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Leadtools.ImageProcessing.Core Namespace
Summary
Overview and description of Leadtools ImageProcessing Core classes, delegates, enumerations, and structures.
Classes
| Class | Description | |
|---|---|---|
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AlignImagesCommand | Aligns two images (the reference and template images) based on the locations of the input points. The images are combined, creating the RegisteredImage. |
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AnisotropicDiffusionCommand | Performs a 2-Dimensional Anisotropic Diffusion filter on an image for reduction of varied patterned and non-patterned noise. |
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ApplyLinearModalityLookupTableCommand | Remaps the image pixels by applying a linear transformation described by a rescale slope and an intercept. |
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ApplyLinearVoiLookupTableCommand | Sets up the paint or paint and image processing methods window leveling options for a specific image through a linear transformation described by the window center and width. |
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ApplyModalityLookupTableCommand | Remaps the image pixels using a LookupTable (LookupTable). |
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ApplyTransformationParametersCommand | Corrects the image by removing the translation, rotation, and scaling deformations that have been applied to the image. |
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ApplyVoiLookupTableCommand | Sets up the paint or paint and image processing methods' window leveling options for a specific image through a lookup-table (LookupTable). |
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AutoBinarizeCommand | This function applies binary segmentation to a bitmap automatically. This class is available in the Document/Medical toolkits only. |
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AutoCropCommand | Trims the current image, removing blank space around the edges. |
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AutoCropRectangleCommand | Gets the rectangle to be used to trim the image if AutoCropCommand were used. |
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AutoDocumentBinarizationCommand | This function applies binary segmentation to a bitmap automatically. |
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AutoLineRemoveCommand | This class automatically detects and removes straight lines from document images. |
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AutoPageSplitterCommand | The AutoPageSplitterCommand automatically splits an image of two document pages that are side-by-side. |
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AutoSegmentCommand | Performs automated segmentation of a user-specified rectangular area in an image. |
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AutoZoningCommand | Detects different zones (Text, Graphic and Tables) in an image automatically. This is an important feature for OCR pre-processing to improve the recognition results. This function is useful for any application that needs to automatically separate images, tables and text within mixed raster content (MRC) images. |
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BarCodeReadPreprocessCommand | Detects the type of the barcode in the image, and binarizes (makes it black and white) the image in preparation for the recognition process. |
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BezierPathCommand | Returns a list of points that from a Bezier curve of the given points. |
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BlankPageDetectorCommand | Detects whether an image is a blank page. This command is available in the Document/Medical Toolkits. |
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BlurDetectionCommand | Determines whether an image is blurred. |
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BorderRemoveCommand | Removes the black borders in a 1-bit black and white image. This command is available in the Document/Medical Toolkits. |
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BorderRemoveCommandEventArgs | Handles each border found by BorderRemoveCommand. |
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BrightnessDetectionCommand | Finds the brightness amount in an image. |
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CLAHECommand | Adjusts the image contrast using the Contrast Limited Adaptive Histogram Equalizer (CLAHE) method, Which uses several histograms, each corresponding to a distinct section in the image, while limiting the amplification of the noise in the image. |
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ColorizeGrayCommand | Colors an 8, 12 or 16-bit grayscale image. The class changes the color bits/pixel of the image from the specified formats into 24-bit RGB format. |
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ColorizeGrayCommandData | The ColorizeGrayCommandData class contains information about gray color intensities (Threshold) and the associated colors (Color) used in the coloration methods of the ColorizeGrayCommand class. |
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ConvertSignedToUnsignedCommand | Converts a signed image to unsigned. |
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ConvertUnsignedToSignedCommand | Converts an unsigned image to signed. |
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CoreUtilities | Core utility class. |
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CorrelationCommand | This command compares the correlation image(or part of the correlation image) with all the areas of the same dimensions in the image to be searched (the Run method image) and finds those portions that match according to the measure of correlation. This command is available in the Document/Medical Toolkits. |
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CorrelationListCommand | Compares the images in a list with all the areas of the same dimensions in an image and finds those portions that match according to the measure of correlation. This method is only available in the Document/Medical toolkits. |
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DeskewCommand | Rotates the specified image to straighten it. |
