Dissolve (film)
From Biocrawler, the free encyclopedia.
In film editing, a dissolve is a gradual transition from one image to another. In film this effect is created by controlled double exposure from frame to frame; transiting from the end of one clip to the beginning of another.
In video editing, the effect is created by interpolating voltages of the video signal.
In non-linear video editing, a dissolve is done in software, by interpolating gradually between the RGB values of each pixel of the image.
The cut and the dissolve are used differently. A camera cut changes the perspective from which a scene is portrayed. It's as if the viewer suddenly and instantly moved to a different place, and could see the scene from another angle. Often this is done without missing any action (a seamless cut).
A dissolve can be used to cover up sloppy camera work or unexplainable gaps in the action. When done quickly, it can be nearly unnoticeable. When abused, it can be so hard to detect as to be effective in giving a false impression. (An unscrupulous director could quote someone out of context merely by cutting out a few intervening words or splicing later remarks in front of earlier remarks.)
Usually, the purpose is more constructive, and it's done slowly enough to portray the passage of time. As such, it replaces the old silent film convention of showing a slide with a caption like, "Meanwhile, back at the ranch."
Demonstration
| Apples dissolve to oranges (info) | |
| A dissolve transition between two still images. | |
| Problems viewing the video? See media help. |
Links
- Shot transitions (http://www2.hawaii.edu/~ghoeffke/video_basics/shot_transitions2.htm) - From Introduction to The Basics of Video Editing
