image filter


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image filter

A software routine that changes the appearance of an image or part of an image by altering the shades and colors of the pixels in some manner. Filters are used to increase brightness and contrast as well as to add a wide variety of textures, tones and special effects to a picture. See graphics filter and Photoshop plug-in.


Original
The original painting was photographed and scanned into the computer. The following images were created in Photoshop by applying a filter to the original. (From "Moonlit Gladiolas" by Barbara Postel. Image courtesy of Pyramid Studios, www.artistexpo.com)







Gaussian Blur Filter
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)






Solarizing Filter
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)






Find Edges Filter
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)






Glowing Edges Filter
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)






Embossing Filter
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)






Changing Expressions
Image editing can also make subtle changes. Look at the eyes in the original photo (top) compared to the bottom, which was changed in Corel's PhotoPaint using the Mesh Warp filter. (Image courtesy of Corel Corporation.)







Enhance, Send and Post
With a couple of taps on the Instagram app in the iPhone, the original photo (top) was greatly enhanced. Instagram includes a variety of image filters that users can choose before sending and posting their photos to Facebook, Twitter, foursquare or Tumblr.
References in periodicals archive ?
In this paper, we proposed a hardware-in-the-loop (HIL) simulation based evolutionary design method of image filter.
However, the board cancelled plans for the image filter following protests against the decision, leaving pornography freely available to all site visitors.
Four different dehazing contrast-enhancement filters are used in two different image dehazing methods: guided image filter [19], median filter, NLM filter [29], and bilateral filter [18].
Since boundary preserving is the most prominent characteristic for guided image filter, all the boundary in original image p can be theoretically preserved in filtering output image q.
Antispam filters can now be updated over the Internet, just like virus signatures and scanning engines, and users will also have access to additional filters, including Image Filter, at no extra cost.
The signal moves off chip to the image filter then back on to the mixer, which is a double-balanced differential mixer with an additional pre-amplifier at its input that boosts gain and improves noise figure.
14] proposed a weighted guided image filter (WGIF) for the problem that amplification of noise in sky regions is addressed for single image haze removal.
In this work, a new image filter is adopted to generate the base layer and detail layer.
A full-band image filter follows the LNA in the receiver cascade.
However, the active filter could find application as an image filter placed before a mixer if the filter is preceded by a low noise amplifier (LNA).
The three most expensive components are the duplex filter (where applicable), the image filter and the oscillator.
Packaged with an Advanced Image Filter processor, DVD Converter makes no compromise on quality.