public string Apply(string input_dir, string output_dir, string fn, double size_ratio, bool preprocessing)
{
//if (!Directory.Exists(dir))
// Directory.CreateDirectory(dir);
//if (!Directory.Exists(dir + "Results"))
// Directory.CreateDirectory(dir + "Results");
this.output_dir = output_dir;
Bitmap srcimg = new Bitmap(input_dir + fn);
//Log.DeleteAll(output_dir);
//Log.SetOutputDir(output_dir);
// assigning parameters
mw = srcimg.Width;
mh = srcimg.Height;
initial_string_list.Clear();
char_blobs = null;
ImageSlicer imgslicer = new ImageSlicer();
List<TextString> text_string_list = new List<TextString>();
List<Bitmap> img_list = imgslicer.Apply(4, 4, 100, srcimg);
//srcimg.Dispose();
//srcimg= null;
//Log.SetStartTime();
for (int s = 0; s < img_list.Count; s++)
{
RemoveBoarderCC removeBoarderCC = new RemoveBoarderCC();
img_list[s] = removeBoarderCC.Apply(img_list[s]);
ConditionalDilationAutomatic cda = new ConditionalDilationAutomatic();
cda.ang_threshold = angle_ratio;
//Log.SetStartTime();
string outImagePath = output_dir+s+".png";
cda.Apply(8, img_list[s], size_ratio, angle_ratio, preprocessing, outImagePath);
Bitmap dilatedimg = new Bitmap(outImagePath);
//time = Log.GetDurationInSeconds();
//Log.WriteLine("CDA: "+s+": "+ time);
//Log.SetStartTime();
DetectTextStrings detectTS = new DetectTextStrings();
List<TextString> string_list = detectTS.Apply(img_list[s], dilatedimg);
//time = Log.GetDurationInSeconds();
//Log.WriteLine("Detect: " + s + ": " + time);
List<Bitmap> string_img_list = new List<Bitmap>();
for (int i = 0; i < string_list.Count; i++)
string_img_list.Add(string_list[i].srcimg);
int[] offset = imgslicer.xy_offset_list[s];
for (int i = 0; i < string_list.Count; i++)
{
string_list[i].x_offset = offset[0];
string_list[i].y_offset = offset[1];
mts.AddTextString(string_list[i]);
}
img_list[s].Dispose();
img_list[s] = null;
}
//time = Log.GetDurationInSeconds();
//Log.WriteLine("CDA time: "+time);
//Log.WriteLine("Start to detect orientation");
//Log.SetStartTime();
tnum = 8;
DetectOrientation();
//time = Log.GetDurationInSeconds();
//Log.WriteLine("Detect orientation time: " + time);
//Log.WriteLine("Start to detect short string orientation");
//Log.SetStartTime();
for (int i = 0; i < mts.text_string_list.Count; i++)
{
if (mts.text_string_list[i].char_list.Count <= 3)
{
List<int> nearest_string_list = findNearestSrings(i, mts.text_string_list);
int initial_orientation_count = mts.text_string_list[i].orientation_list.Count;
for (int j = 0; j < nearest_string_list.Count; j++)
mts.text_string_list[i].orientation_list.AddRange(mts.text_string_list[nearest_string_list[j]].orientation_list);
RotateImage rotate = new RotateImage();
for (int j = initial_orientation_count; j < mts.text_string_list[i].orientation_list.Count; j++)
mts.text_string_list[i].rotated_img_list.Add(rotate.Apply(mts.text_string_list[i].srcimg, (int)mts.text_string_list[i].orientation_list[j]));
}
}
//time = Log.GetDurationInSeconds();
//Log.WriteLine("Detect short string orientation time: " + time);
//Log.WriteLine("Start to write results");
//Log.SetStartTime();
Graphics g = Graphics.FromImage(srcimg);
for (int i = 0; i < mts.text_string_list.Count; i++)
{
List<Bitmap> all_string_img_list = new List<Bitmap>();
