The effect when a pattern of halftone dots or screen angles results in uneven color. Moire patterns do not appear on screen, but are the result of misaligned halftone screen angles or misregistration on press.
An undesirable pattern that occurs when screen patterns overlap due to incorrect screen alignment or angles
When two screens overprint each other, if they are not properly angled, a moire pattern can result. The moire pattern will look something like a checkerboard pattern or a regular pattern of halation throughout the screen.
An undesirable grid-like pattern caused by the misalignment of dots on a printed document. This can occur both when printing or sometimes when scanning from pre-printed material.
Moirè is an ugly circluar pattern that appears sometimes when you scan an already printed image. It is a result of the dots set at the same angle. Try scanning the print slightly tilted. If this doesn't work, add a 0,5 pt gaussian blur to the scanned image in photoshop.
A strobing pattern that occurs when the resolution of an image is not high enough display the fine details of an element within it. Occurs when photographing patterns such as grids.
Undesirable screen pattern in colour process printing caused by incorrect screen angles or half-tones.
A distinctive pattern produced by dot screen in reproduction. Often seen when half tone images are scanned.
An interesting but undesirable pattern which can appear in colour halftones, caused by incorrect screen angles of overprinting halftones. Common when copying a previously printed image. Moiré patterns can be eliminated or minimised with proper screen angles.
This unwanted pattern develops in colour printing when halftones, to be found in at least two colour, merge. This can be corrected by offsetting screen angling.
A moiré is an interference of two patterns. It generally has a checkerboard pattern to it. You get moiré's when using patterns on patterns - as you do when you put halftone dots on screen mesh and/or halftone dots on screen mesh on a shirt pattern. Moiré patterns can be reduced or even eliminated by using a different angle (see Angles) and using a higher mesh count in relation to the LPI of the halftone. The general rule of thumb has been that to reduce moiré patterns use a mesh that is 4 to 5 times the LPI. In example, when using a 50 LPI halftone, a mesh count of 200 would be a good start. There have been lengthy articles written about moiré.
An unwanted effect that appears in the video picture when a high-frequency pattern is looked at with a CCD camera that has a pixel pattern close (but lower) to the object pattern.
if you scan a halftone image, you will have moires on final output. Specifically, when scanning half-tone images (color and black and white) an undesirable chequered pattern or effect results on the final output. The is caused by misaligned or improper screen angles on the half-tone image.
An undesirable pattern in color printing, resulting from incorrect screen angles of overprinting halftones. Moiré patterns can be minimized with the use of proper screen angles.
The name for the spurious pattern caused by interference between two periodic structures in the image (e.g. a grid in the scene interfering with scanning lines or dot pattern in the camera), or caused by interference in a composite video signal between the color carrier and the luminance information.
Visual defect that occurs when the dots of the different separations used to create a halftone image are at unevenly spaced, conflicting or overlapping angles.
The result of superimposing half-tone screens at the wrong angle thereby giving a chequered effect on the printed half-tone. Normally detected during the stage of progressive proofs.
An unwanted effect that appears in digital scans of images.
An interference pattern created when two grids are unevenly spaced, conflicting or present overlapping angles. Visual artifacting occurs between the dots of the different color separations in halftone images.
