Class OcrInput

Stores OCR input data and allows OCR of PDF documents or any image format.

Also provides various image filter methods which can improve OCR accuracy.

Inheritance

System.Object

OcrInputBase

OcrInput

Implements

System.IDisposable

Inherited Members

OcrInputBase.Finalize()

OcrInputBase.Dispose()

OcrInputBase.SaveAsImages(String, AnyBitmap.ImageFormat)

OcrInputBase.HighlightTextAndSaveAsImages(IronTesseract, String, ResultHighlightType)

OcrInputBase.FindTextRegion(Double, Int32, Boolean, Boolean)

OcrInputBase.FindMultipleTextRegions(Double, Int32, Boolean, Boolean)

OcrInputBase.StampCropRectanglesAndSaveAs(Rectangle[], Color, String, AnyBitmap.ImageFormat)

OcrInputBase.StampCropRectangleAndSaveAs(Rectangle, Color, String, AnyBitmap.ImageFormat)

OcrInputBase.StampCropRectangle(OcrInput, Rectangle, Color)

OcrInputBase.StampCropRectangles(OcrInput, Rectangle[], Color)

OcrInputBase.ApplyMultipleFilters(OcrFilters, Double, Int32, Int32, Int32, Boolean, Nullable<Int32>)

OcrInputBase.WithTitle(String)

OcrInputBase.Scale(Int32, Boolean)

OcrInputBase.EnhanceResolution(Int32)

OcrInputBase.AdaptiveThreshold(Nullable<Single>)

OcrInputBase.Rotate(Double)

OcrInputBase.Binarize()

OcrInputBase.ToGrayScale()

OcrInputBase.Sharpen()

OcrInputBase.ReplaceColor(Color, Color, Int32)

OcrInputBase.SelectTextColor(Color, Int32)

OcrInputBase.SelectTextColors(IEnumerable<Color>, Int32)

OcrInputBase.Contrast(Single)

OcrInputBase.DeNoise(Boolean)

OcrInputBase.Despeckle(Boolean)

OcrInputBase.Invert(Boolean)

OcrInputBase.Erode(Boolean)

OcrInputBase.Open(Boolean)

OcrInputBase.Close(Boolean)

OcrInputBase.HoughTransformStraighten(Int32)

OcrInputBase.Deskew(Int32)

OcrInputBase.DetectPageOrientation()

OcrInputBase.Scale(Int32, Int32, Boolean)

OcrInputBase.Dilate(Boolean)

OcrInputBase.GetPages()

OcrInputBase.RemovePages(IEnumerable<Int32>)

OcrInputBase.RemovePage(Int32)

OcrInputBase.PageCount()

OcrInputBase.TargetDPI

OcrInputBase.Title

Namespace: IronOcr

Assembly: IronOcr.dll

Syntax

public class OcrInput : OcrInputBase, IDisposable

Remarks

Also see OcrPdfInput and OcrImageInput

Constructors

OcrInput()

Creates an OcrInput Object which holds pages of rasterized input media (images, PDFs, TIFs, GIFs)

You may Load one or more media and apply image correction filters to loaded pages such as Deskew or Binarize.

Please use the `using` keyword:

using var input = new OcrInput();
input.LoadImage("input.png");
input.Deskew();
var result = new IronTesseract().Read(input);

Declaration

public OcrInput()

Methods

Add(IEnumerable<OcrInputPage>, Rectangle)

Please migrate to using: LoadPages(OcrInputPage[], Rectangle)

Declaration

public void Add(IEnumerable<OcrInputPage> imagesAsOcrInputPages, Rectangle ContentArea)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<OcrInputPage>	imagesAsOcrInputPages
IronSoftware.Drawing.Rectangle	ContentArea

AddPdf(String, String, Rectangle, Nullable<Int32>, Boolean)

Please migrate to using: LoadPdf(in Byte[], Int32, Boolean, Rectangle, String)

Declaration

public void AddPdf(string PdfPath, string Password = null, Rectangle ContentArea = null, Nullable<int> DPI, bool OnlyImages = false)

Parameters

Type	Name	Description
System.String	PdfPath
System.String	Password
IronSoftware.Drawing.Rectangle	ContentArea
System.Nullable<System.Int32>	DPI
System.Boolean	OnlyImages

Load(Object, Rectangle)

Method that will attempt to read an input from an object. It is recommended to use the explicit Load methods instead for more customization and stability. See LoadPdf and LoadImage.