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DespeckleCommand | Removes speckles from an image. Typically, this command is used to clean up scanned images (such as FAX images). This command is available in the Document/Medical Toolkits. |
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DicomLookupTableDescriptor | This is used by other structures to define a LookupTable (LookupTable) descriptor. |
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DigitalSubtractCommand | Subtracts the live image from the mask image to show the differences between the two images. |
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DiscreteFourierTransformCommand | Computes the Discrete Fourier transform of an image or the Inverse Discrete Fourier transform as specified by the flags. |
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DotRemoveCommand | Finds and removes dots and specks of various sizes. This method is available in the Document/Medical Toolkits. |
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DotRemoveCommandEventArgs | Handles each dot found by DotRemoveCommand. |
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ExpandContentCommand | Detects the boundaries of the document's content and expands it to fill the entire page space. |
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FastFourierTransformCommand | Computes the Fast Fourier Transform of an image or the Inverse Fast Fourier Transform as specified by flags. |
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FastMagicWandCommand | Updates a region through the ObjectRectangle and the ObjectData variables according to the color value at Xposition and Yposition. |
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FourierTransformDisplayCommand | This command is used to display the results of a Fast Fourier Transform or a Discrete Fourier analysis as an image. |
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FourierTransformInformation | The FourierTransformInformation class contains information about the complex 2D array that will hold the frequency components of the image. |
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FrequencyFilterCommand | Filters the frequency harmonics data produced by a Fourier Transform method using a range rectangle. |
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FrequencyFilterMaskCommand | Creates a mask filter to remove specific frequency components from the image. This command is available in the Imaging Pro and above toolkits. |
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GetLinearVoiLookupTableCommand | Gets the window center and the window width, if the LookupTable stored inside the image is linear. If the LookupTable stored inside the image is not linear, the command will fail. |
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GlareDetectionCommand | Automatically detects the glare zone in image. |
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GWireCommand | Performs semi-automatic segmentation by creating minimal paths that follow the boundaries of the objects in the image. |
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HalfToneCommand | Converts a 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, 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. |
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HalfTonePatternCommand | Creates a halftone screen effect for an image while keeping its continuous range of tones. This method is available in the Document/Medical toolkits. |
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HighQualityRotateCommand | Performs high quality rotation on a black and white image. |
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HolePunchRemoveCommand | Finds and removes hole punches. |
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HolePunchRemoveCommandEventArgs | Handles each hole punch found by HolePunchRemoveCommand. |
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ImageColorTypeCommand | This command investigate the image and return it's type whether colored, grayscale or black and white. |
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InvertedPageCommand | Checks and auto-corrects an inverted image. |
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InvertedTextCommand | Finds and modifies areas of inverted text in a 1-bit black and white image. |
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InvertedTextCommandEventArgs | Handles each inverted text segment found by InvertedTextCommand. |
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KaufmannRegionCommand | Sets a Kaufmann region based on the color value of the specified point in the enhanced image (KaufmannProcessedImage). |
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KeyStoneCommand | Performs inverse perspective transformation (keystoning) on an image. |
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KMeansCommand | Performs image segmentation and color reduction using the K-means algorithm. |
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LambdaConnectednessCommand | Performs image segmentation using a special region-growing algorithm called Lambda Connectedness. |
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LeadZone | Represents the class that is used to return the details about the detected zone. |
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LeadZoneTableData | Represents the class that is used to return the details about the detected table zone. |
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LeadZoneTextData | Represents the class that is used to return the details about the detected text zone. |
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LevelsetCommand | Performs semi-automatic segmentation (using the Levelset algorithm) by shrinking or expanding a contour represented by a region to the objects in the image. |
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LineRemoveCommand | Removes horizontal and vertical lines in a 1-bit black and white image. |
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LineRemoveCommandEventArgs | Handles each line found by LineRemoveCommand. |
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ManualPerspectiveDeskewCommand | Corrects the view perspective. |
