Henara.Scan.Client

Setup

dotnet add package Henara.Scan.Client

builder.Services.AddScanClient(builder.Configuration);

Results

if ((await scan.Crop(image, cancellationToken)).TryGetValue(out var page, out var error) == false)
    return error;

var city = front.PatientCity.Or("unknown");

if (front.PatientBirthDate.TryGetValue(out var born))
    Use(born);

Calls

Leave IsAutocropEnabled off for images that are already cropped.

var cropped = await scan.Crop(image, cancellationToken);

var pdf = await scan.Combine([front, back], isAutocropEnabled: true, cancellationToken);

Muster 13 and Muster 56

var reading = await scan.ReadMuster13(
    new SheetsReadRequest(
        [new SheetImage(SheetSide.Front, front), new SheetImage(SheetSide.Back, back)],
        IsFieldImageRequested: true,
        new ReadOutputs(RenderTargets.Pdf | RenderTargets.Html, false, false),
        IsAutocropEnabled: true),
    cancellationToken);

ReadMuster56 takes the same request. A PDF of one or two pages goes in a single SheetImage, with IsFieldImageRequested: false.

Front page with either engine

var frontPage = await scan.ReadMuster13FrontPage(
    OcrEngine.Azure,
    new FrontPageReadRequest(front, new ReadOutputs(RenderTargets.None, false, false)),
    cancellationToken);

ReadMuster56FrontPage returns only the fields both forms share; use ReadMuster56 for the rest.

Teilnahmebestätigung

var attendance = await scan.ReadAttendanceSheet(
    new AttendanceSheetReadRequest(sheet, IsAutocropEnabled: true),
    cancellationToken);

Own schema

var schemas = await scan.ListSchemas(cancellationToken);

var custom = await scan.ReadMuster13(
    new SheetsReadRequest([new SheetImage(SheetSide.Front, front)], false, new ReadOutputs())
    {
        SchemaJson = schemaJson
    },
    cancellationToken);

var annotation = await scan.ReadImagesWithSchemaWithMistral(
    new SchemaReadRequest(schemaJson, [page1, page2]),
    cancellationToken);

Field images

var stamp = reading.Reading.FieldImages.FirstOrDefault(image => image.FieldId == "stempel-arzt");

if (stamp is { HasInk: true })
    Save(stamp.Content, stamp.ContentType);