PXL Presets

There are several PXL tool presets installed with Composite and they are described below:

• Blur 5 x 5 A simple 5 x 5 blur kernel with hard coded weights.

Original	Blurred

• Clouds Creates a cloud texture.

• Corner Pin Provides eight parameters to control the four corners of the image, and computes a perspective transformation to place the image based on the corners. By setting expressions to link the eight parameters to a garbage mask rectangle, a simple interactive corner pinner can be made.

• Directional Blur Performs an anti-aliased blur using a rotated rectangle to achieve a blur in a particular direction.

Original	Blurred

• Emboss Simple emboss, based on gradients of luminance.

Original	Embossed

• Erode Alpha Erodes alpha using a simple square kernel.

Original	Eroded Alpha with a 10 pixel radius

• Gamma Applies a simple gamma exponential to all channels.

Original	Gamma correction applied

• Lattice Adds a lattice of shaded tubular bars to the image channels.

• Lens Flare Provides 1 to 5 lines of flares centered on bright points on the image. You can control the weight of the lines relative to the weight of the source pixel at the center of the blur. There is also a falloff gamma factor for the weight of the lines as they get more distant from the centre of the blur.

Original	Lens flare applied

• Marble Creates a marble texture.

• Mandelbrot Generates a mandelbrot fractal image.

• Noise Wipe Performs a wipe transition between two images where each pixel switches at a random time.

• Noise Creates a pattern of random noise.

• Num Colors A preset that reduces the number of colors to create images with banding. It can also add dithering noise to reduce the banding.

NumColors = 6, Dither = 0	NumColors = 2, Dither = 1

• Out of Range Marks pixels outside of a specified range with a specified color, such as red in the following image.

• Polygon Blur Performs a simple anti-aliased polygon blur, to simulate a lens effect. You can choose the number of sides, the radius, and rotation angle.

Original image	Polygon Blur applied

• Ripple Twirl A twirl effect with some extra ripples.

Original image	Ripple Twirl applied

• Sharpen 5 x 5 A simple 5x5 sharpening kernel with hard coded weights.

Original image	Sharpened

• Spherical Mapping Applies spherical mapping to the current selection.

Original image	Spherical mapping applied

• Stereo Anaglypha A preset that provides two methods of combining colors into a single Red/Blue glasses image (left image) and one method for cross-eyed viewing (right image).

Red/Blue glasses	Cross-eyed viewing

• Wood Frame Creates a wood frame. You can specify the frame's thickness and lighting qualities.

• Wood Creates a wood texture. You can specify the scale, size, and fineness of the grain.

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