grainy definition of grainy in the Free Online Encyclopedia.

graininess [′grān·ē·nəs]

(graphic arts)

A mottled effect in film caused by clumping of the silver particles.

Graininess

the inhomogeneity of a uniformly exposed and developed photographic layer observed in an enlarged photographic image. At high magnification the form of the primary blackening structure (microgranular structure) may be seen; it consists of individual silver “grains” which are produced by the reducing action of the developer on the microscopic crystals of silver halide in the photographic material. The size of the grains is usually greater than the size of the silver halide crystals from which they are formed, reaching several microns (μ). The secondary blackening structure, which itself is called graininess (also macrograininess, granularity, or photographic noise), is observed at low magnifications (5–30 ×). It is produced by the superposition of the projections of individual silver grains located at different depths of the very thin (7–26 μ) developed layer, by the combined reduction of several randomly adhering microscopic crystals of silver halide, and sometimes by the accretion of silver grains in the process of their formation during developing.

Graininess lowers the quality of a photographic image by reducing the aesthetic impression of still pictures produced by printing from a small negative and in motion-picture images on a screen by making it more difficult (or even impossible) to recognize fine details in complicated pictures, particularly technical photographs, and by complicating the microphotometric processing of spectrograms, astronomical photographs, and other kinds of special photographic images. Graininess is primarily determined by the size of the microscopic silver halide crystals; it increases sharply with the degree of exposure and development of the layer. However, it usually is not highly dependent on the composition of the developer. Photographic images produced on low-sensitivity materials with the smallest possible exposures and a low degree of development are the least grainy.

IU. N. GOROKHOVSKII

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No references found	All we knew of him was one grainy photo from 1994 when he was chucked out of Moscow - and even then his face was covered up with a hat. Secrets of 'C' RecordView by Daily Record (Glasgow, Scotland) This creates more grainy pictures, just like in conventional photography, but because of different reasons. A photographer's glossary by Ashbrook, Stan; Drury, Fred / PSA Journal THIS grainy CCTV picture shows killer Christopher Foster in his final moments, an inquest heard yesterday. LAST MOMENTS OF BLAZE KILLER by The Mirror (London, England)	Grain Moistener Grain Mortar Grain Moths grain neutral spirits Grain Pentatomids Grain Scale Grain Sector Grain Separator grain size grain slope grain sorghum grain spacing Grain Thrower Grain-cleaning Machine Grain-harvesting Combine grainer process grainer salt Grainger Grainger County Grainger, Percy Grainger, Percy Aldridge Graininess graining Gráinne grainstone grainy Graivoron Grakan Tert Grakov, Boris Grakov, Boris Nikolaevich gram Gram Atom Gram determinant Gram Equivalent Gram Molecule gram stain Gram's Method Gram's stain Gram's theorem gram-atomic weight gram-calorie gram-centimeter gram-equivalent weight Gram-Force gram-molecular volume gram-molecular weight gram-negative gram-negative diplococci gram-positive gram-rad gram-roentgen	graining graining graining graining graining grainless grainless grainless grainless Grainne Gráinne grains grains grains grains grains Grains and Oilseeds Payment Program Grains Council of Australia Grains Export Reimbursement Scheme Grains Industry Training Network grains of paradise Grains of Selim Grains Per Inch Grains per Pound Grains Per Standard Cubic Feet Grains Production Enhancement Program Grains Research and Development Corporation Grains Research Foundation Limited Grains Trade Convention grainstone grainy grainy club grainy club mushrooms Grainyhead Grainyhead-Like Graip Graith Graivoron GRAJ Grajdanskaya Oborona GRAK Grakan Tert Grakle Grakle noseband Grakle noseband Grakle noseband Grakov, Boris Grakov, Boris Nikolaevich Gral Grallae Grallatores Grallatorial Grallic Gralline Gralloch gralloched gralloching

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No references found

All we knew of him was one grainy photo from 1994 when he was chucked out of Moscow - and even then his face was covered up with a hat.

Secrets of 'C' RecordView by Daily Record (Glasgow, Scotland)

This creates more grainy pictures, just like in conventional photography, but because of different reasons.

A photographer's glossary by Ashbrook, Stan; Drury, Fred / PSA Journal

THIS grainy CCTV picture shows killer Christopher Foster in his final moments, an inquest heard yesterday.

LAST MOMENTS OF BLAZE KILLER by The Mirror (London, England)

Graininess (redirected from grainy)

Graininess
(redirected from grainy)