User`s guide

INDEX

Output | JPEG size reduction

You can use this option to write files with a reduced number of pixels. For instance, if

size reduction is set to 3, then every 3x3 block of pixels in the image will be written as a

single pixel, which is the average of these 9 pixels.

This option will reduce the resolution and size of the file produced. These values will be

displayed in the status area at the bottom of the VueScan window.

However, this option produces better results than reducing the resolution of the scan,

as the averaging of multiple pixels results in a similar noise reduction benefit as

multi-sampling. See Input | Number of samples (p. 59)and Input | Number of passes

(p. 59).

Advanced Option: This option is displayed whenOutput | JPEG file (p. 83) is set.

Output | JPEG quality

This option controls the quality of the JPEG file. Using 100 produces images with few

visible JPEG artifacts, and 50 results in images with noticeable artifacts, but with much

smaller sizes. The default value of 90 produces fairly small images with little visible

degradation in image quality.

Even at the highest quality, JPEG files are smaller than compressed TIFF files by as

much as 60%. This smaller size comes at the cost of loss of image information. If you

expect to be editing your scans produced by VueScan (e.g. in Photoshop(TM)), or are

digitally archiving your scans, JPEG is not a good choice. However, for web, email,

small size or inkjet printing, JPEG is by far more efficient and, at higher quality

settings, virtually indistinguishable.

Advanced Option: This option is displayed whenOutput | JPEG file (p. 83) is set.

Output | JPEG black/white

This enables writing the cropped and processed images to a monochrome JPEG file.

If you're working with black/white film, this will produce files that are smaller than color

files.

Advanced Option: This option is displayed whenOutput | JPEG file (p. 83) is set.

Output | JPEG profile

This specifies whether to embed an ICC color profile into the JPEG file. This is primarily

useful if you're using Photoshop(TM). You can specify the profile to use by

settingColor | Output color space (p. 75).

Advanced Option: This option is displayed whenOutput | JPEG file (p. 83) is set.

Output | PDF file

This enables writing the cropped and processed images to a PDF file when scanning.