Video Filters Tab

Compressor includes the following video filters.

Black/White Restore

Restores nearly black colors to pure black and nearly white colors to pure white without affecting colors in the rest of the image. Use this filter to better compress the solid black and white areas (the luminance) in the image, such as backgrounds. The two sliders allow you to separately set values between 0 and 100 for black and white. See Color Spaces for information on how color spaces relate to this filter.

Figure. Black Restore slider and White Restore slider.
  • Black: Sets values between 0 and 100 for black.
  • White: Sets values between 0 and 100 for white.
Brightness and Contrast

Alters the overall color and luminance values of your output media file to a brighter or darker level. Some QuickTime codecs darken your video file, so you can use this filter to compensate for that. Choose any number between –100 and 100, but avoid the extreme settings as they give a very washed-out quality.

Figure. Brightness slider and Contrast slider.
  • Brightness: Adjusts brightness to any number between –100 and 100.
  • Contrast: Adjusts contrast to any number between –100 and 100.
Color Correct Highlights, Midtones, or Shadows

Depending on which of these you choose, this corrects white balance inaccuracies and creates color effects on the bright, midtone, or dark areas of your clip. Adjust red, green, and blue values independently between –100 and 100.

Figure. Red, Green, and Blue sliders.
  • Red: Adjusts red value between –100 and 100.
  • Green: Adjusts green value between –100 and 100.
  • Blue: Adjusts blue value between –100 and 100.
Deinterlacing

Removes the effects of interlacing.

For deinterlacing, the Frame Controls feature is recommended over this Deinterlacing filter (a legacy filter) as it will always provide much higher quality. See Working with Frame Controls for more information.

For general information about deinterlacing, see About Deinterlacing.

The following (legacy) deinterlacing methods are available in the Algorithm pop-up menu.

Figure. Deinterlacing Algorithm pop-up menu.
Fade In/Out

Adds a dissolve from and to a matte color at the beginning and end of the clip.

Figure. Fade In/Fade Out filter (for video).
  • Fade In Duration: Sets the duration of the fade.
  • Fade Out Duration: Sets the duration of the fade.
  • Fade In Opacity: Sets the opacity of the clip’s video at the first frame. A value of 0.0 sets the clip video to be completely covered by the matte color. A value of 0.5 sets the clip to be 50 percent covered by the matte color.
  • Fade Out Opacity: Sets the opacity of the clip’s video at the last frame. A value of 0.0 sets the clip video to be completely covered by the matte color. A value of 0.5 sets the clip to be 50 percent covered by the matte color.
  • Fade Color: Sets the matte color. When clicked, the color picker appears where you can choose the color to fade to and from. (The Fade In and Fade Out colors must be the same.)
Gamma Correction

Controls the overall brightness of an image as displayed on a monitor by changing the gamma amount of the media file. This filter can be used to remove detail from an underexposed clip or reduce an overexposed clip’s saturation to an acceptable level without washing out the image too much. Computers using different operating systems have different monitor settings. For cross-platform viewing, correcting the gamma will improve the image for all platforms.

Figure. Gamma slider.
  • Gamma: Sets a gamma setting between 0.1 and 4.0.
Letterbox

Scales and positions the image in the frame within horizontal letterbox bars.

Figure. Letterbox filter.
  • Manual slider: Used when Manual is selected in the Output pop-up menu. Allows you to manually set the letterbox aspect ratio. The Manual slider has no effect when Manual is not selected in the Output pop-up menu.
  • Background color well: Sets the letterbox color. Click this box to choose a background color from the color picker.
Noise Removal

Reduces random flecks of noise from the image. Some codecs introduce noise into the video file, which can be softened with the Noise Removal filter. You can improve image quality and spatially compress your material more efficiently by reducing its fine detail.

The noise reduction filter allows you to blur areas of low contrast while leaving high-contrast edges sharp. This is known as adaptive noise reduction. The results are imperceptible to the human eye but improve the final compression of the source media. It is especially important to use this filter with live video.

Figure. Noise Removal filter.
Sharpen Edge

Enhances the image contrast around object edges. Some codecs blur the video image, so this filter can counteract the softening effect of noise removal or blurred source material and increase the perception of sharpness in the image. When used to an extreme, the output media file can look grainy. Choose any number between 0 and 100.

Figure. Sharpen Edge slider.
  • Amount: Sets a sharpen setting between 0.0 and 100.0.
Text Overlay

Superimposes text onto the image. This is a useful tool for stamping other relevant text information onto your output media file.

Figure. Text Overlay filter.

Use the following controls to position text, select color and font, and set its opacity.

  • Alpha: This slider sets the text opacity. Choose between 0 and 1. A value of 0 makes the text completely transparent, while a value of 1 makes it completely opaque.
  • Overlay Text: Type your text here.
  • Text Color: Click this box to choose a text color from the color picker.
  • Select Font: Click this button to open a font palette for selecting font, style, and size.
Timecode Generator

Superimposes the clip’s timecode text onto the image. You can also add a label to the timecode text.

Figure. Timecode Generator filter.
  • Alpha: This slider sets the timecode text opacity. Choose between 0 and 1. A value of 0 makes the text completely transparent, while a value of 1 makes it completely opaque.
  • Label: Type any text that you want to appear to the left of the timecode number here.
  • “Start Timecode at 00:00:00:00” checkbox: Select this checkbox to have the timecode start at 00:00:00:00. When this is not selected, the clip’s timecode is used.
  • Text Color: Click this box to choose a timecode text color from the color picker.
  • Select Font: Click this button to open a font palette for selecting font, style, and size.
Watermark

Superimposes a watermark onto the image. This is a useful tool for stamping a suitable logo onto your output media file. The watermark filter can apply either still images or movies as watermarks on your output media file.

Figure. Watermark filter.

Use the following pop-up menus, fields, and sliders to position and size the watermark and set its opacity.

  • Scale By: This slider sets the size of the watermark image size.
  • Alpha: This slider sets the watermark image opacity. Choose between 0 and 1. A value of 0 makes the watermark image completely transparent, while a value of 1 makes it completely opaque.
  • Repeat checkbox: Used when you choose a clip as the watermark, this checkbox allows you to have the watermark clip loop its playback. If you don’t select this checkbox, the watermark clip plays until its end and then disappears.
  • Choose button: Click this button to open the file selection dialog and select a stored watermark movie or still image.