Aspose.OCR for .NET 2.4.0 Release Notes

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We are pleased to share a new version of Aspose.OCR for .NET with following improvements: Improvements and Changes

Enhancements

OCR-33977 IRecognitionBlock.RecognitionData always returns Null

OCR-33962 Merge OMR functionality into Aspose.OCR assembly

OCR-33546 Support Ctrl+A hotkey

Exceptions

OCR-33944 System.IndexOutOfRangeException at OmrEngine.ExtractData

OCR-33963 ArgumentException: IComparer (or the IComparable methods it relies upon) did not return zero when Array.Sort called x. CompareTo circle . x… at OcrEngine.Process

OCR-33659 Provide a meaningful exception message when OCR element dimensions are out of image bounds

Public API and Backwards Incompatible Changes

The following is a list of any changes made to the public API such as added, renamed, removed or deprecated members as well as any non-backward compatible change made to Aspose.OCR for .NET. If you have concerns about any change listed, please raise it on the Aspose.OCR support forum. Added APIs:

 Class Aspose.OMR.Elements.BarcodeElement Class Aspose.OMR.Elements.BasicElement Class Aspose.OMR.Elements.ChoiceBoxElement Class Aspose.OMR.Elements.CustomImageProcessingAttribute Class Aspose.OMR.Elements.GridElement Class Aspose.OMR.Elements.GridSection Class Aspose.OMR.Elements.ISpacedArea Class Aspose.OMR.Elements.OmrCell Class Aspose.OMR.Elements.OmrElement Class Aspose.OMR.Elements.TextOcrElement Class Aspose.OMR.ImageProcessing.AverageThresholdAlgorithm Class Aspose.OMR.ImageProcessing.GrayscaleAlgorithm Class Aspose.OMR.ImageProcessing.IProcessingAlgorithm Class Aspose.OMR.ImageProcessing.OtsuBinarizationAlgorithm Class Aspose.OMR.ImageProcessing.ProcessingPipeline Class Aspose.OMR.OmrConfig Class Aspose.OMR.OmrElementsCollection Class Aspose.OMR.OmrEngine Class Aspose.OMR.OmrImage Class Aspose.OMR.OmrPage Class Aspose.OMR.OmrPagesCollection Class Aspose.OMR.OmrProcessingResult Class Aspose.OMR.OmrTemplate Field/Enum Aspose.OMR.OmrImage.BufferPixelFormat Field/Enum Aspose.OMR.OmrImage.BytesPerPixel Method Aspose.OMR.Elements.BarcodeElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.BarcodeElement.ExtractData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.Elements.BasicElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.BasicElement.ExtractData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.Elements.BasicElement.LoadProperties(System.Collections.Specialized.StringDictionary) Method Aspose.OMR.Elements.BasicElement.SaveProperties Method Aspose.OMR.Elements.ChoiceBoxElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.ChoiceBoxElement.ExtractData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.Elements.ChoiceBoxElement.LoadProperties(System.Collections.Specialized.StringDictionary) Method Aspose.OMR.Elements.ChoiceBoxElement.SaveProperties Method Aspose.OMR.Elements.CustomImageProcessingAttribute.#ctor Method Aspose.OMR.Elements.GridElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.GridElement.ExtractData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.Elements.GridElement.SetSectionsCount(System.Int32) Method Aspose.OMR.Elements.GridSection.#ctor Method Aspose.OMR.Elements.OmrCell.#ctor Method Aspose.OMR.Elements.OmrCell.