Pictures and logos
Scanning pictures and logos
There are different methods for scanning logos, photographs and printed images…
Scanning images for printing in newspapers or magazines is a highly technical process and something of an art. It should really be left to the professionals. However, if your scanner is suitable for professional print quality scanning (most are not), you will need to read the instructions carefully and learn how to set up the hardware and software to produce correctly calibrated scans which will match the characteristics of the press on which your work will be printed.
Print quality scans contain far more pixels than internet quality images, which also means far more memory is used per image. You need to scan at 300 dpi (dots per inch) for print and only 72 dpi for the internet. Internet images are scanned in RGB. Images for print are scanned in CMYK mode for colour and greyscale for mono.
You will need to set up the descreen option when scanning printed images from brochures and magazines (descreen usually set to 130). This is required to adjust your scanner to soften the dots used to print the image originally and to prevent unsightly moiré patterns appearing when printing your version of the image. Descreening is not required when scanning photographs because they are solid images.
Finally, when scanning black and white logos, you will need to set the scanner for line art. Line art images are normally scanned at a higher resolution (up to 1200 dpi) to give you a high quality image
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