| jump cut | This is a jolt in continuity when you stop/restart without a change in shot size or angle |
| JPEG | The Joint Photographic Experts Group (JPEG) format is widely used. It is a bitmap format commonly used to display photographs and other continuous-tone images in web pages on the Internet. JPEG retains all the color information in an RGB image but uses a compression scheme that reduces file size by discarding extra data not essential to the display of the image." |
| Joule | The unit of energy. 1 Joule = 1 watt second. |
| Jaggies | The term to describe diagonal lines in a digital image that appear jagged. Jaggies are produced due to the square nature of a pixel. Even when aliased certain subjects like telephone lines seem unnatural. It can be made worse by sharpening images. |
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