Functions Available in Document Image Processing

Deskew

Rotates the specified image to straighten it. This function typically is used to automatically straighten scanned images.

Deskew Check

The Deskew Check function rotates a specified bank check image to straighten it. This is especially useful for correcting alignment errors during automated check scanning. This function is intended for bank check images that are mainly horizontal lines of text. The results are less predictable with other types of images.

Blank Page Detector

Scanned image can contain blank (empty) pages. This function determines whether the scanned image is a blank page or not. It detects noisy, bleed through, and lined blank pages with high precision and speed, and provides the likely percentage accuracy of the result. This function helps to reduce disk storage requirements for scanned images.

Smooth

Finds and smoothes the bumps and fills in the nicks of a 1-bit black and white image.

Border Remove

Finds and removes the black borders in a 1-bit black and white image.

Dot Remove

Finds and removes dots and specks of various sizes.

Line Remove

Finds and removes horizontal and vertical lines in a 1-bit black and white image.

Hole Punch Remove

Finds and removes hole punches.

Inverted Text

Finds and modifies areas of inverted text in a 1-bit black and white image.

Anti Alias

Applies an anti-aliasing filter to the specified image.

Half Tone

Converts an image with any resolution to a halftoned image, with a specified pattern rotation.

Halftone Pattern

Creates a halftone screen effect for an image while keeping its continuous range of tones.

Color Halftone

Converts a 1-, 4-, 8-, 16-, 24-, or 32-bit image to a halftoned image, with a specified pattern rotation. A halftoned image is a 1-bit image that has been dithered for black and white printing or display.

Search Registration Marks

Searches the image for registration marks.

Is Registration Mark

Apply Transformation Parameters - Corrects a deformed image according to the transformation parameters values the returned from the Get Transformation Parameters function. Get Marks Center Mass - Finds center of mass points for the registration marks. Get Transformation Parameters - Computes the rotation angle, XY scaling, and XY translation of the transformed image with comparison to the reference image. Is Registration Mark - Check whether the object inside the image is a registration mark or not. Search Registration Marks - Searches the image for registration marks.

Get Transformation Parameters

Computes the rotation angle, XY scaling, and XY translation of the transformed image with comparison to the reference image

Get Marks Center Mass

Finds center of mass points for the registration marks

Apply Transformation Parameters

Corrects the deformed image according to the transformation parameters values the returned from L_GetTransformationParameters

Correlation

The correlation is a measure of association (resemblance) between two images to find those portions that match according to the measure of correlation

Correlation List

Compares the images in list with all the areas of the same dimensions in original image and finds those portions that match according to the measure of correlation.

Minimum Filter

Dilates dark objects by the specified amount.

Maximum Filter

Erodes dark objects by the specified amount.

Median Filter

Changes the color of each pixel in an image to the median color of pixels in its neighborhood.

User Filter

Apply filtering on the image based on specified user defined mask coefficients.

Invert

Inverts the black and white colors in the document

Magic Wand

Sets a region based on the color found at point x, y in the image

Create Color Based Region

Creates a region based on range of image colors.

Direction Edge Statistical

Detects the variation of colors in the specified direction using statistical indices

Edge Detect Statistical

Detects edges by examining the variation of colors in all directions using statistical indices.

Edge Detector

Applies the specified edge filter to the specified image.

Edges Detect Effect

Detects the edges in an image and their strength.

Contour Filter

Performs a contour segment filter on the source image.

Binary Filter

This filter imposes a binary filter on an image. It performs a user defined effect by using suitable mask.

Get Histogram

Show the color frequencies in the image.

Get Bitmap Statistics Information

Returns statistical indices about the image

Dynamic Binary

Binarize an image by using a different threshold value for each pixel of the image

Auto Binary Segment

Applies binary segmentation to the image using an automatically calculated threshold based on a two-peak method of statistical analysis of the histogram

Skeleton

Thinning objects/regions in an image

Intensity Detect

Divides the image into binary segments according to specified thresholds.

Get Object Information

Determines the position, orientation and roundness of the object in the image

Get Region Contour Points

Returns the contour coordinates of a region

Get Region Perimeter Length

Computes the perimeter size of a region

Get Ferets Diameter

In microscopy, Feret's diameter is the measured distance between parallel lines that are tangent to an object's profile and perpendicular to the ocular scale. Generally, Feret's diameter is the greatest distance possible between any two points along the

Region Holes Removal

Removes all the holes in region. Makes the region contiguous.

Resize Region

Resizes an image region by the specified number of pixels.

Shear

Moves the corners of an image in the fashion of a parallelogram.

Resize-Interpolate

Resizes the image to a new width and height based on advanced interpolation methods.

Reverse

Reverses the specified image (left to right) to produce a mirror image.

Rotate

Rotates an image by the number of degrees specified.

View Perspective

Rotates and flips the image data as necessary to achieve the desired view perspective.

Flip

Flips a specified image from top to bottom.