BCC Levels Gamma
Category: BCC Color & Tone
Effect Name: BCC Levels Gamma
The BCC Levels Gamma filter, part of the BCC Color & Tone category, provides options for adjusting contrast and eliminating noise in your image. Video shot at night or in poorly lit settings often contains noise in the dark areas. Increasing Input Black removes this noise by treating all areas darker than the Input Black setting as black. Washed out or overexposed images do not contain the full range of levels. Increasing Input Black and/or decreasing Input White can boost the contrast of the image.
Working with the Filter
Presets and Common Controls
- BCC filters come with a library of factory installed presets plus the ability to create your own custom presets and preview them with the BCC FX Browserโข.
- BCC filters also include common controls that configure global effect preferences and other host-specific effect settings.
For more information about working with presets and other common controls, Click Here.
Effect Controls
Mocha Mask and Track
Continuum effects include integrated masking and matte tools that allow you to restrict the effect to specific regions of the image.
- Mocha masks: used to create custom spline masks. Mocha also includes Matte Assist ML and Matte Refine ML, which use machine learning to generate and track masks.
- Pixel Chooser: used to generate geometric shapes, gradients, or mattes based on channel, luma, or color-based selections. Additionally, an AI depth map generator, and an AI-powered face detection model allow for precise control of masks and mattes.
Note: Mocha can also be used to drive geometric parameters. See the Mocha Motion Tracker documentation for details.
For more information, see Mocha and Pixel Chooser.
Compare Mode
The Compare Mode is used to view the filtered result alongside the original source layer. Several split-screen and side-by-side display options are available.
For more information, see Compare Mode.
- Input Black:Sets the channel values of the input image that are treated as pure black by the filter.
- Input White:Sets the channel values of the input image that are treated as pure white by the filter.
Note: You can create dramatic posterization-like effects by adjusting the input levels so that only a small range of input values are used, and/or by processing chosen channels of the image. The posterization effect below was created by increasing Input Black and decreasing Input White to create a steeper gradient between the luminance values in the image.
- Gamma:Sets the slope of the curve used to convert from the input color values to output values in pixels brighter than Input Black and darker than Input White.
- Output Black:Sets the channel value at which black source pixels are output. If you are working with broadcast material, you may need to raise the Output Black value in order to avoid NTSC-illegal black levels.
- Output White:Sets the channel value at which white source pixels are output. If you are working with broadcast material, you may need to decrease the Output White value to avoid NTSC-illegal white levels.
- Channels:Determines which channels the filter affects. The choices are RGB, Red, Green, Blue, Red and Green, Red and Blue, Green and Blue, Difference, and Alpha. Difference uses the difference between each filtered channel and the corresponding source channel.
- Mix with Original: Blends the source and filtered images. Use this parameter to animate the effect from the unfiltered to the filtered image without adjusting other settings, or to reduce the effect of the filter by mixing it with the source image.
