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Products : Software : Scan Clients : Twin Scan

TwinScan, a scan client for Windows 2000/NT 4.0/XP (Win 98 optional), is available in three versions (bitonal, greyscale and colour) for scanning and storing different image types depending on the type of scanner connected.

The project management implemented supports individual definition of scan and image storage parameters for each project. This dramatically reduces the chance of operator errors when defining parameters. The ‘modify scan parameters’ option in the scan menu window can be disabled for individual projects. Scanning different document types in the same project is easily accomplished by loading different project specific scan profiles. This feature obviates the need to modify any parameters.

It is easy to define the image storage path for scanned images. Image names can be created using the document number that is generated by the system. The same name is used for all images for a document. If more than one image is generated for a document appropriate pre- and suffixes are appended to the number. Apart from the entire image for each image type (bitonal, greyscale, colour image of the front and back) up to eight sub-images can be cut online and saved to disk for subsequent processing. Sub-image names receive an additional suffix to clearly identify these images as specific sub-images. The names always contain the document specific unique number. The number of documents (pages) saved into one subdirectory can be limited. When reaching the maximum number of pages specified for a subdirectory within a scan session, the program automatically switches to the next subdirectory. Switching to a new subdirectory can be made subject to confirmation by the operator. This gives the option that, under certain circumstances, the maximum number of pages (sheets) allowed per subdirectory may be exceeded. The operator can always manually switch to the next subdirectory.

For managing post-processing jobs (i.e. image enhancement, OCR/ICR) and for data transfer of scanned images to an image server, mechanisms are available based on flag files. Each document subdirectory contains a file called index file that contains all image information available at scan time, such as:

image path and name, scan date and time, image width and height, resolution, compression type, simplex/duplex, endorser number, operator`s name, project name, name of the active scan profile, patch code type, sub-page number.

The endorser, optional with all SCAMAX scanners, is fully supported. The sequential number used can be reset to a pre-defined number at the beginning of a new workday or when saving into a new subdirectory. Besides the sequential number the actual date and time may be printed. The string to be printed may be up to 80 characters long and is freely definable.

The DTplus threshold board, which is optional with SCAMAX bitonal scanners, is fully supported by TwinScan. Threshold settings can be set during the scan process via hotkeys to achieve optimum quality of scanned images. Parameters for the fixed and DTplus thresholds are defined individually for each project, unless default values are used.

To assist indexing at a later stage, index information can be entered for each batch (subdirectory) after the first page has been scanned. Up to eight fields can be defined, the contents of these fields will be written into an ASCII file in the current subdirectory. Using this mechanism, the name of the current subdirectory can be modified by entering an index at this stage. In this case only one parameter, the name of the batch, can be entered.

An optional interface to Paradatec`s OCR/ICR-Module PROSAR is available. This interface generates job files for the OCR at scan time. It will automatically start the OCR process for a particular batch when the relevant subdirectory is closed. The parameters needed for the OCR jobs are defined individually for each project. The OCR can run on either the scan server or an OCR server in the network. Multiple scanners can feed one OCR server in the network.

Paper formats can be defined, modified and removed in an easy to use format editor. The maximum format sizes that can be defined depend on the RAM installed. A minimum of 256 MB RAM is required to run TwinScan.

For Quality Control purposes up to four images can be displayed simultaneously during scanning (bitonal, greyscale, colour of front and back).

Three different versions of TwinScan are available:

  • TWS-B - bitonal version for scanning and storing bitonal documents
  • TWS-G - greyscale version for scanning and storing bitonal and greyscale documents simultaneously
  • TWS-C - colour version for scanning and storing colour images. In the near future this version will be able to store greyscale and bitonal images from a colour document. This future version will also contain electronic colour filters (colour drop-out) and the option to store areas marked by certain colours into sub-images.

The following compression types are available:

  • For bitonal images: uncompressed, TIFF G3, TIFF G4, PDF
  • For greyscale & colour images: uncompressed, JPEG, PDF