Photographic Filters  

Photographic filters are akin to the types of lenses you would mount on the front of a camera for various special effects.


Soft contrast improvement

Soft contrast adds contrast and enhanced color saturation to a picture, without adding sharpness. It is often useful for adding contrast for dreamy or sometimes foreboding effect, or for starkness when regular contrast or sharpness is not desired.

The softness slider controls how large the bloom of the effect will appear. Exposure controls how bright the image will appear. Level lets you dissolve the effect out by a certain level if it is too intense for your purposes.

Light diffusion

Light diffusion is the transmission and scattering of light through a translucent material set over a camera lens.  This has the effect of softening a photo.  It is used often for formal portraits and wedding photographs.  In film, it is used often in love scenes, and by anime for no particular reason other than looking cool.  Very small amounts of light diffusion can be used on most images for an added bit of realism.

The radius controls how large the glow effect will appear.

The curve slider determines the shape of the curve used to soften the image.  It can be tighter toward the center, with a gentle falloff, or the other way around. It has no effect when in “Approximate” mode.

The level slider sets how much of the glow effect to use.  A full setting is sometimes too much, and will cause details to be lost.  Halfway is a good point for the effect to be noticeable, but not obtrusive.  Lower values are best for subtle effects.


Star filter

Star filters applies a bi-directional linear blur to simulate shooting through a star filter.


Fish eye

The fisheye filter simulates shooting through a wide or distorted lens.


Fog filter

The fog filter simulates shooting on a foggy day by decreasing contrast and saturation toward the bottom of the image. You can select a fog color from the color swatch, or click the color box to its left to select a precise color. The fog filter can also add a mysterious quality to your video.



The sunset filter simulates shooting during the dusk hours by reddening the upper portion of the image. Select a color for the top and bottom to overlay over your picture. You can select precise colors by clicking on the color box to the left of the swatches. The sunset filter can also add a dramatic quality to your video.


Blue Enhance (previously Polarize)

In photography, a polarizing lens for a camera is used to reduce glare and reflections and improve color by reducing the light that enters the camera from certain directions.

The Polarize filter increases the intensity of color in skies.  Here, you can see how the blueness of this sky is enhanced.


Day for night

The day for night filter simulates shooting at night by reducing value and saturation in the image, while applying a bluish tint

Remove red from selection

Sometimes you need to remove “red-eye” from a photograph. This can be done by selecting the area where you want to remove the red, and selecting “Remove red from selection.