikipedia

• F-number — In optics, the f number (sometimes called focal ratio, f ratio, or relative aperture [Smith, Warren Modern Lens Design 2005 McGraw Hill] ) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; …   Wikipedia

• Image Quality — is a characteristic of an image that measures the perceived image degradation (typically, compared to an ideal or perfect image). Imaging systems may introduce some amounts of distortion or artifacts in the signal, so the quality assessment is an …   Wikipedia

• photography, history of — Introduction       method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …   Universalium

• Miniature faking — Digitally blurred miniature fake of Jodhpur Original p …   Wikipedia

• comedy — comedial /keuh mee dee euhl/, adj. /kom i dee/, n., pl. comedies. 1. a play, movie, etc., of light and humorous character with a happy or cheerful ending; a dramatic work in which the central motif is the triumph over adverse circumstance,… …   Universalium