public OMRReader(OMRConfiguration config)
{
var assembly = Assembly.GetExecutingAssembly();
using (var rc = assembly.GetManifestResourceStream("OMR.Resources.rc.jpg"))
{
this.rightBoundingImg = new Bitmap(rc);
}
using (var lc = assembly.GetManifestResourceStream("OMR.Resources.lc.jpg"))
{
this.leftBoundingImg = new Bitmap(lc);
}
this.ОMRConfig = config;
}
public IHttpActionResult GetAnswers(string fileKey, string name)
{
GhostscriptVersionInfo lastInstalledVersion = GhostscriptVersionInfo.GetLastInstalledVersion(GhostscriptLicense.GPL | GhostscriptLicense.AFPL, GhostscriptLicense.GPL);
Dictionary<string, List<List<bool>>> answers = new Dictionary<string, List<List<bool>>>();
byte[] file;
string[] extentions = { ".pdf", ".jpg", ".bmp", ".jpeg", ".png", ".tiff" };
if (!extentions.Contains(Path.GetExtension(name)))
{
return Ok(new { err = "noPDForIMGFile" });
}
using (MemoryStream m1 = new MemoryStream())
{
using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["DbContext"].ConnectionString))
{
connection.Open();
using (var blobStream = new BlobReadStream(connection, "dbo", "Blobs", "Content", "Key", fileKey))
{
blobStream.CopyTo(m1);
}
}
Bitmap bitmapImg;
if (Path.GetExtension(name) == ".pdf")
{
using (GhostscriptRasterizer rasterizer = new GhostscriptRasterizer())
{
rasterizer.Open(m1, lastInstalledVersion, true);
//Copied, because rasterizer disposes itself
bitmapImg = new Bitmap(rasterizer.GetPage(300, 300, 1));
}
}
else
{
bitmapImg = new Bitmap(m1);
}
OMRConfiguration conf = new OMRConfiguration();
conf.AdjustmentBlock = new OMRAdjustmentBlock(1572, 3075, 425, 106);
conf.WhiteBlock = new OMRAdjustmentBlock(1997, 3075, 106, 106);
conf.DarkFactor = 0.90;
conf.FillFactor = 1.60;
conf.ImageWidth = 2182;
conf.ImageHeight = 3210;
conf.Blocks.Add(new OMRQuestionBlock("commonQuestions1", 387, 1059, 425, 530, 5));
conf.Blocks.Add(new OMRQuestionBlock("commonQuestions2", 1312, 1059, 425, 530, 5));
conf.Blocks.Add(new OMRQuestionBlock("specializedQuestions1", 387, 1798, 425, 1060, 10));
conf.Blocks.Add(new OMRQuestionBlock("specializedQuestions2", 1312, 1798, 425, 1060, 10));
using (var omr = new OMRReader(conf))
using (bitmapImg)
{
answers = omr.Read(bitmapImg);
using (Bitmap bitmapImgResized = OMRReader.ResizeImage(bitmapImg, 580, 800))
{
using (MemoryStream m2 = new MemoryStream())
{
bitmapImgResized.Save(m2, System.Drawing.Imaging.ImageFormat.Jpeg);
file = m2.ToArray();
}
}
}
}
if (answers != null)
{
return Ok(new { answ = answers, file = file });
}
else
{
return Ok(new { err = "failedRecognition" });
}
}