SCANNING

How To Scan:

1.    Place image on the scanning screen

2.    Choose appropriate settings, according to the purpose of the image to be scanned

3.    Scan the image

4.     Scan is complete

Descreen

Descreening is a process used to reduce the moire patterns often associated with scanning. A moire pattern is when two identical patterns of lines, circles, or dots, are overlapped with imperfect alignment creating an interference pattern (resembles an optical illusion). This essentially destroys the scanned image. Descreen was then introduced to scanners to eliminate the moire pattern and also the colour shifting patterns. It allows the image to be restored to its original sharpness post scanning. The scanner I use at home automatically descreens the images.

Resolutions

·       For the web: 72-96dpi should be used

·       For printing: 150-200dpi should be used (however a test print should be used to clarify the best resolution for your printer as each one is different)

·       For presentations: 300dpi should be used

o   It should be kept in mind that the larger the dpi, the better the quality of the shot.