Lyric Color Matte

Color Matte

The Lyric Color Matte produces a matte that selects areas of similar color in a scene. You specify a base color and then set hue, saturation and luminance ranges to determine the matte areas. It is similar to the built-in Chroma Key filter, with the additional advantages that you can use the Mask Color eyedropper to pick the base color in the scene rather than guessing its hue angle, and it has all the Lyric matte control and alpha-channel mixing capabilities including the ability to stack multiple Color Mattes to select multiple color ranges in the same scene.

This matte is used both as a compositing mask, to select a feature that is to be composited over another clip, and as a filter mask to perform some correction or stylizing on the selected feature.

The Lyric Edges Matte filter includes a set of matte and output controls that are common across all Lyric matte filters. For a detailed description of these controls, please see the Matte Common Controls documentation.

For background information on mattes and their uses in Final Cut, please refer to the Lyric Matte Primer.


The Mask Color control is used to specify the base color for the matte. You can either enter a color by clicking on the color swatch or pick a color in the image by clicking on the eye-dropper and then clicking on a color in the scene.

Before the Matte Color is first picked, the matte generation is disabled and the whole frame is visible. When the Mask Color is first picked, the matte is extracted and enabled and all parts of the frame not of the selected color will be masked out and become transparent. This makes it difficult to select a different color in the scene, if you wish to change the mask color by another eye-dropper click. You can temporarily make the whole frame visible by checking the Show Source checkbox in the Output section of the control panel, picking the color with the eye-dropper and then un-checking Show Source to see the effect of the new matte.

The range and rolloff sliders allow you to fine tune the range of colors that will be selected by the matte. Increasing the range sliders increases the range of hue, saturation and luminance centered on the Mask Color that will be selected. Increasing the rolloff smooths the transition across the range boundaries.

The Matte Control and Output sections are common controls that are documented on the Matte Common Controls page.

As mentioned above, you can stack several Lyric Matte filters in a single clip to make a final composite matte by setting their Matte Mixing menu to appropriate values: Add to Existing Alpha will combine selections, Subtract from Existing Alpha will remove some unwanted part of the matte and Intersect with Existing Alpha will make the combining mattes act like garbage mattes for one-another. You can also use the Final Cut crop tool as a final garbage matte; it is applied after all other mattes are applied.


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Final Cut Plugins

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