private static BitmapModel BitmapToModel(Bitmap image)
{
using var stream = new MemoryStream();
image.Save(stream, ImageFormat.Jpeg);
var base64String = Convert.ToBase64String(stream.ToArray());
BitmapModel model = new BitmapModel()
{
Title = "Result",
Content = base64String
};
return(model);
}
public static async Task <IActionResult> RunAsync(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req, ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
BitmapModel bitmap = JsonConvert.DeserializeObject <BitmapModel>(requestBody);
var bytes = Convert.FromBase64String(bitmap.Content);
try
{
var image = new Bitmap(new MemoryStream(bytes));
var modifiedBitmap = await ConvertBitmapToBlackAndWhiteAsync(image);
return(new OkObjectResult(BitmapToModel(modifiedBitmap)));
}
catch (Exception ex)
{
return(new BadRequestObjectResult(ex.Message));
}
}