Declaration

public void Load(object inputObject, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.Object	inputObject	Object to be loaded
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added. Will be ignored if onlyPdfImages set to true.

LoadImage(AnyBitmap, Rectangle)

Loads image into this OcrInput object.

Accepts: PNG. JPG, BMP, TIFF, GIF, WEBP, and other common Image formats.

Declaration

public void LoadImage(AnyBitmap imageBitmap, Rectangle contentArea = null)

Parameters

Type	Name	Description
IronSoftware.Drawing.AnyBitmap	imageBitmap	Image as an AnyBitmap
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

Remarks

If multiple pages exist in the image such as TIFF/GIF frames, all will be added as their own OcrInputPage

LoadImage(Byte[], Rectangle)

Loads image into this OcrInput object.

Accepts: PNG. JPG, BMP, TIFF, GIF, WEBP, and other common Image formats.

Declaration

public void LoadImage(byte[] imageBytes, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.Byte[]	imageBytes	Image as a byte array
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

Remarks

If multiple pages exist in the image such as TIFF/GIF frames, all will be added as their own OcrInputPage

LoadImage(Stream, Rectangle)

Loads image into this OcrInput object.

Accepts: PNG. JPG, BMP, TIFF, GIF, WEBP, and other common Image formats.

Declaration

public void LoadImage(Stream imageStream, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.IO.Stream	imageStream	Image as a Stream
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

Remarks

If multiple pages exist in the image such as TIFF/GIF frames, all will be added as their own OcrInputPage

LoadImage(String, Rectangle)

Loads image into this OcrInput object.

Accepts: PNG. JPG, BMP, TIFF, GIF, WEBP, and other common Image formats.

Declaration

public void LoadImage(string imageFilePath, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.String	imageFilePath	File Path of the Image
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

Remarks

If multiple pages exist in the image such as TIFF/GIF frames, all will be added as their own OcrInputPage

LoadImageFrame(AnyBitmap, Int32, Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrame(AnyBitmap multiFrameBitmap, int frame, Rectangle contentArea = null)

Parameters

Type	Name	Description
IronSoftware.Drawing.AnyBitmap	multiFrameBitmap	TIFF or GIF as a Bitmap to be loaded.
System.Int32	frame	Specify which frame to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrame(Byte[], Int32, Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrame(byte[] tiffBytes, int frame, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.Byte[]	tiffBytes	TIFF or GIF as a Bitmap to be loaded.
System.Int32	frame	Specify which frame to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrame(Stream, Int32, Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrame(Stream tiffStream, int frame, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.IO.Stream	tiffStream	TIFF or GIF as a Bitmap to be loaded.
System.Int32	frame	Specify which frame to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrame(String, Int32, Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrame(string tiffFilePath, int frame, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.String	tiffFilePath	TIFF or GIF as a Bitmap to be loaded.
System.Int32	frame	Specify which frame to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrames(AnyBitmap, Int32[], Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrames(AnyBitmap multiFrameBitmap, int[] frames, Rectangle contentArea = null)

Parameters

Type	Name	Description
IronSoftware.Drawing.AnyBitmap	multiFrameBitmap	TIFF or GIF as a Bitmap to be loaded.
System.Int32[]	frames	Specify which frames to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrames(Byte[], Int32[], Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrames(byte[] tiffBytes, int[] frames, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.Byte[]	tiffBytes	byte array of the TIFF or GIF to be loaded.
System.Int32[]	frames	For all frames, set to null. Otherwise, can specify which frames to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrames(Stream, Int32[], Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrames(Stream tiffStream, int[] frames, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.IO.Stream	tiffStream	Stream of the TIFF or GIF to be loaded.
System.Int32[]	frames	Specify which frames to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadImageFrames(String, Int32[], Rectangle)

Loads frames of a TIFF or GIF from an AnyBitmap to this OcrInput object.

