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/jag'eez/ (Or "staircase") The "staircase" effect observable when an edge (especially a linear edge of very shallow or steep slope) is rendered on a bitmap display (as opposed to a vector display). The effect is even more pronounced when a bitmap image or text in a bitmap font is enlarged. Outline fonts and anti-aliasing are two techniques used to solve this problem with text.
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(1) See alias.

(2) In computer graphics, aliasing is the stair-stepped appearance of diagonal lines when there are not enough pixels in the image or on screen to represent them realistically. Also called "stair-stepping" and "jaggies." See anti-aliasing.

Low and High Resolutions
A low-resolution image showing the stair-stepping is on the left. The higher-resolution version is on the right.
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References in periodicals archive ?
You can rotate titles and shapes, apply gradient shading, set transparency, and perform anti-aliasing to eliminate the jaggies. It's easy to adjust any image's brightness, contrast and color balance.
get a fan ps deal, If so it' K ma cos again was wh a bag of jag "I looked at young Keith Watson after he made the mistake that cost us one of the goals against St Mirren and he what we call in football jaggies. He was full of nerves for the next 10 minutes and that wasn't as a result of getting shouted at by the bench I can assure you.
However, Martin Charlesworth levelled for the Jaggies in 54 minutes and Charlie Brown made it 2-1 on the hour.