positive


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia.

positive:

see photographic processingphotographic processing,
set of procedures by which the latent, or invisible, image produced when a photographic film is exposed to light is made into a permanent visible image.
..... Click the link for more information.
.

Positive

 

a photographic image in which the relative distribution of brightness, in black-and-white photography, or colors, in color photography, corresponds to the distribution in the object photographed. Thus, a positive is opposed to a negative, in which there is an inverse distribution of brightness or a registration of the image in complementary colors. Two types of positives are distinguished—those produced on photographic materials with an opaque support, such as paper or ceramic material, and those produced on photographic materials with a transparent support, such as glass or film; the second type comprises diapositives and motion-picture film positives intended to be viewed against a light source or to be projected onto a screen.

Positives are obtained by contact or projection printing onto positive photographic materials—the positive process. With this process, a large number of positives can be made from a single negative; with projection printing, positives can be made any size. Positives produced as a single copy, such as amateur motion-picture films and slides, are made on reversal materials by reversal process. In color cinematography, in addition to the negative-positive and reversal processes, the imbibition process is used, which produces positives from three color-separation black-and-white negatives.

positive

[′päz·əd·iv]
(electricity)
Having fewer electrons than normal, and hence having ability to attract electrons.
(graphic arts)
Having the same rendition of light and shade as in the original scene.
(mathematics)
Having value greater than zero.
References in periodicals archive ?
Listeners can subscribe to "The Positive Phil Show" through iTunes and stream the show for free at www.
5 : thinking of good qualities or possibilities : optimistic <a positive attitude>
Those who displayed generally positive outlooks, including feelings of liveliness, cheerfulness, and being at ease, were least likely to develop cold symptoms.
Make a list of 10 positive things you can say about yourself and repeat them every morning.
They also found that females had slightly more positive attitudes than did males, and students who had a friend or classmate with a disability had more positive attitudes than those students without direct contact with students with disabilities.
Skin biopsy specimens from 8 patients with ATBF, from 1999 to 2004, obtained from black crusts corresponding to inoculation eschars, were positive for R.
Every underwriter has had the uncomfortable feeling that some who deny tobacco/nicotine use but nevertheless test positive for cotinine are telling the truth.
Reflecting led me to develop one over-arching principle of behavior management that held true throughout the year, positive reinforcement.
The laws, according to a review done by scholars at the Center for AIDS Prevention Studies at University of California San Francisco, largely require simply that the positive partner in a sex act was aware of his or her status and didn't reveal it.
Corporate demand should pick up, as it already has to some extent on a national scale and in other parts of Fairfield County, resulting in a generally positive outcome.
However, they also have a positive influence on wet-end additives.
When asked if positive test results should be made public, pitcher Jarrod Washburn did not hesitate.