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Enhance Filter Description
Antialiasing It eliminates distortions from a picture while downscaling it to a relatively
lower resolution to smooth out the edges.
Deinterlacing This process removes extraneous and undesirable picture information from
interlaced image frames. The choice to maintain the interlacing of odd and
even image fields is present.
Despeckle It cleans up minor flaws from the present image area, like noise particles. The
median setting has two options: adaptive, which analyses the histogram of
the chosen image’s surrounding area, or recursive, which performs repeated
actions to improve the image. The radius measurement could be adjusted to
eliminate flaws. For the image’s lighter and darker cells, Black level and White
level options are also available.
Destripe This technique eliminates the vertical stripes in a picture that are the result of
mediocre scanners. The strips are removed by adding a pattern that obstructs
the picture. The “Width” choice that is offered with this filter is used to adjust
the filter’s strength.
NL (Non-Linear) This filter combines the Despeckle, Sharpen, and Smooth enhancement
functions to enhance the overall look of focus, rather than just on a specific
area of the picture. It removes swollen eyes and makes adjustments. It may
establish a threshold value to reduce the intensity of red eye.
Sharpen (UnSharp Mask) It is helpful for enhancing edges and any kind of noise in digitised images to
compensate for lack of sharpness. The user can preview the image and adjust
the sharpness. Without adding more noise, it sharpens the picture. With the
help of the Radius, Amount, and Threshold parameters, the user can choose
where sharpening is necessary and with what level of power.
Distorts Filter
Distorts Filter Description
ApplyLens It overlays the picture with an elliptical lens.
Emboss It makes the picture appear to be embossed. Option settings include an
image’s azimuth (a component of lighting), elevation, and depth.
Engrave It creates an engraving appearance similar to that of coins. Based on the
value of the underlying pixels, black and white horizontal lines with various
heights are used to simulate the image.
Lens Distortion It enables the correction of distortion brought on by the camera lens.
Kaleidoscope Gives the appearance of a kaleidoscope in the picture.
Mosaic It divides the picture into numerous square or polygonal tiles that are slightly
raised and attached to one another to resemble a mosaic. It offers options
for selecting Tile size, Height, Direction, and Color Variation, among others.
Polar Coordinates With all potential polar coordinates and intermediates, it provides a circular
or rectangular representation of the image.
Ripples Pixels are moved around in a wave pattern. It has several choices, including
Wrap Type, Orientation, and Edges.
278 Touchpad Web Applications-XI

