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, Photoshop plug-in and image processing.


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, the original photo (top) was enhanced. Instagram includes a variety of image filters that users can choose before sending and posting their photos to social media.
References in periodicals archive ?
The MAD of the image is a robust statistical scheme and was previously used to tune image filter based on the gradient of the noisy image [7].
(2) For intensity (illumination) layer, estimating the illumination component with guided image filter in gradient domain, followed by extracting the reflection component
Guided Image Filter. GIF filters the input image by considering the guidance image.
The characterization was primarily carried out using a JEOL 3010 high resolution electron microscope (JEOL, Peabody, MA), equipped with a Gatan Image Filter (with parallel EELS) and a light element EDS system.
China Table I PSNR for compression of Lenna, Barbara, Boat, and Goodhill Image Filter 8:01 16:01 32:1 Bi9/7 35.84 31.67 27.37 Barbara GHM 36.07 31.64 27.97 CL 36.36 31.71 28.08 SOM 36.43 32.209 28.33 Bi9/7 -- -- -- Boats GHM 37.75 33.87 29.73 CL 37.71 33.95 29.86 SOM 38.06 34.301 30.238 Image Filter 8:1 16:1 32:1 Bi9/7 35.24 32.2 29.46 Goodhill GHM 35.8 32.35 29.87 CL -- 33.12 30.58 SOM 36.43 33.211 30.473 Bi9/7 39.55 36.62 33.31 Lenna GHM 40.14 37.7 33.3 CL 40.46 37.13 34.278 SOM 40.64 37.791 34.478
The guided filter which is a local-based image filter has the potential to minimize the overlap spatial detail information between the intensity information (INT) and PANI.
The power of box filtering is one can write a general image filter that can do sharpen, emboss, edge-detect, smooth, motion-blur, etcetera.
Kamei, "Image filter design for fingerprint enhancement," in N.
In this paper, we proposed a hardware-in-the-loop (HIL) simulation based evolutionary design method of image filter. The EA runs in MATLAB/Simulink, while the fitness evaluation which is the most time consuming part, is implemented on hardware.
Sato's [24] group proposed a 3D multiscale liner image filter to extract the critical property in medical images.
Wales had earlier made a call for the foundation to implement a personal image filter in May 2011 and the Board of Trustees unanimously voted 10-0 in favor of the filter.
Finally, the guided image filter is used to eliminate the blocking artifacts induced by the dark channel and remove the halos caused by the DT-CWT, while preserving the edge information of the original image.