positive


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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.
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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 classic literature ?
Esmeralda was positive that it was none other than an angel of the Lord, sent down especially to watch over them.
She saw it circle lower above the palace until she was positive that it but hovered in preparation for a landing.
Maia, as he calls it, the empty "Absolute" of the Buddhist, the "Infinite," the "All," of which those German metaphysicians he loved only too well have had so much to say: this was for ever to give the go-by to all positive, finite, limited interests whatever.
But, with all his care, night found him at a point where he was positive that he was on the wrong trail entirely.
The girl for her part could not put from her mind the disappointment she had felt when she discovered that her rescuer was von Horn, and not the handsome young giant whom she had been positive was in close pursuit of her abductors.
And now, what do you know of matter, according to your own positive science?
Her Ladyship instantly objected, in the most positive terms.
But, even in this case, I must make it a positive condition that my name shall not be mentioned.
I had read too much positive science and lived too much positive life.
In this, therefore, I think we are agreed; but that this honour can be said to be founded on religion, to which it is antecedent, if by religion be meant any positive law--"
1) The theory which we have now to consider regards belief as belonging to every idea which is entertained, except in so far as some positive counteracting force interferes.
I shall go on in the same way, losing my temper with Ivan the coachman, falling into angry discussions, expressing my opinions tactlessly; there will be still the same wall between the holy of holies of my soul and other people, even my wife; I shall still go on scolding her for my own terror, and being remorseful for it; I shall still be as unable to understand with my reason why I pray, and I shall still go on praying; but my life now, my whole life apart from anything that can happen to me, every minute of it is no more meaningless, as it was before, but it has the positive meaning of goodness, which I have the power to put into it.