A scanner's capability to capture dynamic range is governed by the bit depth used an output as well as system performence. the higher the pixels per inch(ppi), the longer it takes to scan the slide. to ensure a high quality scan, you ought to predetermine the scanning resolution and dynamic range required by the image. the scanning resolution should not be greater than the resolution of the display unit, which is usually 640*480 pexels.
when scanning images to be incorporated into a multimedia application, you should usually scan at a resolution between 300 and 600 dpi.
for exporting the scanned image into a multimedia application, you must change its resolution to 72 dpi.
different types of scanners have different resolution. for example: a flatbed scanner can scan at 300 to 400 dpi. high-end hand scanner offer 600 to 1200 dpi resolutions.
lowering the resolution while scanning adn increasing it later will delete some original colour resolution information and resulting image will not be as sharp as the original.
when scanning images to be incorporated into a multimedia application, you should usually scan at a resolution between 300 and 600 dpi.
for exporting the scanned image into a multimedia application, you must change its resolution to 72 dpi.
different types of scanners have different resolution. for example: a flatbed scanner can scan at 300 to 400 dpi. high-end hand scanner offer 600 to 1200 dpi resolutions.
lowering the resolution while scanning adn increasing it later will delete some original colour resolution information and resulting image will not be as sharp as the original.
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