Effects¶
Effects are used in OpenShot to enhance or modify the audio or video of a clip. They can modify pixels and audio data, and can generally enhance your video projects. Each effect has its own set of properties, most which can be animated over time.
Effects can be added to any clip by dragging and dropping them. Each effect is represented by a small colored icon and the first letter of the effect name. To view an effect’s properties, click on the effect icon. The property editor will appear, where you can edit these properties. Note: Pay close attention to where the play-head (i.e. red playback line) is. Key frames are automatically created at the current playback position, to help create animations.

Video Effects¶
Effects are generally divided into two categories: video and audio effects. Video effects modify the image and pixel data of a clip. Below is a list of video effects, and their properties. Often it is best to experiment with an effect, entering different values into the properties, and observing the results.
Alpha Mask / Wipe Transition¶
Uses a grayscale mask image to gradually wipe / transition between 2 images.
Name |
Description |
---|---|
brightness |
|
contrast |
|
reader |
|
replace_image |
|
Bars¶
Add colored bars around your video.
Name |
Description |
---|---|
bottom |
|
color |
|
left |
|
right |
|
top |
|
Blur¶
Adjust the blur of the frame’s image.
Name |
Description |
---|---|
horizontal_radius |
|
iterations |
|
sigma |
|
vertical_radius |
|
Brightness & Contrast¶
Adjust the brightness and contrast of the frame’s image.
Name |
Description |
---|---|
brightness |
|
contrast |
|
Caption¶
Add text captions on top of your video.
Name |
Description |
---|---|
background |
|
background_alpha |
|
background_corner |
|
background_padding |
|
caption_font |
|
caption_text |
|
color |
|
fade_in |
|
fade_out |
|
font_alpha |
|
font_size |
|
left |
|
line_spacing |
|
right |
|
stroke |
|
stroke_width |
|
top |
|
Chroma Key (Greenscreen)¶
Replaces the color (or chroma) of the frame with transparency (i.e. keys out the color).
Name |
Description |
---|---|
color |
|
fuzz |
|
halo |
|
keymethod |
|
Color Saturation¶
Adjust the color saturation.
Name |
Description |
---|---|
saturation |
|
saturation_B |
|
saturation_G |
|
saturation_R |
|
Color Shift¶
Shift the colors of an image up, down, left, and right (with infinite wrapping).
Each pixel has 4 color channels:
Red, Green, Blue, and Alpha (i.e. transparency)
Each channel value is between 0 and 255
The Color Shift effect simply “moves” or “translates” a specific color channel on the X or Y axis. Not all video and image formats support an alpha channel, and in those cases, you will not see any changes when adjusting the color shift of the alpha channel.
Name |
Description |
---|---|
alpha_x |
|
alpha_y |
|
blue_x |
|
blue_y |
|
green_x |
|
green_y |
|
red_x |
|
red_y |
|
Crop¶
Crop out any part of your video.
Name |
Description |
---|---|
bottom |
|
left |
|
right |
|
top |
|
x |
|
y |
|
Deinterlace¶
Remove interlacing from a video (i.e. even or odd horizontal lines)
Name |
Description |
---|---|
isOdd |
|
Hue¶
Adjust the hue / color of the frame’s image.
Name |
Description |
---|---|
hue |
|
Negative¶
Negates the colors, producing a negative of the image.
Object Detector¶
Detect objects through the video.
Name |
Description |
---|---|
class_filter |
|
confidence_threshold |
|
display_box_text |
|
objects |
|
selected_object_index |
|
Pixelate¶
Pixelate (increase or decrease) the number of visible pixels.
Name |
Description |
---|---|
bottom |
|
left |
|
pixelization |
|
right |
|
top |
|
Shift¶
Shift the image up, down, left, and right (with infinite wrapping).
Name |
Description |
---|---|
x |
|
y |
|
Stabilizer¶
Stabilize video clip to remove undesired shaking and jitter.
Name |
Description |
---|---|
zoom |
|
Tracker¶
Track the selected bounding box through the video. The tracked object can be selected as a parent on other clips.
Wave¶
Distort the frame’s image into a wave pattern.
Name |
Description |
---|---|
amplitude |
|
multiplier |
|
shift_x |
|
speed_y |
|
wavelength |
|
Audio Effects¶
Audio effects modify the waveforms and audio sample data of a clip. Below is a list of audio effects, and their properties. Often it is best to experiment with an effect, entering different values into the properties, and observing the results.
Compressor¶
Reduce the volume of loud sounds or amplify quiet sounds.
Name |
Description |
---|---|
attack |
|
bypass |
|
makeup_gain |
|
ratio |
|
release |
|
threshold |
|
Delay¶
Adjust the synchronism between the audio and video track.
Name |
Description |
---|---|
delay_time |
|
Distortion¶
Alter the audio by clipping the signal.
Name |
Description |
---|---|
distortion_type |
|
input_gain |
|
output_gain |
|
tone |
|
Echo¶
Reflection of sound with a delay after the direct sound.
Name |
Description |
---|---|
echo_time |
|
feedback |
|
mix |
|
Expander¶
Louder parts of audio becomes relatively louder and quieter parts becomes quieter.
Name |
Description |
---|---|
attack |
|
bypass |
|
makeup_gain |
|
ratio |
|
release |
|
threshold |
|
Noise¶
Random signal having equal intensity at different frequencies.
Name |
Description |
---|---|
level |
|
Parametric EQ¶
Filter that allows you to adjust the volume level of a frequency in the audio track.
Name |
Description |
---|---|
filter_type |
|
frequency |
|
gain |
|
q_factor |
|
Robotization¶
Transform the voice present in an audio track into a robotic voice effect.
Name |
Description |
---|---|
fft_size |
|
hop_size |
|
window_type |
|
Whisperization¶
Transform the voice present in an audio track into a whispering voice effect.
Name |
Description |
---|---|
fft_size |
|
hop_size |
|
window_type |
|
For more info on key frames and animation, see Animation.