Anti-aliasing
Techniques Glossary Anti-aliasing
A method of smoothing out pixels' jagged edges using software.
Anti-aliasing
Anti-aliasing makes the edges appear much smoother by averaging out the pixels around the edge.
Anti-aliasing
The process of reducing stair-stepping by smoothing edges where individual pixels are visible.
Archival Quality
Suitable for long term stotage.
Anti-aliasing. A process that smoothes the rough edges or jaggies in images by creating partially transparent pixels along the boundaries that are merged into a smoother line by our eyes. See also jaggies.
Anti-aliasing - A process used to remove the stair stepping effect found in diagonal lines of an image. Involves inserting dots of an in-between tone along the edges.
Array - A grouping of elements such as sensors.
Anti-Aliasing - Smooths out hard edges in a drawing by blending colors. This is especially apparent when applied to text.
anti-aliasing
The process of reducing artifacts by interpolating intermediate colors perpendicular to an aliased edge.
aperture mask ...
Anti-Aliasing
A process that filters or softens the hard stair-stepped edge (and thus removes the Jaggies) in bitmapped images by creating a series of gradually blending pixels.
Anti-Aliasing Filter (AA Filter)
This is an optical filter (also known as low-pass filter) placed on the sensor to create a slight blur or softening that helps counteract aliasing or moiré interference.
ANTI-ALIASING - Smoothing the edges of objects in a digital image to reduce the appearance of "stair steps".
ANTI-SHAKE - Technology that combats a lens's movement caused by camera shake to reduce blur in an image.
anti-aliasing
the removal or softening of image rough edges (jaggies) by averaging or blending of surrounding colors.
Anti-Aliasing Filter; used in front of camera's image to reduce moire effects.
AC Adaptor
Converts AC Mains power to low-voltage DC for camera; very useful for prolonged indoor photography. The writer considers it a "must" for any digicam.
Figure 5: Anti-Aliasing
Comparing Figures 6 and 7 shows how interpolation actually reduces the jaggies. Figure 6 shows the original 500% enlargement (the image simply enlarged on the screen, not interpolated).
In contrast, anti-aliasing refers to more refined edges in an image. The process of anti-aliasing calls for an exchange of colors within a pixel at the edge of the figure to smooth the pixels' squareness.
See jaggies and anti-aliasing.
standard
A technology, format or method ratified by a respected authority.
Moiré artifacts can be mitigated by a strong 'in camera' anti-aliasing filter and in software post processing. However, strong in camera anti-aliasing filters can soften the entire image so much that some of the finer image detail is lost.
'The Ails of Typographic Anti-Aliasing' - Tom Giannattasio
'Mastering Photoshop: Noise, Textures and Gradients' - Marc Edwards
'Better User Experience With Storytelling' - Francisco Inchauste ...
Computer software that performs this function is commonly known as an "anti-aliasing algorithm".
The new problem then was that the digital sensor and the anti-aliasing filter in front of it did not reflect light the same way traditional film does.
This is also a good time to consider using some sort of noise reduction on the image. Anti-aliasing color works best at the full resolution of the image. See my anti-aliasing color tutorial for more.
Rotating/Cropping ...
Angle of View See Picture Angle. Anti-Aliasing An optical process that samples the edges of an image to fill in the missing areas that cause a jagged appearance.
In most current consumer digital cameras, a Bayer filter mosaic is used, in combination with an optical anti-aliasing filter to reduce the aliasing due to the reduced sampling of the different primary-color images.
AA Filter - Most Digital SLR's have a "Low Pass Filter" (LPF) or AA (Anti-Aliasing) Filter in front of the CCD or CMOS sensor. This helps to eliminate colour aliasing problems, or the "moire" effect.
Most digital SLR cameras employ a Low Pass Filter (LPF) or Anti-Aliasing (AA) filter in front of the imager to help eliminate color aliasing (moire) problems
Lossy ...
This can sometimes occur since all graphics consist of individual pixels. Anti-aliasing reduces this unwelcome effect by recalculating the contrast values of the neighbouring pixels and matching them up with each other.
Since the RAW conversion also involves anti-aliasing (for color interpolation), the image needs sharpening anyways. Once the image has been sharpened (by the RAW converter), I try not to perform any unnecessary interpolation in Photoshop.
Low Pass Filter - Most digital SLR cameras employ a Low Pass Filter (LPF) or Anti-Aliasing (AA) filter in front of the imager to help eliminate colour aliasing (moire) problems.
The process by which smooth curves and lines that run diagonally across the screen of a low-resolution digital file take on a 'jagged' look as opposed to a smooth, natural rendition. Smoothing and anti-aliasing techniques can reduce the effect of ...
I put the black layer above the white layer then changed the opacity of the white layer to about half. In the full size 'print' version of this picture the lines look quite realistic, but the anti-aliasing doesn't work too well on the screen size ...
 See also: Aliasing, Image, Digital, Photograph, Software
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