Bio-Rad EXQuest Spot Cutter - Manual (Page 44)

General Operation
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2. 16-bit Grayscale. Bio-Rad’s Molecular Imager (storage phosphor) systems use
16-bit pixel values to describe intensity of scale. Molecular Dynamics
™ imagers
also use 16-bit pixel values. The Discovery Series understands these formats and
can interpret images from both Bio-Rad and Molecular Dynamics storage
phosphor systems.
Note: PDQuest can import 8- and 16-bit TIFF images from both Macintosh and PC
platforms. PDQuest cannot import compressed images.
TIFF files that are not supported include:
1. 1-bit Line Art. This format is generally used for scanning text for optical
character recognition or line drawings. Each pixel in an image is read as either
black or white. Because the software needs to read continuous gradations to
perform gel analysis, this on-off pixel format is not used.
2. 24-bit Full Color or 256 Indexed Color. These formats are frequently used for
retouching photographs and are currently unsupported in the Discovery Series,
although most scanners that are capable of producing 24-bit and indexed color
images will be able to produce grayscale scans as well.
3. Compressed Files. The software does not read compressed TIFF images. Since
most programs offer compression as a selectable option, files intended for
compatibility with the Discovery Series should be formatted with the
compression option turned off.
Export Image as TIFF
The Reports>Export to TIFF dialog box contains the settings for exporting a Raw 2-D
scan, Filtered image, or Gaussian image in TIFF format.