#ctor(System.String) Method Aspose.OMR.Elements.OmrElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.OmrElement.LoadProperties(System.Collections.Specialized.StringDictionary) Method Aspose.OMR.Elements.OmrElement.SaveProperties Method Aspose.OMR.Elements.TextOcrElement.#ctor(System.String,System.Drawing.PointF,System.Drawing.SizeF) Method Aspose.OMR.Elements.TextOcrElement.ExtractData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.ImageProcessing.AverageThresholdAlgorithm.#ctor Method Aspose.OMR.ImageProcessing.AverageThresholdAlgorithm.Process(Aspose.OMR.OmrImage,System.Drawing.Rectangle) Method Aspose.OMR.ImageProcessing.GrayscaleAlgorithm.#ctor Method Aspose.OMR.ImageProcessing.GrayscaleAlgorithm.Process(Aspose.OMR.OmrImage,System.Drawing.Rectangle) Method Aspose.OMR.ImageProcessing.IProcessingAlgorithm.Process(Aspose.OMR.OmrImage,System.Drawing.Rectangle) Method Aspose.OMR.ImageProcessing.OtsuBinarizationAlgorithm.#ctor Method Aspose.OMR.ImageProcessing.OtsuBinarizationAlgorithm.Process(Aspose.OMR.OmrImage,System.Drawing.Rectangle) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.#ctor Method Aspose.OMR.ImageProcessing.ProcessingPipeline.#ctor(System.Collections.ICollection) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.Add(Aspose.OMR.ImageProcessing.IProcessingAlgorithm) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.Contains(Aspose.OMR.ImageProcessing.IProcessingAlgorithm) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.CopyTo(Aspose.OMR.ImageProcessing.IProcessingAlgorithm\[\],System.Int32) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.IndexOf(Aspose.OMR.ImageProcessing.IProcessingAlgorithm) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.Insert(System.Int32,Aspose.OMR.ImageProcessing.IProcessingAlgorithm) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.OnValidate(System.Object) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.Process(Aspose.OMR.OmrImage,System.Drawing.Rectangle) Method Aspose.OMR.ImageProcessing.ProcessingPipeline.Remove(Aspose.OMR.ImageProcessing.IProcessingAlgorithm) Method Aspose.OMR.OmrConfig.#ctor Method Aspose.OMR.OmrElementsCollection.#ctor Method Aspose.OMR.OmrElementsCollection.#ctor(System.Collections.ICollection) Method Aspose.OMR.OmrElementsCollection.Add(Aspose.OMR.Elements.BasicElement) Method Aspose.OMR.OmrElementsCollection.Contains(Aspose.OMR.Elements.BasicElement) Method Aspose.OMR.OmrElementsCollection.CopyTo(Aspose.OMR.Elements.BasicElement\[\],System.Int32) Method Aspose.OMR.OmrElementsCollection.IndexOf(Aspose.OMR.Elements.BasicElement) Method Aspose.OMR.OmrElementsCollection.Insert(System.Int32,Aspose.OMR.Elements.BasicElement) Method Aspose.OMR.OmrElementsCollection.OnValidate(System.Object) Method Aspose.OMR.OmrElementsCollection.Remove(Aspose.OMR.Elements.BasicElement) Method Aspose.OMR.OmrEngine.#ctor(Aspose.OMR.OmrTemplate) Method Aspose.OMR.OmrEngine.#ctor(Aspose.OMR.OmrTemplate,Aspose.OMR.ImageProcessing.ProcessingPipeline) Method Aspose.OMR.OmrEngine.ChangeProcessingPipeline(Aspose.OMR.ImageProcessing.ProcessingPipeline) Method Aspose.OMR.OmrEngine.ExtractData(Aspose.OMR.OmrImage\[\]) Method Aspose.OMR.OmrImage.