Positive Process definition of Positive Process in the Free Online Encyclopedia.

Positive Process

the combination of operations by which a positive image is obtained from a negative. The positive process consists of exposing the material, such as photographic paper, a positive film, or diapositive plate, and processing it with photographic chemicals. The emulsions used in this process, whether for motion-picture or still photography, are less sensitive to light and more contrasty than those of negatives; moreover, the emulsions of black-and-white materials usually have not been color-sensitized.

Prints may be produced from a negative by either the contact or the projection method. In contact printing, the emulsion of the positive material is tightly pressed against the emulsion of the negative and is exposed to light passing through the negative. Therefore, the positive image produced is the same size as the negative image and possesses the sharpness and resolution of small details inherent in the negative. The printing is done in printing frames, printing machines, and motion-picture film printers.

Projection printing consists of projecting a negative image by a lens onto the emulsion of a positive material located at some distance from the negative. This makes it possible to vary widely the size of the image, to print only part of the negative, to eliminate distortions in perspective, and to make photomontages, combining several images in one positive. Projection printing uses enlargers of various designs. As far as the actual physical and chemical processes involved are concerned, the processing of exposed positive materials does not differ from the processing of negative materials. Positives are sometimes additionally subjected to toning.

A positive image with colors close to the natural colors of the photographed object is obtained by printing from color negatives onto multilayer color positive materials. A feature of color printing is the use of corrective filters to eliminate color distortions.

REFERENCES

Iashtol’d-Govorko, V. A. Pechat’ fotosnimkov. Moscow, 1967.
Spravochnik fotoliubitelia, 2nd ed. Editors in chief, E. A. Iofis and V. G. Pell’. Moscow, 1964.
Gorbatov, V. A. and E. D. Tamitskii. Tsvetnaia fotografiia. Moscow, 1972.

L. D. PERVOVA

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No references found	Gill Eshelby, head of the County Durham Youth Offending Service, added: "Making this film has been a really positive process for the group, from which they have learned a great deal. Film puts the focus on young offenders; Teenagers tell of bad ... by The Journal (Newcastle, England) In our opinion, consolidation is a positive process for their minorityshareholders, as the newly-established company will have a stronger market positionand more liquid shares. FINAM - Daily Market Watch - Dec 9, 2010 by Russian Banks and Brokers Reports I would suggest that the process of ageing being primarily psychological as explained by the fear of death, it is only caused by a negative force but it is not inherently negative and can become a positive process. The Psychology of Ageing by Saberi Roy / Social sciences, general community	positive heat supply positive image positive integer positive interference positive ion positive landform Positive Law positive lens positive linear functional Positive Logic positive meniscus lens positive mirror positive modulation positive mold positive motion positive movement positive number positive ore Positive Organ positive part positive pedal curve positive phase sequence positive photokinesis positive phototaxis positive pole Positive Process positive ray positive real function Positive Relief form positive semidefinite positive series positive shoreline positive sign positive skewness positive temperature coefficient positive terminal positive transfer positive transmission positive vetting positive with respect to a signed measure positive zero positive-displacement positive-displacement compressor Positive-Displacement Hydraulic Drive positive-displacement meter positive-displacement pump positive-grid oscillator positive-ion sheath positive-phase-sequence relay Positivism Positron	Positive politeness Positive Position Feedback Positive Position Locating Information Positive potential Positive potential Positive predictive value Positive predictive value Positive predictive value Positive Predictive Value of Malignancy positive prescription positive prescription positive prescription positive prescription positive prescription Positive pressure Positive pressure Positive pressure Positive pressure Positive pressure Positive Pressure Air-Line Respirators positive pressure breathing unit Positive Pressure Chilled Circulating Water Positive Pressure Mask Ventilation Positive Pressure Relief Valve Positive Pressure Self-Contained Breathing Apparatus Positive pressure ventilation Positive pressure ventilation Positive pressure ventilation Positive pressure ventilation Positive pressure ventilation Positive Process Positive Psychology Center Positive Psychology News Daily Positive punishment Positive punishment Positive punishment Positive punishment Positive Puppy Training Works Positive Quadrant Dependence Positive quantity Positive Quantum Energy Positive ray positive real function Positive Reassuring Action Yielding Eternal Results Positive Refractive Index Positive Regulatory Domain I-Binding Factor 1 Positive reinforcement Positive reinforcement Positive reinforcement Positive reinforcement Positive Reinforcement Training positive reinforcer positive reinforcer positive reinforcer positive reinforcer positive reinforcing stimulus Positive relationship Positive Relief form Positive Research Center Positive resist Positive Result Likelihood Ratio

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Gill Eshelby, head of the County Durham Youth Offending Service, added: "Making this film has been a really positive process for the group, from which they have learned a great deal.

Film puts the focus on young offenders; Teenagers tell of bad ... by The Journal (Newcastle, England)

In our opinion, consolidation is a positive process for their minorityshareholders, as the newly-established company will have a stronger market positionand more liquid shares.

FINAM - Daily Market Watch - Dec 9, 2010 by Russian Banks and Brokers Reports

I would suggest that the process of ageing being primarily psychological as explained by the fear of death, it is only caused by a negative force but it is not inherently negative and can become a positive process.

The Psychology of Ageing by Saberi Roy / Social sciences, general community

positive heat supply

positive image

positive integer

positive interference

positive linear functional

Positive Logic

positive meniscus lens