Channel Block

This color correction allows you to adjust the amount of color information that should be preserved in a clip.

Beyond blocking a specific color channel, you can assign a new amount that ends up overwriting that entire channel. This plug-in allows you to select the standard RGB channels as well as HSB, CMY and Y’CbCr.

Original (left), assigning new luminance (center), assigning new saturation (right)

Original (left), assigning new luminance (center), assigning new saturation (right)

The second example above was generated in the Y’CbCr colorspace, preserving chroma (UV) channels and assigning a new luminance (Y) value to the entire frame.

The third example was generated in the HSB colorspace, preserving hue and brightness across the frame and setting a new saturation level.

Compatibility

Channel Block is compatible with Final Cut Pro, Motion, Premiere Pro and After Effects.

Parameters

Presets

Presets contain a snapshot of your effect configuration. 7 built-in presets are available.

When you save parameter configuration to a file on disk, this file can later be loaded to recreate the same effect configuration. Presets generated in one video application can be used by the same plug-in running in a different video application.

Working with the Presets Menu

Channel Block

Model

The following options are available:

  • RGB (default) — Block the red, green and blue channels and assign a new value, if needed, to any channel you have blocked.
  • HSB — Block the hue, saturation and brightness channels and assign a new value, if needed, to any channel you have blocked.
  • CMY — Block the cyan, magenta and yellow channels and assign a new value, if needed, to any channel you have blocked.
  • YUV — Block the luminance and chroma channels and assign a new value, if needed, to any channel you have blocked.

Color Space

The following options are available:

  • Rec. 709 (default) — Channel replacement values are to be interpreted according to the transfer curve specified by the Rec. 709 standard.
  • Rec. 2020 — Input values are to be interpreted according to the transfer curve specified by the Rec. 2020 standard.
  • Rec. 2100 PQ — Channel replacement values are to be interpreted according to the PQ transfer function.
  • Rec. 2100 HLG — Channel replacement values are to be interpreted according to the HLG transfer function.
When you assign a new value higher than 0% to a color channel you have blocked, this parameter controls how that amount should be interpreted.

Animation

Build In/Out

Build In/Out lets you enable and control animation progress.

When the animation is Off, no transition into or out of the effect occurs.

When the effect is set to build in and out by Trimming, the following parameters are displayed:

The Trim slider defines a range where the effect has been fully built. Any time outside this range is spent building the animation in or out. For example, if the Trim range is set between 20% and 80%, the effect builds in from the start of the clip up to 20% of its duration. The effects builds out from 80% to the end of the clip. If the clip were 5 seconds long, the build in and out animations last 1 second each.

When the effect is set to build in and out through a Duration, the following parameters are displayed:

The Build In (secs) and Build Out (secs) give you an exact way to decide how long each animation should last. Should your selection not be applicable to the current clip, a warning will appear in the output. For example, if your clip lasts only 3 seconds, it would be impossible to have the build in and out animations both last 2 seconds each (as the total would be 4 seconds).

When the effect is set to build in and out through Keyframes, a single parameter is displayed:

The Build In (Easing) and Build Out (Easing) parameters let you choose the animation curve when animating by Trimming the clip or by specifying a Duration.

The Progress parameter gives complete control over the animation to you. You will need to keyframe the Progress parameter using features of the video app.