#ctor(System.Int32,System.Int32,System.Double,System.Byte\[\]) Method Aspose.OMR.OmrImage.AsBitmap Method Aspose.OMR.OmrImage.Copy Method Aspose.OMR.OmrImage.Load(System.IO.Stream) Method Aspose.OMR.OmrImage.Load(System.String) Method Aspose.OMR.OmrPage.#ctor Method Aspose.OMR.OmrPage.ExtactData(Aspose.OMR.OmrImage,Aspose.OMR.OmrConfig) Method Aspose.OMR.OmrPagesCollection.#ctor Method Aspose.OMR.OmrPagesCollection.#ctor(System.Collections.ICollection) Method Aspose.OMR.OmrPagesCollection.Add(Aspose.OMR.OmrPage) Method Aspose.OMR.OmrPagesCollection.Contains(Aspose.OMR.OmrPage) Method Aspose.OMR.OmrPagesCollection.CopyTo(Aspose.OMR.OmrPage\[\],System.Int32) Method Aspose.OMR.OmrPagesCollection.IndexOf(Aspose.OMR.OmrPage) Method Aspose.OMR.OmrPagesCollection.Insert(System.Int32,Aspose.OMR.OmrPage) Method Aspose.OMR.OmrPagesCollection.OnValidate(System.Object) Method Aspose.OMR.OmrPagesCollection.Remove(Aspose.OMR.OmrPage) Method Aspose.OMR.OmrProcessingResult.#ctor(System.Collections.Hashtable\[\]) Method Aspose.OMR.OmrTemplate.#ctor Method Aspose.OMR.OmrTemplate.Load(System.IO.Stream) Method Aspose.OMR.OmrTemplate.Load(System.String) Method Aspose.OMR.OmrTemplate.Save(System.IO.Stream) Method Aspose.OMR.OmrTemplate.Save(System.String) Property Aspose.OMR.Elements.BasicElement.Name Property Aspose.OMR.Elements.BasicElement.Position Property Aspose.OMR.Elements.BasicElement.Size Property Aspose.OMR.Elements.ChoiceBoxElement.MultipleSelectionAllowed Property Aspose.OMR.Elements.GridElement.Sections Property Aspose.OMR.Elements.GridSection.SpaceAfter Property Aspose.OMR.Elements.GridSection.SpaceBefore Property Aspose.OMR.Elements.ISpacedArea.SpaceAfter Property Aspose.OMR.Elements.ISpacedArea.SpaceBefore Property Aspose.OMR.Elements.OmrCell.SpaceAfter Property Aspose.OMR.Elements.OmrCell.SpaceBefore Property Aspose.OMR.Elements.OmrCell.Value Property Aspose.OMR.Elements.OmrElement.Cells Property Aspose.OMR.Elements.OmrElement.Configuration Property Aspose.OMR.Elements.OmrElement.IsHorizontal Property Aspose.OMR.Elements.TextOcrElement.Resource Property Aspose.OMR.ImageProcessing.ProcessingPipeline.Default Property Aspose.OMR.ImageProcessing.ProcessingPipeline.Item(System.Int32) Property Aspose.OMR.OmrConfig.FillThreshold Property Aspose.OMR.OmrConfig.TrimWhitePixels Property Aspose.OMR.OmrElementsCollection.Item(System.Int32) Property Aspose.OMR.OmrEngine.Configuration Property Aspose.OMR.OmrEngine.ProcessingPipeline Property Aspose.OMR.OmrEngine.Template Property Aspose.OMR.OmrImage.Buffer Property Aspose.OMR.OmrImage.Height Property Aspose.OMR.OmrImage.Resolution Property Aspose.OMR.OmrImage.Width Property Aspose.OMR.OmrPage.Configuration Property Aspose.OMR.OmrPage.Elements Property Aspose.OMR.OmrPage.Height Property Aspose.OMR.OmrPage.SheetImage Property Aspose.OMR.OmrPage.Width Property Aspose.OMR.OmrPagesCollection.Item(System.Int32) Property Aspose.OMR.OmrProcessingResult.PageData Property Aspose.OMR.OmrTemplate.Pages

Important Note Aspose.OCR component uses resource files to perform OCR operations on specific languages. From 2.2.0 version resource file for default language (English) is embedded into Aspose.OCR.dll and there is no need to download it separately. Currently recognition of French, Spanish and Portuguese languages is also supported. You can download specific resource files from this page .