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MaximumCommand | Erodes dark objects by the specified amount. |
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MeanShiftCommand | Performs a detail preserving noise reduction. |
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MedianCommand | Changes the color of each pixel in an image to the median color of pixels in its neighborhood. This is similar to the AverageCommand command, but it is used for noise reduction, rather than a blur effect. |
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MICRCodeDetectionCommand | Automatically detects a Magnetic Ink Character Recognition (MICR) zone in a document image. |
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MinimumCommand | Dilates dark objects by the specified amount.This command is available in the Document/Medical Toolkits. |
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MinimumToZeroCommand | Converts grayscale signed image to an unsigned one by shifting all the negative value of the image data, so the minimum negative value will be zero. |
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MinMaxBitsCommand | Gets the low and high bits of the values present in a 12 or 16-bit grayscale or a 48 or 64-bit color image. This class is available in the Medical Toolkits. |
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MinMaxValuesCommand | Gets the minimum and maximum intensity values present in a 12 or 16-bit grayscale or a 48 or 64-bit color image. This class is available in the Medical Toolkits. |
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MRZCodeDetectionCommand | Automatically detects a machine-readable passport (MRZ) zone in a document image. |
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MultiscaleEnhancementCommand | Enhances an image's contrast, edges, and density range for use in Computed Radiography (CR), in a way that all relevant image features are rendered with an appropriate level of visibility. This command is available in the Medical toolkits. |
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ObjectCounterCommand | Gets the number of black objects in a binary image. |
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ObjectCounterCommandEventArgs | Handles each object found by the ObjectCounterCommand. |
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OmrCommand | This class represents the OMR detection engine, which detects OMR marks and returns a value indicating whether the OMR is filled. |
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OtsuThresholdCommand | Performs image segmentation and color reduction using Otsu clustering on grayscale images. |
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PerspectiveDeskewCommand | Detects and automatically deskews a document in three dimensions. Usually used to correct perspective distortion (deskew) introduced by the camera’s perspective in relation to the subject (usually a document). |
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RakeRemoveCommand | Removes isolated Data Rakes in 1-bit black and white images. |
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RakeRemoveCommandEventArgs | Handles each rake found by RakeRemoveCommand. |
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RemoveSaltPepperCommand | Removes the salt and pepper noise from the specified image. |
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ResizeInterpolateCommand | Applies different kinds of algorithms on images to resize them into the desired size. |
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SearchRegistrationMarksCommand | Searches the image for the registration marks according to the information in SearchMarks. This command is available in the Document/Medical Toolkits. |
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SearchRegistrationMarksCommandData | Provides registration mark search information to the SearchRegistrationMarksCommand. The SearchRegistrationMarksCommand also stores information in this structure about the registration marks that it finds. |
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SelectDataCommand | Selects a specific number of bits of an 8, 12 or 16-bit grayscale image and puts them into a mask, then colors the image depending on the mask. This can show image variances depending on user-defined conditions. This command is available in the Medical toolkits. |
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ShiftDataCommand | Selects a specific number of bits from an 8, 12 or 16-bit grayscale image to create a mask and places the mask in a new 8, 12 or 16-bit grayscale image. This command is available in the Medical toolkits. |
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ShrinkWrapCommand | Performs automated segmentation of a rectangular or circular area in the specified image using the specified threshold. |
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SigmaCommand | Performs an edge preserving average filter on bitmap. |
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SignalToNoiseRatioCommand | Finds the signal to noise ratio (SNR) in an image. |
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SliceCommand | Extracts individual slices from a radiographic scanned film. This method is available in the Imaging Pro and above toolkits. |
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SliceCommandEventArgs | Handles each slice segment found by SliceCommand. |
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SmoothCommand | Smooths the bumps and fills in the nicks of a 1-bit black and white image. This command is available in the Document/Medical Toolkits. |
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SmoothCommandEventArgs | Handles each bump or nick found by the SmoothCommand. |
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SRADAnisotropicDiffusionCommand | Applies a 2-Dimensional Anisotropic Diffusion filter on an image in order to reduce noise and speckling. |
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StentEnhancementCommand | Performs a digital stent enhancement on a sequence of X-Ray frames.This enhances the visibility of the stent device in X-Ray angiography sequence of the coronary arteries. |
