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nielsbosmanielsbosma
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Merge pull request #81 from adit-dhananjay/feat/aspose-ocr
Example of Aspose OCR
2 parents a4db7fe + b36db5f commit 67d61ae

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‎aspose-ocr/.gitignore‎

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bin/
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obj/
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*.sln.iml
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.idea/**/*
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**/.idea/*

‎aspose-ocr/Apps/ImageToTextApp.cs‎

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using Ivy.Aspose.OCR.Examples.Connections.OCR;
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using System.IO;
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namespace Ivy.Aspose.OCR.Examples.Apps;
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[App(icon: Icons.FileImage, path: ["Apps"])]
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public class ImageToTextApp : ViewBase
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{
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public override object? Build()
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{
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var outputText = this.UseState<string>("");
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var ocrService = UseService<IOCRService>();
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var error = UseState<string?>(() => null);
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var files = UseState<FileInput?>(() => null);
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var fileBytes = UseState<byte[]?>(() => null); // Store the actual file bytes
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var uploadUrl = this.UseUpload(
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uploadedBytes =>
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{
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if (uploadedBytes.Length > 1 * 1024 * 1024) // 1MB limit
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{
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error.Set("File size must be less than 1MB");
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fileBytes.Set((byte[]?)null); // Clear stored bytes on error
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return;
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}
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error.Set((string?)null);
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fileBytes.Set(uploadedBytes); // Store the file bytes for later use
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},
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"image/jpeg",
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"uploaded-image"
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);
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return Layout.Vertical(
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Text.H1("Convert Image to text online").Color(Colors.Green),
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Text.Block("Free OCR software to convert images or screenshots to text online"),
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error.Value != null
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? new Callout(error.Value, variant: CalloutVariant.Error)
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: null,
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files.ToFileInput(uploadUrl, "Upload Image").Accept("image/*"),
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new Button("Recognize", _ =>
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{
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if (error.Value == null && fileBytes.Value != null)
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{
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// Use the stored file bytes instead of file.Content
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using var ms = new MemoryStream(fileBytes.Value);
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outputText.Value = ocrService.ExtractText(ms);
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fileBytes.Set((byte[]?)null); // Clear stored bytes once completed
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}
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}),
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Text.Block("Output Text:"),
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new ObservableView<string>(outputText)
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).Align(Align.Center);
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}
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}

‎aspose-ocr/Apps/aspose-OCR-image-to-text.png‎

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‎aspose-ocr/Connections/OCR/Aspose/AsposeOCRService.cs‎

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using Aspose.OCR;
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namespace Ivy.Aspose.OCR.Examples.Connections.OCR.Aspose;
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public class AsposeOcrService: IOCRService
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{
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private readonly AsposeOcr recognitionEngine;
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public AsposeOcrService()
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{
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recognitionEngine = new AsposeOcr();
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}
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public string ExtractText(MemoryStream imageStream)
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{
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// Add image to the recognition batch
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var source = new OcrInput(InputType.SingleImage);
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source.Add(imageStream);
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// Perform OCR
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List<RecognitionResult> results
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= recognitionEngine.Recognize(source);
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// OCR processing
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string result = string.Empty;
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if (results.Count > 0)
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{
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result = results[0].RecognitionText;
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}
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return result;
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}
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}

‎aspose-ocr/Connections/OCR/IOCRService.cs‎

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namespace Ivy.Aspose.OCR.Examples.Connections.OCR;
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public interface IOCRService
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{
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string ExtractText(MemoryStream imageStream);
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}

‎aspose-ocr/Connections/OCR/OCRConnection.cs‎

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using Ivy.Aspose.OCR.Examples.Connections.OCR.Aspose;
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using Ivy.Connections;
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namespace Ivy.Aspose.OCR.Examples.Connections.OCR;
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public class OCRConnection : IConnection
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{
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public string GetConnectionType()
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{
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return typeof(OCRConnection).ToString();
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}
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public string GetContext(string connectionPath)
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{
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throw new NotImplementedException();
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}
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public ConnectionEntity[] GetEntities()
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{
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throw new NotImplementedException();
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}
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public string GetName() => nameof(OCRConnection);
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public string GetNamespace() => typeof(OCRConnection).Namespace;
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public void RegisterServices(IServiceCollection services)
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{
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services.AddScoped<IOCRService, AsposeOcrService>();
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}
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}

‎aspose-ocr/GlobalUsings.cs‎

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global using Ivy;
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global using Ivy.Apps;
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global using Ivy.Auth;
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global using Ivy.Chrome;
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global using Ivy.Client;
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global using Ivy.Core;
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global using Ivy.Core.Hooks;
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global using Ivy.Helpers;
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global using Ivy.Hooks;
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global using Ivy.Shared;
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global using Ivy.Services;
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global using Ivy.Views;
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global using Ivy.Views.Alerts;
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global using Ivy.Views.Blades;
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global using Ivy.Views.Builders;
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global using Ivy.Views.Charts;
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global using Ivy.Views.Dashboards;
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global using Ivy.Views.Forms;
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global using Ivy.Views.Tables;
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global using Ivy.Widgets.Inputs;
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global using Microsoft.Extensions.Configuration;
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global using Microsoft.Extensions.DependencyInjection;
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global using Microsoft.Extensions.Logging;
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global using System.Collections.Immutable;
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global using System.ComponentModel.DataAnnotations;
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global using System.Globalization;
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global using System.Reactive.Linq;
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namespace Ivy.Aspose.OCR.Examples;

‎aspose-ocr/Ivy.Aspose.OCR.Examples.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net9.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<NoWarn>CS8618;CS8603;CS8602;CS8604;CS9113</NoWarn>
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<RootNamespace>Ivy.Aspose.OCR.Examples</RootNamespace>
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</PropertyGroup>
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<ItemGroup>
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<EmbeddedResource Include="Assets/**/*" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Aspose.OCR" Version="25.9.0" />
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<PackageReference Include="Ivy" Version="1.0.113.0" />
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</ItemGroup>
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</Project>

‎aspose-ocr/Ivy.Aspose.OCR.Examples.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.14.36429.23 d17.14
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ivy.Aspose.OCR.Examples", "Ivy.Aspose.OCR.Examples.csproj", "{BA2A13B0-78C9-203B-1462-034AD42E4D37}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{BA2A13B0-78C9-203B-1462-034AD42E4D37}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{BA2A13B0-78C9-203B-1462-034AD42E4D37}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{BA2A13B0-78C9-203B-1462-034AD42E4D37}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{BA2A13B0-78C9-203B-1462-034AD42E4D37}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {24B5F0F2-14B2-4944-9817-4606E84F19E2}
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EndGlobalSection
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EndGlobal

‎aspose-ocr/Program.cs‎

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using Ivy.Aspose.OCR.Examples.Apps;
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CultureInfo.DefaultThreadCurrentCulture = CultureInfo.DefaultThreadCurrentUICulture = new CultureInfo("en-US");
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var server = new Server();
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#if DEBUG
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server.UseHotReload();
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#endif
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server.AddAppsFromAssembly();
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server.AddConnectionsFromAssembly();
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var chromeSettings = new ChromeSettings()
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.DefaultApp<ImageToTextApp>()
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.UseTabs(preventDuplicates: true);
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server.UseChrome(chromeSettings);
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await server.RunAsync();

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