8.4

printable character in the BarcodeValue and Barcode_x_Value metadata fields, while the original
barcode value (i.e. with non-printable characters)will beavailable in the BarcodeBase64_x_value
metadata field. This option allows only one printable replacement character. By default, this character
is an empty space.Note: Non-printable characters are the first 32 characters in ASCII character table
(Ex.: form-feed, newline, carriage return characters)
l Scan Interval: Set a scan interval in pixels of image scanning. This property directly affects the
performance and quality of the recognition. A greater interval value means better performance, but a
lower recognition confidence level, and vice versa. For example, a value of 1 means that every image
line will be scanned. By default, the Scan Interval is set to 1.
l Threshold level [0..255]: Set to represent the color threshold level in order to distinguish foreground
pixels from background pixels in color or gray scale images. Value can be between 0 and 255,
corresponding to the pixel intensity value, from 0 (black) to 255 (white). Therefore, defining a threshold
value of 128 means that the pixels with an intensity greater than 128 will be considered as white, while
those less than 128 will be considered black. The value 0 means that the color threshold level will be
calculated automatically depending on the image. By default Threshold level [0..255] is 0. This
parameter is ignored with binary images (black and white images).
On Error Tab
The On Error Tab is common to all tasks. Details can be found on " Task Properties Dialog" on page 584.
By default, any action task, branch, splitter or condition that generates an error will simply be ignored, and
the task just under it (not within a branch)will be given control of the job file without any modification. Any
initial input task that generates an error will stop the process from running as a whole, and output tasks will
not generate output. The On Error tab can be used to overwrite the default behaviors.
l Send to Process: Check this option to send the job file to an error management process.
l Error Process drop-down:Enabled only when the Send to Process option is checked. Lists any
process of which the initial input task is the Input Error Bin task.
l Action Group:This group is disabled in the initial input tasks and defaults to Stop Process. In all
other tasks where the On Error tab is present, the following options are available:
l Ignore:The task is ignored as if it did not exist, and the job file is passed on to the next task in
the process.
l Stop Branch:If the task is in a branch of the process, the branch is stopped and the job file is
returned to the process after the branch. The branch will not produce any output.
l Stop Process:The process is stopped and no more processing is done. No further output is
produced.
l Log Message:Check this option to enable logging a custom error message in the PReS Suite
Workflow Tools' log file.