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SubtractBackgroundCommand | Removes the background from the image. |
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TADAnisotropicDiffusionCommand | An iterative filter that performs tensor-guided anisotropic diffusion in order to reduce noise while preserving the edges in the image. |
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TextBlurDetectorCommand | Finds in-focus and out-of-focus blocks in any image. |
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TissueEqualizeCommand | This function performs an Equalization between the Hard Tissue and the Soft Tissue in X-Ray Images. |
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UnWarpCommand | Removes the distortion in an image of a cylindrical object, as if removing a label from off of the cylinder and flattening it out. |
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WatershedCommand | Separates the image into different segments using the Watershed algorithm. |
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WindowLevelCommand | Converts a 12 or 16-bit grayscale image to an 8-bit grayscale or a 24-bit RGB image.This class is available in Medical toolkits only. |
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WindowLevelExtCommand | Converts a 12 or 16-bit grayscale image to an 16-bit grayscale or a 48-bit RGB image. This class is available in Document/Medical toolkits only. |
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ZeroToNegativeCommand | Converts a grayscale unsigned image to a signed image by shifting the image data to the negative side by the amount specified by the user. |
Structures
| Structure | Description | |
|---|---|---|
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Complex | The Complex structure contains a complex number representing a specific frequency component in Fourier Transform methods. |
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CountLookupTableColorsResult | Structure that contains LookupTable information used by the CoreUtilities class. |
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OmrZone | This class contains the detected OMR zone results. |
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StentEnhancementMarkers | A class that contains the locations of the detected stent markers in a frame of the sequence. |
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TransformationParameters | Structure that contains the rotation angle, XY scaling, and XY translation of the transformed image with comparison to the reference image. |
Delegates
| Delegate | Description | |
|---|---|---|
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BarCodeReadPreprocessCallback | A callback method that is used to process deblurred images generated by BarCodeReadPreprocessCommand object. |
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HolePunchRemoveCommandEventHandler | Represents the method that will handles each hole punch found by HolePunchRemoveCommand. |
Enumerations
| Enumeration | Description | |
|---|---|---|
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ApplyTransformationParametersCommandFlags | Enumeration that specifies the behavior when resizing the image.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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AutoBinarizeCommandFlags | Flags that determine the behavior of the Auto Binarize process. |
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AutoZoningOptions | Flags that determine the behavior of the auto zoning process. |
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BarCodeReadPreprocessOptions | Indicates the binarization method used for converting the image to black and white. |
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BarcodeTypes | Indicates the type of detected barcode in an image. |
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BlankPageDetectorCommandFlags | Flags that determine the behavior of blank page detection process. |
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BorderRemoveBorderFlags | Indicates which border to remove |
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BorderRemoveCommandFlags | Enumerated values that determine the behavior of the border removal process. |
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CLAHECommandFlags | Flags specifying the desired histogram shape for the image tiles. |
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ConvertSignedToUnsignedCommandType | Flag that indicates how the shift will be done when converting images. |
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ConvertUnsignedToSignedCommandType | Flag that indicates how to process bits outside the low bit to high bit range. |
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CountLookupTableColorsType | Flag that indicates whether the LookupTable contains signed or unsigned data. |
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DeskewCommandFlags | Flags that indicate whether to deskew the image, which background color to use, whether to deskew the image if the skew angle is very small, which type of interpolation to use, whether the image contains mostly text, and whether to use normal or fast rotation.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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DigitalSubtractCommandFlags | Flags that indicate the action to take after subtraction has occurred.These flags have a FlagsAttribute attribute that allows a bitwise combination of member values. |
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DiscreteFourierTransformCommandFlags | Flags that indicate the transformation type, operation channel, frequency data type used to reconstruct the image, the clipping type, the used or computed frequencies range, the operation on the specified X harmonics range , and the operation on the specified Y harmonics range.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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DitheringType | Represents the type of dithering in the image. |
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DotMatrixType | Represents the flag that determines whether a document image is dot matrix image or not. |
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DotRemoveCommandFlags | Flags that determine the behavior of the dot removal process. |
