Dissolve (filmmaking)  

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Train wreck at Montparnasse (October 22, 1895) by Studio Lévy and Sons.
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Train wreck at Montparnasse (October 22, 1895) by Studio Lévy and Sons.

In the post-production process of film editing and video editing, a dissolve is a gradual transition from one image to another. The terms fade-out and fade-in are used to describe a transition to and from a blank image. This is in contrast to a cut where there is no such transition. A dissolve overlaps two shots for the duration of the effect, usually at the end of one scene and the beginning of the next, but may be used in montage sequences also.

In film, this effect is usually created with an optical printer by controlled double exposure from frame to frame. In linear video editing or a live television production, the same effect is created by interpolating voltages of the video signal. In non-linear video editing, a dissolve is done using software, by interpolating gradually between the RGB values of each pixel of the image. The audio track optionally cross-fades between the soundtracks.

The cut and the dissolve are used differently. A camera cut changes the perspective from which a scene is portrayed. It is as if the viewer suddenly and instantly moved to a different place, and could see the scene from another angle.

Fades and dissolves typically have a duration of 1 to 2 seconds (24-48 frames), though this may vary according to the preference of the director and editor. Short dissolves (6-12 frames) may be used to soften obvious hard cuts which may startle the viewer, or jump cuts. A Place in the Sun is noted for its exceptionally long fades and dissolves.

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Unless indicated otherwise, the text in this article is either based on Wikipedia article "Dissolve (filmmaking)" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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