Operation -- Effects

• Crossl . Use 3x3 cross median matrix.
• Square . Use 3x3 square median matrix.
• Square5 . Use 5x5 square median matrix.

Reduce noise in an image by blending the brightness of pixels within a selection. The filter searches the pattern of a pixel selection for pixels of similar brightness, discarding pixels that differ too much from adjacent pixels, and replaces the center pixel with the median brightness value of the searched pixels.

The filter's effect is analogous to taking a picture of a moving object with a fixed exposure time.

Quickly blurs an image by an adjustable amount. The filter adds low-frequency detail and can produce a hazy effect.

Simulate the blur of a rotation of a camera around center of image to produce a soft blur.

For each pixel in image compute maximal difference between intensities of center pixel and its neighborhoods in 3x3 matrix. For example if the center pixel is white and one of the neighbours is black then the difference if maximal and equal to 100 percents, while if the matrix is entirely black the difference is 0 percents. So, apply specified FilterLess for pixels, which has this difference less than Level , and apply FilterGreater otherwise.

The following filter values are accepted:

• None . No filtering will perform.
• Medium . Apply medium high passing.
• HighPassHigh . Apply strong high passing.
• HighPassLow . Apply weak high passing.
• LowPassHigh . Apply strong low passing.
• LowPassMedium . Apply medium low passing.
• LowPassLow . Apply weak low passing.
• MedianLow . Apply weak median filtering.
• MedianHigh . Apply strong median filtering.

Applie random pixels to an image, simulating the effect of shooting pictures on high-speed film.

Shuffle pixels in an image to make the selection look less focused.

Make a image appear as raised or stamped (standard embossing displacement of the original image and inverted one).

Make a image appear raised or stamped (advanced embossing method based on lightness distribution for image intensity height map).

Make a image appear as raised or stamped using height map of one of pre-defined textures.

Simple mosaic filter breaks up an image into blocks of different colored pixels. If select simple filter, then Mosaic method draws the image as if it were made up of small chips or tiles and adds grout between the tiles. If Simple is False then the color of the tile is the average color of pixels which this tile covered by.

Compute halftone pattern of the image.