Editing QuickTime Movies > Using Filter tracks > QuickTime filter effects
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QuickTime filter effects


Adobe GoLive comes with the following QuickTime built-in video filter effects. As you view each filter, the preview pane displays the effect:

Alpha Gain The alpha gain filter manipulates the alpha channel of a single track. This operation is commonly applied before passing the track to the Alpha Compositor effect. The Alpha Gain effect has several parameters:
  • Bottom pin: The minimum value that the alpha channel can take after the gain and offset parameters have been applied.
  • Top pin: The maximum value that the alpha channel can take after the gain and offset parameters have been applied.
  • Gain: This value is multiplied by the original alpha channel value.
  • Offset: This value is added to the old alpha channel, after it has been multiplied by the gain parameter.

    • Blur This effect applies a convolution blur effect to a single track. The Blur effect has one parameter:
  • Amount of blurring: This pop-up menu provides a choice of values, from 1 (least) to 7 (most). The larger the value, the longer the effect will take to run and the greater the degree of blurring.

    • Brightness and Contrast This filter adjusts the brightness and contrast of the track. The default value is 0. Values between -100 and 0 decrease the brightness and contrast; values between 0 and 100 increase the brightness and contrast.

    Color Style This effect allows you to apply two color change effects to a single track. Both effects process the red, green, and blue components of each pixel independently. The color style effect offers two options:

    The first option, Solarization, adjusts the color balance of the source track by generating a table of replacement color values from two parameters. The table starts at zero intensity and increases to the maximum intensity at the peak point. After that it falls back to zero. It has two controls:
  • Solarize Amount: This slider control adjusts the maximum intensity of the solarization table.
  • Solarize Point: This slider control adjusts the peak point of the solarization table.

    • The second effect, Posterization, produces a "color banding" effect. It reduces the number of colors in an image by replacing all pixels whose color is in a consecutive range with the middle color from that range. It has a single slider control:
  • Posterize amount: The number of colors that are grouped and replaced with the mid-range color.

    • Color Tint This filter converts the track to greyscale, and then applies a light and a dark color to the image. The light color replaces the white in the greyscale image, and the dark color replaces the black. The end result is a tinted duochrome version of the source image.

    This filter has several controls.
  • Tint Type: This pop-up menu lets you select from a choice of five different tints, including Black and White, X-Ray, Sepia, Cobalt, and Other. When you choose Other, the following parameters are enabled:
  • Light color: This color replaces the white of the greyscale image.
  • Dark color: This color replaces the black of the greyscale image.
  • Brightness: Adjusts the brightness of the source between -255 (all colors are replaced with black) and 255 (all colors are replaced with white). A value of 0 will leave the brightness unchanged.
  • Contrast: Adjusts the contrast of the source between -128 (minimum contrast) and 128 (maximum contrast). A value of 0 will leave the contrast unchanged.

    • ColorSync (Mac OS only) This effect adjusts the color balance of an image to match a specified color sync profile. Typically, you would use this to adjust the color profile of an image to match the current display device. This allows you to maintain accurate color representations across devices. You specify both the color sync profile of the source image and the color sync profile of the destination device the image will be displayed on. The color sync filter has three parameters:
  • Source profile: The color sync profile of the source image.
  • Destination profile: The color sync profile of the target device.
  • Matching Option: Allows you to achieve maximum similarity for adjusting converted colors for the following:
  • Peripheral (photos)
  • Saturation (graphics)
  • Absolute Colorimetic (logos)
  • Relative Colorimetic (logos)

    • Edge Detection This effect applies an edge detection convolution to a single track. The performance of the edge detection is determined by the convolution kernel. This is a matrix of values applied to each pixel of the source to produce the resulting image. This effect has two parameters:
  • Edge thickness: This pop-up menu gives you a choice of seven values, from 1 (least) to 7 (most). The larger the value, the thicker the edges in the resulting image.
  • Colorize Result: If this option is selected, the edges produced are colorized, based on the color of the source pixels around them. Otherwise, edges are rendered as light gray against a dark gray background.

    • Emboss This effect applies an emboss convolution to a single track. This effect has one parameter:
  • Amount of Embossing: This pop-up menu gives you a choice of seven values, from 1 (least) to 7 (most). The higher the value, the heavier the embossing effect.

    • Film Noise This effect simulates effects that are seen on aged film stock. It can be used to make a video source appear as if it has suffered the effects of age and wear. The film noise effect offers the options of hairs and scratches. These simulate hairs lying on the surface of the film, and vertical or near-vertical one-pixel lines that simulate scratches. Five parameters can be adjusted to control the visual impression:
  • Hair density: This parameter controls the number of hairs that are drawn on each frame and the frequency with which they appear.
  • Hair length: The maximum length (in pixels) of the hairs being drawn.
  • Scratch density: This parameter controls the number of scratches that are drawn on each frame and the frequency with which they appear.
  • Scratch duration: The maximum number of frames for which each scratch appears.
  • Scratch width: The maximum width, in pixels, of a scratch.

    • General Convolution This effect applies a general-purpose convolution effect to a single track. The effect that results is determined by the values entered into the kernel parameters of the effect. The kernel for this convolution is a 3-by-3 matrix of values, consisting of the Cells 1 through 9.

    The convolution algorithm examines every pixel of the source, and the eight pixels surrounding it. These values are multiplied by the appropriate values in the cells and summed. This sum is then used as the value of the corresponding destination pixel.

    HSL Balance This filter effect allows you to independently adjust the hue, saturation, and lightness channels of a single track. The HSL balance filter effect has three parameters:
  • Hue: Adjusts the hue channel value of each pixel.
  • Saturation: Adjusts the saturation channel value of each pixel.
  • Lightness: Adjusts the lightness channel value of each pixel.

    • Lens Flare This filter produces a sun-spot effect. The Lens Flare filter has two options: Intensity and Flare Center, and Flare Type. The Intensity and Flare Center option has three parameters:
  • Size: Adjusts the flare center size. 1.0 is a small sun-spot in the center of the image, and the increasing values expand the flare until the flare covers the entire image at 2.0.
  • Brightness: Adjusts the brightness of the flare. 0.0 is transparent and 1.0 is the most opaque.
  • Flare Center: The X and Y axis settings adjust the horizontal and vertical motion dispersion of the flare.

    • The Flare Type option visually displays the type of flare image being used.

    RBG Balance The RGB balance filter allows you to independently adjust the red, green, and blue channels of a single track. The RGB balance filter has three parameters:
  • Red multiplier: Adjusts the red channel value of each pixel.
  • Green multiplier: Adjusts the green channel value of each pixel.
  • Blue multiplier: Adjusts the blue channel value of each pixel.

    • Sharpen This effect applies a convolution sharpen effect. The sharpening that is applied is determined by the convolution kernel. This is a matrix of values that are applied to each pixel of the source track. The sharpen filter effect has two parameters:
  • Amount of sharpening: This pop-up menu gives you a choice of seven values, from 1 (least) to 7 (most). The higher the value, the faster the effect will run and the greater the degree of sharpening
  • Brightness: The default value of 1.0 sharpens the source track but doesn't change its brightness. Values between 0.0 and 1.0 decrease brightness; values greater than 1.0 increase brightness.

    • Editing QuickTime Movies > Using Filter tracks > QuickTime filter effects