private static void AnalyseLayout()
{
string imageFile = @"D:\Self-Study\OpenSources\Tesseract\original\phototest.tif";
//imageFile = @"D:\Self-Study\OpenSources\Tesseract\original\eurotext.tif";
TesseractProcessor processor = new TesseractProcessor();
processor.InitForAnalysePage();
processor.SetPageSegMode(ePageSegMode.PSM_AUTO);
using (Bitmap bmp = Bitmap.FromFile(imageFile) as Bitmap)
{
DocumentLayout doc = processor.AnalyseLayout(bmp);
Console.WriteLine(doc.ToString());
using (Image tmp = new Bitmap(bmp.Width, bmp.Height)) // prevents one-byte index format
{
using (Graphics grph = Graphics.FromImage(tmp))
{
Rectangle rect = new Rectangle(0, 0, tmp.Width, tmp.Height);
grph.DrawImage(bmp, rect, rect, GraphicsUnit.Pixel);
grph.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
foreach (Block block in doc.Blocks)
{
DrawBlock(grph, block);
}
}
tmp.Save(@"D:\temp\page_layout_test2.bmp");
}
}
}
private static void AnalyseLayout()
{
string imageFile = @"D:\Self-Study\OpenSources\Tesseract\original\phototest.tif";
//imageFile = @"D:\Self-Study\OpenSources\Tesseract\original\eurotext.tif";
TesseractProcessor processor = new TesseractProcessor();
processor.InitForAnalysePage();
processor.SetPageSegMode(ePageSegMode.PSM_AUTO);
using (Bitmap bmp = Bitmap.FromFile(imageFile) as Bitmap)
{
DocumentLayout doc = processor.AnalyseLayout(bmp);
Console.WriteLine(doc.ToString());
using (Image tmp = new Bitmap(bmp.Width, bmp.Height)) // prevents one-byte index format
{
using (Graphics grph = Graphics.FromImage(tmp))
{
Rectangle rect = new Rectangle(0, 0, tmp.Width, tmp.Height);
grph.DrawImage(bmp, rect, rect, GraphicsUnit.Pixel);
grph.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
foreach (Block block in doc.Blocks)
{
DrawBlock(grph, block);
}
}
tmp.Save(@"D:\temp\page_layout_test2.bmp");
}
}
}
public static void AnalyseLayout()
{
int n_images = Workspace.Images.Length;
int i_image = 0;
for (; i_image < n_images; i_image++)
{
string fileName = Workspace.Images[i_image];
Console.WriteLine("{0} Image: {1}", i_image, fileName);
string imageFile = Path.Combine(Workspace.InputFolder, fileName);
string name = Path.GetFileNameWithoutExtension(imageFile);
string outFile = Path.Combine(Workspace.OutputFolder, string.Format("Simple1_{0}_layout.bmp", name));
string outFile2 = Path.Combine(Workspace.OutputFolder, string.Format("Simple1_{0}_grey.bmp", name));
string outFile3 = Path.Combine(Workspace.OutputFolder, string.Format("Simple1_{0}_bin.bmp", name));
using (TesseractProcessor processor = new TesseractProcessor())
{
processor.InitForAnalysePage();
//processor.SetPageSegMode(ePageSegMode.PSM_AUTO);
using (Bitmap bmp = Bitmap.FromFile(imageFile) as Bitmap)
{
DateTime started = DateTime.Now;
DateTime ended = DateTime.Now;
DocumentLayout doc = null;
unsafe
{
started = DateTime.Now;
doc = processor.AnalyseLayout(bmp);
ended = DateTime.Now;
Console.WriteLine("Duration AnalyseLayout: {0} ms", (ended - started).TotalMilliseconds);
}
Console.WriteLine(doc.ToString());
using (Image tmp = new Bitmap(bmp.Width, bmp.Height)) // prevents one-byte index format
{
using (Graphics grph = Graphics.FromImage(tmp))
{
Rectangle rect = new Rectangle(0, 0, tmp.Width, tmp.Height);
grph.DrawImage(bmp, rect, rect, GraphicsUnit.Pixel);
grph.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
foreach (Block block in doc.Blocks)
{
Render.DrawBlock(grph, block);
}
}
tmp.Save(outFile);
}
}
}
}
}
static oTesseractRequest __ocrExecute(oTesseractRequest req, Bitmap bitmap)
{
using (TesseractProcessor processor = new TesseractProcessor())
{
// call SetVariable() method before passing image(api->SetImage(image))
// 0: otsu
// 1: isodata local adaptive
// 2: sauvola local adaptive => not implement yet
//processor.SetVariable("tessedit_thresholding_method", "0");
processor.SetVariable("tessedit_thresholding_method", "1");
//processor.InitForAnalysePage();
//processor.SetPageSegMode(ePageSegMode.PSM_AUTO_ONLY);
//var success = processor.Init(req.data_path, req.lang, (int)eOcrEngineMode.OEM_DEFAULT);
//var imageColor = new Emgu.CV.Mat();
//var imageCV = new Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte>(bitmap); //Image Class from Emgu.CV
////var imageCV = new Emgu.CV.Image<Emgu.CV.Structure.Gray, byte>(bitmap); //Image Class from Emgu.CV
//var image = imageCV.Mat; //This is your Image converted to Mat
//if (image.NumberOfChannels == 1)
// Emgu.CV.CvInvoke.CvtColor(image, imageColor, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);
//else
// image.CopyTo(imageColor);
using (var m0 = new MemoryStream())
{
bitmap.Save(m0, ImageFormat.Jpeg);
//using (Bitmap bmp = Bitmap.FromFile(@"C:\temp\1.jpg") as Bitmap)
using (Bitmap bmp = new Bitmap(m0))
{
DocumentLayout doc = null;
switch (req.command)
{
case TESSERACT_COMMAND.GET_TEXT:
//string s = tes.GetText().Trim();
//req.output_text = s;
//req.output_count = s.Length;
req.ok = 1;
break;
default:
unsafe
{
doc = processor.AnalyseLayout(bmp);
}
if (doc != null)
{
var bs = new List <string>();
if (doc.Blocks.Count > 0)
{
for (int i = 0; i < doc.Blocks.Count; i++)
{
for (int j = 0; j < doc.Blocks[i].Paragraphs.Count; j++)
{
bs.AddRange(doc.Blocks[j].Paragraphs[j].Lines
.Select(x => string.Format(
"{0}_{1}_{2}_{3}", x.Left, x.Top, x.Right, x.Bottom)));
}
}
}
req.output_format = "left_top_right_bottom";
req.output_text = string.Join("|", bs.ToArray());
req.output_count = bs.Count;
req.ok = 1;
}
break;
}
}
}
}
return(req);
}