Declaration

public void LoadImageFrames(string tiffFilePath, int[] frames, Rectangle contentArea = null)

Parameters

Type	Name	Description
System.String	tiffFilePath	File path of the TIFF or GIF to be loaded.
System.Int32[]	frames	Specify which frames to load.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadOcrInputPages(OcrInput, Rectangle)

Loads an existing OcrInput's loaded pages to this OcrInput object.

Declaration

public void LoadOcrInputPages(OcrInput ocrInput, Rectangle contentArea = null)

Parameters

Type	Name	Description
OcrInput	ocrInput	OcrInput to be loaded.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

Remarks

This only loads the Page objects and no other OcrInput properties.

LoadPage(OcrInputPage, Rectangle)

Loads an existing OcrInput Page to this OcrInput object.

Declaration

public void LoadPage(OcrInputPage page, Rectangle contentArea = null)

Parameters

Type	Name	Description
OcrInputPage	page	Page to be loaded.
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadPages(OcrInputPage[], Rectangle)

Loads existing OcrInput Pages to this OcrInput object.

Declaration

public void LoadPages(OcrInputPage[] pages, Rectangle contentArea = null)

Parameters

Type	Name	Description
OcrInputPage[]	pages
IronSoftware.Drawing.Rectangle	contentArea	Optional cropped area of the page to be added.

LoadPdf(IDocumentId, Int32[], Int32, Boolean, Rectangle)

Load the PDF document into the OcrInput object.

Declaration

public void LoadPdf(IDocumentId Document, int[] PageIndices, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null)

Parameters

Type	Name	Description
IronSoftware.IDocumentId	Document	Document to load
System.Int32[]	PageIndices	Page indices to OCR
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true

LoadPdf(in Byte[], Int32, Boolean, Rectangle, String)

Loads all pages of a PDF into the OcrInput object.

Declaration

public void LoadPdf(in byte[] PdfBytes, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.Byte[]	PdfBytes	Byte array of the PDF being loaded.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdf(Stream, Int32, Boolean, Rectangle, String)

Loads all pages of a PDF into the OcrInput object.

Declaration

public void LoadPdf(Stream PdfStream, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.IO.Stream	PdfStream	Stream of the PDF being loaded.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdf(String, Int32, Boolean, Rectangle, String)

Loads all pages of a PDF into the OcrInput object.

Declaration

public void LoadPdf(string PdfFilePath, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.String	PdfFilePath	File Path of the PDF being loaded.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPage(in Byte[], Int32, Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.

Declaration

public void LoadPdfPage(in byte[] PdfBytes, int PageIndex, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.Byte[]	PdfBytes	Byte array of the PDF being loaded.
System.Int32	PageIndex	Index of page to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPage(Stream, Int32, Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.t

Declaration

public void LoadPdfPage(Stream PdfStream, int PageIndex, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.IO.Stream	PdfStream	Stream of the PDF being loaded.
System.Int32	PageIndex	Index of page to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPage(String, Int32, Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.

Declaration

public void LoadPdfPage(string PdfFilePath, int PageIndex, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.String	PdfFilePath	File Path of the PDF being loaded.
System.Int32	PageIndex	Index of page to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPages(in Byte[], Int32[], Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.

Declaration

public void LoadPdfPages(in byte[] PdfBytes, int[] PageIndices, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.Byte[]	PdfBytes	Byte array of the PDF being loaded.
System.Int32[]	PageIndices	Indices of pages to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPages(Stream, Int32[], Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.

Declaration

public void LoadPdfPages(Stream PdfStream, int[] PageIndices, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.IO.Stream	PdfStream	Stream of the PDF being loaded.
System.Int32[]	PageIndices	Indices of pages to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadPdfPages(String, Int32[], Int32, Boolean, Rectangle, String)

Loads a specific page of a PDF into the OcrInput object.