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FastFourierTransformCommandFlags | Flags that indicate the transformation type, operation channel, frequency data type used to reconstruct the image, and the clipping type.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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FourierTransformDisplayCommandFlags | Flags that indicate the data to be shown and the plotting scale.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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FrequencyFilterCommandFlags | Flags that indicate the operation to be performed on the specified X and Y harmonics ranges. This command is available in the Imaging Pro and above toolkits.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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GetLinearVoiLookupTableCommandFlags | Reserved for future use. Use 0 for now. |
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HalfToneCommandType | Enumeration that indicates the type of halftoning to perform. |
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HalfTonePatternCommandType | This enumeration contains the possible halftone patterns. |
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HighQualityRotateCommandFlags | Options for the HighQualityRotateCommand class. |
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HolePunchRemoveCommandFlags | Values that determine the behavior of the hole punch removal process. |
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HolePunchRemoveCommandLocation | Flag that indicates the location within the document of the hole punches to remove. |
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ImageColorType | This enumeration contains the various types that can be returned as a result to the image color type. |
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ImageColorTypeCommandFlags | Options for manipulating the behavior of image type detection. |
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InvertedPageCommandFlags | Options for the InvertedPageCommand class. |
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InvertedTextCommandFlags | Flags that determine the behavior of the inverted text removal process. |
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KMeansCommandFlags | Represents which initialization algorithm to use for the KMeansCommand. |
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LeadZoneType | Flags that determine the type of zone that the auto zoning command will detect. |
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LineRemoveCommandFlags | Flags that determine the behavior of the line removal process. |
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LineRemoveCommandType | Flag that indicates which lines to remove. |
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ModalityLookupTableCommandFlags | Indicates which color space is selected. |
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MultiscaleEnhancementCommandFlags | Flags that determine method behavior.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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MultiscaleEnhancementCommandType | Values that determine the type of filter used. |
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OmrFrameDetectionMethod | This enumeration represents the detection method used by the OMR engine. |
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OmrSensitivity | This enumeration represents the OMR detection sensitivity. |
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OmrZoneState | This enumeration represents the whether the zone is filled or not. |
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RegistrationMarkCommandType | Value that specifies the type of registration mark for which to look. |
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RegistrationOptions | Represents the type of transformation to be performed during registration. |
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RemoveStatus | Indicates the action to take during the removal process. |
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ResizeInterpolateCommandType | Represents the algorithm type used in resizing the image. |
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ShrinkWrapFlags | Represents the flags used in the shrink wrap tool. |
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SliceCommandFlags | Flags that indicate whether to deskew the sliced image, which type of interpolation to use when rotating, and whether to cut the slice from the original image. |
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SmoothCommandBumpNickType | Enumerated values that indicate whether to remove bumps or fill in nicks. |
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SmoothCommandDirectionType | Enumerated values that indicate whether the element being smoothed is vertical or horizontal. |
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SmoothCommandFlags | Enumerated values that determine the behavior of the smoothing process. |
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SubtractBackgroundCommandFlags | Flags that indicate whether the background is darker than the foreground, and whether to show the objects without the background. You must select one from each group.This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values. |
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SubtractBackgroundCommandType | Enumerated values that represent the shrink size ratio used to minimize the image internally in order to increase the speed with little loss of accuracy. |
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TADAnisotropicDiffusionFlags | Represents which type of flux to use when applying the Tensor-guided Anisotropic Diffusion filter. |
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TextType | Flags that determine the orientation type of the text inside the table zone. |
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TissueEqualizeCommandFlags | This enumeration contains the options for performing Tissue Equalization on an image |
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VoiLookupTableCommandFlags | This enumeration contains all Types needed to indicate which color space is selected. |
