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Threshold

S_Threshold

Section titled “S_Threshold”

Sets the color channels of the source clip to full on or full off using a given softness and threshold. This can be used to increase the contrast of each color channel independently.

In the Sapphire Adjust effects submenu.

Threshold

Inputs:

Section titled “Inputs:”

  • Source: The current layer. The clip to be processed.

  • Mask: Defaults to None. Interpolate between the result and the Source input. White areas use the result of the effect. Black areas use the Source clip.

Parameters:

Section titled “Parameters:”

  • Load Preset (Push-button) Brings up the Preset Browser to browse all available presets for this effect.

  • Save Preset (Push-button) Brings up the Preset Save dialog to save a preset for this effect.

  • Mocha Project (Default: 0, Range: 0 or greater) Brings up the Mocha window for tracking footage and generating masks.

  • Blur Mocha (Default: 0, Range: 0 or greater) Blurs the Mocha Mask by this amount before using. This can be used to soften the edges or quantization artifacts of the mask, and smooth out the time displacements.

  • Mocha Opacity (Default: 1, Range: 0 to 1) Controls the strength of the Mocha mask. Lower values reduce the intensity of the effect.

  • Invert Mocha (Check-box, Default: off) If enabled, the black and white of the Mocha Mask are inverted before applying the effect.

  • Resize Mocha (Default: 1, Range: 0 to 2) Scales the Mocha Mask. 1.0 is the original size.

  • Resize Rel X (Default: 1, Range: 0 to 2) The relative horizontal size of the Mocha Mask.

  • Resize Rel Y (Default: 1, Range: 0 to 2) The relative vertical size of the Mocha Mask.

  • Shift Mocha (X & Y, Default: [0 0], Range: any) Offsets the position of the Mocha Mask.

  • Dilate Mocha (Default: 0, Range: -100 to 100) Dilates or erodes the Mocha Mask by this pixel amount before using.

  • Dilation Quality (Popup menu, Default: Fast) Selects whether Dilate Mocha adusts quickly in default Fast mode or looks better in High quality mode.

    • Fast: Dilate Mocha in Fast mode for quick adjustments.
    • High: Dilate Mocha in High quality mode for a better looking mask shape.

  • Bypass Mocha (Check-box, Default: off) Ignore the Mocha Mask and apply the effect to the entire source clip.

  • Show Mocha Only (Check-box, Default: off) Bypass the effect and show the Mocha Mask itself.

  • Combine Masks (Popup menu, Default: Union) Determines how to combine the Mocha Mask and Input Mask when both are supplied to the effect.

    • Union: Uses the area covered by both masks together.
    • Intersect: Uses the area that overlaps between the two masks.
    • Mocha Only: Ignore the Input Mask and only use the Mocha Mask.

  • Threshold (Default: 0.5, Range: 0 or greater) The source brightness value to use as the mid-point of the thresholding. This is often a middle gray around .5.

  • Threshold Add Color (Default rgb: [0 0 0]) Raises the thresholds on each color channel using this color. It has no effect when black.

  • Softness (Default: 0.2, Range: 0.001 to 1) The softness of the transition between full off and on. Increase for smoother transitions, decrease for sharper ones.

  • Soft Rel Red (Default: 1, Range: 0 or greater) The relative softness of the red thresholding.

  • Soft Rel Green (Default: 1, Range: 0 or greater) The relative softness of the red thresholding.

  • Soft Rel Blue (Default: 1, Range: 0 or greater) The relative softness of the red thresholding.

  • Saturation (Default: 1, Range: any) Scales the color saturation. Increase for more intense colors. Set to 0 for monochrome.

  • Mask Use (Popup menu, Default: Luma) Determines how the Mask input channels are used to make a monochrome mask.

    • Luma: the luminance of the RGB channels is used.
    • Alpha: only the Alpha channel is used.

  • Blur Mask (Default: 0.05, Range: 0 or greater) Blurs the Matte input by this amount before using. This can provide a smoother transition between the matted and unmatted areas. It has no effect unless the Matte input is provided.

  • Invert Mask (Check-box, Default: off) If on, inverts the Matte input so the effect is applied to areas where the Matte is black instead of white. This has no effect unless the Matte input is provided.