Aspose.OCR で画像テキスト検索 ウェブアプリを作成する方法

dotnet new webapp -n ImageTextFinderWeb
cd ImageTextFinderWeb

<form enctype="multipart/form-data" method="post">
    <input type="file" name="imageFile" />
    <input type="text" name="searchTerm" placeholder="Enter keyword or pattern" />
    <button type="submit">Search</button>
</form>
@if (Model.ResultText != null)
{
    <h3>Extracted Text:</h3>
    <pre>@Model.ResultText</pre>
    <h4>Found: @Model.KeywordFound</h4>
}

using Aspose.OCR;
public string ResultText { get; set; }
public bool KeywordFound { get; set; }
public async Task OnPostAsync(IFormFile imageFile, string searchTerm)
{
    if (imageFile != null && !string.IsNullOrWhiteSpace(searchTerm))
    {
        var filePath = Path.GetTempFileName();
        using (var stream = System.IO.File.Create(filePath))
            await imageFile.CopyToAsync(stream);
        RecognitionSettings settings = new RecognitionSettings();
        settings.Language = Language.English;
        AsposeOcr ocr = new AsposeOcr();
        var result = ocr.Recognize(new OcrInput(InputType.SingleImage) { filePath }, settings)[0];
        ResultText = result.RecognitionText;
        KeywordFound = ocr.ImageHasText(filePath, searchTerm, settings);
        // Optional: highlight logic for UI
    }
}