Image Cleanup Parameters | Horizontal Registration Tab - CAPTUREit - Foundation 23.1 - Foundation 23.1 - AnyDoc - external

CAPTUREit

Platform
AnyDoc
Product
CAPTUREit
Release
Foundation 23.1
License

Normal Registration zones should be used if possible, but the registration options in the Image Cleanup parameters can be used if there are no reliable registration points available on the form for Registration zones. See Registration Zones.

The Horizontal Registration options locate the left edge of the text and position the left edge of the image a specified number of pixels from the edge of text (or data).

When using registration, we recommend that you activate Deskew, unless you know the original is perfectly straight. You can activate and set the Image Cleanup parameters for Horizontal and Vertical Registration separately.

For applications where precise text location is important, activate both Horizontal and Vertical Registration.

Option

Description

Resultant Left Margin

Determines how many pixels remain as a left margin after processing. Setting the value to 0 places text flush with the left or top edge of the image. A negative value crops the specified number of pixels from the left edge of the text.

Central Focus

Causes only the middle portion of the image border to be registered. Central focus is useful for ignoring edge noise, letterheads and logos.

Add Only

Causes the current margin (if it is smaller than the specified value) to be expanded to the size specified in the Resultant left margin parameter.

Ignore Holes

Activating Ignore holes causes binder holes to be ignored and other left-edge noise when analyzing the margin. Leave this feature off unless you have holes or similar noise to avoid.

Horizontal Register to Line

Option

Description

Horizontal Register to Line

Powerful feature for precise registration on forms, especially on forms with edge noise. Instead of using what it believes to be the edge of the text, this option will instead position the text in the image based on the position of a vertical line. This line should be significantly larger than any text characters (in particular, those characters to the left of this line).

Minimum Line Length

Set this parameter to a value larger than the height of characters but less than the length of the line to register on. The image will be examined from left to right, until a vertical line segment larger than the specified value is located, or until one quarter of the image width is reached. The image is then shifted so that the line is the distance from the left edge of the image as specified by Resultant left margin. Setting the value to 0 deactivates this feature.

Maximum Line Thickness

Scans across the image looking for lines. In some cases, this option can mistake dense text for a line. This parameter lets you select the maximum thickness to consider when registering to a vertical line, so you can set the maximum line thickness lower than the width of the text.

Maximum Line Gap

If the value is under 3 this option simply ignores short gaps. However, setting this value over 3 tells Maximum line gap to employ special algorithms. These algorithms re-assemble broken lines into a whole line for registration purposes, and can dramatically improve the success rate with this feature.

Horizontal Registration Skip

Option

Description

Horizontal Registration Skip

Select this check box to skip a set number of scan lines. The skip feature is particularly valuable for dealing with unwanted data on the edge of an image. In some cases, you may want to skip over a form line or margin note that can be seen as valid data. In other cases, this feature can be useful to skip over scanner artifacts that look like lines or data.

Distance

Specify the number of scan lines to skip before this option starts looking for valid information for registration.