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- SELECT THE FOLLOWING OPTIONS
-
- INPUT..............Enter the source of the image to be processed. This may be
- either directly from your scanner (if it is one of the supported types) or an
- intermediate image file produced by your scanner software. To select direct
- scanning, enter the word "SCANNER" here. To select a file, enter the name of
- the image file produced by your scanner software. Currently supported types
- are TIFF (both compressed and uncompressed) and PCX (PC Paintbrush) files.
- Be sure to include the extension in the file name (i.e. .TIF or .PCX) so that
- PRO-CR(tm) can determine the file type. For the case of PCX files, it is
- necessary for you to set the resolution that the image was scanned at (since
- the majority of PCX producing software does not include this in the file).
- Use the "dpi" option to set this.
-
- OUTPUT.............Enter the name of the file you wish PRO-CR(tm) to write the
- ascii text into. Note that PRO-CR(tm) will create the specified file if it
- does not already exist and will append text to the specified file if it does
- exist.
-
- #
- Options (continued)
-
- DPI................Enter the resolution in dots per inch. There are 2 cases
- when this is important. (1) When you are scanning directly. This tells the
- scanner what resolution to scan at. (2) When you are processing an image file
- and the file does not contain the image resolution. This is always true of
- PCX files and is sometimes true of naughty TIFF files. (It is rare for TIFF
- software to omit the resolution and you may assume it is present unless
- PRO-CR(tm) warns you otherwise. Never assume a PCX file contains the image
- resolution though!).
-
- Knowing how to set the right dpi for DIRECT SCANNING:
- PRO-CR(tm) has been written to run best at 200 to 300 dpi. 200 dpi
- covers the fax standard and most hand scanners. (Some popular hand
- scanners claim 300 and 400 dpi modes, however many simply duplicate
- pixels to match printer resolutions and therefore add no more information
- to the scan for OCR purposes). For reasonably sized text 200 dpi should
- be adequate, but if the text is tightly spaced (runs together) then 300
- dpi should help. PRO-CR(tm) allows a range of 100 to 400 dpi for
- experimentation purposes. In general, try 200 dpi first and then 300.
-
- #
- Options (continued)
-
- UNKNOWN CHAR.......Enter the character you wish to be embedded in the output
- text to flag characters that could not be recognized. This is useful if you
- use an editor after the recognition phase to correct mis-recognitions. It
- allows you to search for this character to speed up the correction phase.
- Use of a spelling checker should also prove helpful.
-
- PREVIEW............This function is active if a check mark appears next to it
- in the menu. The function is toggled on and off by repeatedly selecting it.
- When active, as much of the image as can fit on the screen in displayed prior
- to being processed. This is useful to examine the quality of the scan, for
- skewed paper, lack of contrast, suitable resolution etc. This function is
- only available for users with a suitable graphics adapter.
-
- #
- Options (continued)
-
- CORRECT............This function is active if a check mark appears next to it
- in the menu. The function is toggled on and off by repeatedly selecting it.
- When active, you will be allowed to correct mis-recognitions online during the
- OCR processing phase. You will be prompted for the correct character(s) when
- a mis-recognition occurs. At the lower right hand side of the screen an image
- of the mis-recognized character(s) will appear for you to correct. If you are
- unable to recognize the text, hit return and the text will be replaced by the
- "unknown" character mentioned above. You may also hit Escape to abort the
- processing. This function is only available to users with a suitable graphics
- adapter.
-
- SCANNER TYPE.......Select your scanner type from the list. At the time of
- writing (4/16/90) only the HP ScanJet is directly supported, however the
- Logitech SCANMAN is planned shortly.
-
- #
-
-