User guide

Quantity One User Guide

2-10

You can also open images captured by other Discovery Series software and

Multi-Analyst™ software.

The application comes with a selection of sample images. In Windows, these

may be found in the Discovery Series/Sample Images/1D directory. On the

Macintosh, they are stored in the Sample Images folder in the Quantity One

folder.

Opening TIFF Images

The Open command can also be used to import TIFF images from other

software applications.

There are many types of TIFF formats that exist on the market. Not all are

supported by the Discovery Series. There are two broad categories of TIFF

ﬁles that are supported:

1. 8-bit Grayscale. Most scanners have an option between line art, full color,

and grayscale formats. Select grayscale for use with the Discovery Series

software. In a grayscale format, each pixel is assigned a value from 0 to

255, with each value corresponding to a particular shade of gray.

2. 16-bit Grayscale. Bio-Rad’s Molecular Imager (storage phosphor) and

Fluor-S imaging systems use 16-bit pixel values to describe intensity of

scale. Molecular Dynamics

™

and Fuji

™

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: The program can import 8- and 16-bit TIFF images from both Macintosh

and PC platforms.

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