Video effects are techniques used in film and video production to enhance or alter the visual appearance of footage. These effects can range from simple adjustments, like changing brightness and contrast, to complex transformations, such as adding 3D animations or special effects. They help create a specific mood, convey a message, or make scenes more engaging. Common types of video effects include transitions, which smoothly move from one scene to another, and filters, which change the color or texture of the video. Other effects, like slow motion or time-lapse, manipulate the speed of the footage, adding dramatic flair or emphasizing certain moments.