Declaration

public void LoadPdfPages(string PdfFilePath, int[] PageIndices, int DPI = 200, bool OnlyEmbeddedImages = false, Rectangle ContentArea = null, string Password = null)

Parameters

Type	Name	Description
System.String	PdfFilePath	File Path of the PDF being loaded.
System.Int32[]	PageIndices	Indices of pages to load. First page is 0.
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.Boolean	OnlyEmbeddedImages	Set this flag to true to only scan the embedded images in a PDF and leave existing text untouched. (Default: false)
IronSoftware.Drawing.Rectangle	ContentArea	Optional cropped area of the page to be added. Cannot be used if onlyEmbeddedImages = true
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadScannedPdf(IDocumentId, Int32[], Int32)

Load a scanned PDF document into the OcrInput object.

Declaration

public void LoadScannedPdf(IDocumentId Document, int[] PageIndices = null, int DPI = 200)

Parameters

Type	Name	Description
IronSoftware.IDocumentId	Document	Scanned document to load
System.Int32[]	PageIndices	Page indices to OCR
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.

LoadScannedPdf(in Byte[], Int32[], Int32, String)

Load a scanned PDF document into the OcrInput object.

Declaration

public void LoadScannedPdf(in byte[] PdfBytes, int[] PageIndices = null, int DPI = 200, string Password = null)

Parameters

Type	Name	Description
System.Byte[]	PdfBytes	Byte array of the PDF being loaded.
System.Int32[]	PageIndices	Page indices to OCR
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadScannedPdf(Stream, Int32[], Int32, String)

Load a scanned PDF document into the OcrInput object.

Declaration

public void LoadScannedPdf(Stream PdfStream, int[] PageIndices = null, int DPI = 200, string Password = null)

Parameters

Type	Name	Description
System.IO.Stream	PdfStream	Stream of the PDF being loaded.
System.Int32[]	PageIndices	Page indices to OCR
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.String	Password	Password for the PDF if there is one. (Default: null)

LoadScannedPdf(String, Int32[], Int32, String)

Load a scanned PDF document into the OcrInput object.

Declaration

public void LoadScannedPdf(string PdfFilePath, int[] PageIndices = null, int DPI = 200, string Password = null)

Parameters

Type	Name	Description
System.String	PdfFilePath	File Path of the PDF being loaded.
System.Int32[]	PageIndices	Page indices to OCR
System.Int32	DPI	DPI (dots per inch) to apply to PDF page rasterization (Default: 200). High value means better quality but more resource intensive.
System.String	Password	Password for the PDF if there is one. (Default: null)

Implements

System.IDisposable

Inherited members

Finalize()

Dispose()

SaveAsImages(String, AnyBitmap.ImageFormat)

HighlightTextAndSaveAsImages(IronTesseract, String, ResultHighlightType)

FindTextRegion(Double, Int32, Boolean, Boolean)

FindMultipleTextRegions(Double, Int32, Boolean, Boolean)

StampCropRectanglesAndSaveAs(Rectangle[], Color, String, AnyBitmap.ImageFormat)

StampCropRectangleAndSaveAs(Rectangle, Color, String, AnyBitmap.ImageFormat)

StampCropRectangle(OcrInput, Rectangle, Color)

StampCropRectangles(OcrInput, Rectangle[], Color)

ApplyMultipleFilters(OcrFilters, Double, Int32, Int32, Int32, Boolean, Nullable<Int32>)

WithTitle(String)

Scale(Int32, Boolean)

EnhanceResolution(Int32)

AdaptiveThreshold(Nullable<Single>)

Rotate(Double)

Binarize()

ToGrayScale()

Sharpen()

ReplaceColor(Color, Color, Int32)

SelectTextColor(Color, Int32)

SelectTextColors(IEnumerable<Color>, Int32)

Contrast(Single)

DeNoise(Boolean)

Despeckle(Boolean)

Invert(Boolean)

Erode(Boolean)

Open(Boolean)

Close(Boolean)

HoughTransformStraighten(Int32)

Deskew(Int32)

DetectPageOrientation()

Scale(Int32, Int32, Boolean)

Dilate(Boolean)

GetPages()

RemovePages(IEnumerable<Int32>)

RemovePage(Int32)

PageCount()

TargetDPI

Title