int x = mts.text_string_list[i].mass_center.X;
int y = mts.text_string_list[i].mass_center.Y;
for (int s = 0; s < mts.text_string_list[i].orientation_list.Count; s++)
{
string slope = Convert.ToInt16(mts.text_string_list[i].orientation_list[s]).ToString();
ImageStitcher imgstitcher1 = new ImageStitcher();
Bitmap single_img = imgstitcher1.ExpandCanvas(mts.text_string_list[i].rotated_img_list[s],20);
Log.WriteBitmap2FolderExactFileName(output_dir, single_img, i + "_p_" + mts.text_string_list[i].char_list.Count + "_" + x + "_" + y + "_s_" + slope + "_" + mts.text_string_list[i].bbx.X + "_" + mts.text_string_list[i].bbx.Y + "_" + mts.text_string_list[i].bbx.Width + "_" + mts.text_string_list[i].bbx.Height);
}
Font font2 = new Font("Arial", 20);
//g.DrawString(i.ToString(), font2, Brushes.Black, mts.text_string_list[i].bbx.X,mts.text_string_list[i].bbx.Y);
g.DrawRectangle(new Pen(Color.Black, 3), mts.text_string_list[i].bbx);
ImageStitcher imgstitcher2 = new ImageStitcher();
Bitmap srcimg2 = imgstitcher2.ExpandCanvas(mts.text_string_list[i].srcimg, 20);
Log.WriteBitmap2FolderExactFileName(output_dir, srcimg2, i + "_p_" + mts.text_string_list[i].char_list.Count + "_" + x + "_" + y + "_s_0" + "_" + mts.text_string_list[i].bbx.X + "_" + mts.text_string_list[i].bbx.Y + "_" + mts.text_string_list[i].bbx.Width + "_" + mts.text_string_list[i].bbx.Height);
}
g.Dispose();
//time = Log.GetDurationInSeconds();
//Log.WriteLine("Write results time: " + time);
return null;
}
public void Apply(string input_dir, string output_dir, string fn, int char_size, double size_ratio, bool preprocessing, int tnum, string lang)
{
MergeTextStrings mts = new MergeTextStrings();
ImageSlicer imgslicer = new ImageSlicer();
List<TextString> text_string_list = new List<TextString>();
List<string> imgpath_list = imgslicer.Apply(1, 1, 100, input_dir + fn, output_dir);
Log.WriteLine("Grouping text strings...");
for (int s = 0; s < imgpath_list.Count; s++)
{
Bitmap srcimg = null;
if (lang == "eng")
{
using (Bitmap tileimg = new Bitmap(imgpath_list[s]))
{
RemoveBoarderAndNoiseCC removeBoarderAndNoiseCC = new RemoveBoarderAndNoiseCC();
srcimg = removeBoarderAndNoiseCC.Apply(tileimg, char_size, 0.18);
Log.WriteBitmap2FolderExactFileName(output_dir, srcimg, "CDAInput.png");
}
}
else
{
using (Bitmap tileimg = new Bitmap(imgpath_list[s]))
{
RemoveBoarderCC removeBoarderCC = new RemoveBoarderCC();
srcimg = removeBoarderCC.Apply(tileimg);
Log.WriteBitmap2FolderExactFileName(output_dir, srcimg, "CDAInput.png");
}
}
ConditionalDilationAutomatic cda = new ConditionalDilationAutomatic();
cda.ang_threshold = angle_ratio;
string outputImagePath = output_dir + s + ".png";
cda.Apply(tnum, srcimg, size_ratio, angle_ratio, preprocessing, outputImagePath);
using (Bitmap dilatedimg = new Bitmap(outputImagePath))
{
DetectTextStrings detectTS = new DetectTextStrings();
List<TextString> string_list = detectTS.Apply(srcimg, dilatedimg);
List<Bitmap> string_img_list = new List<Bitmap>();
for (int i = 0; i < string_list.Count; i++)
string_img_list.Add(string_list[i].srcimg);
int[] offset = imgslicer.xy_offset_list[s];
for (int i = 0; i < string_list.Count; i++)
{
string_list[i].x_offset = offset[0];
string_list[i].y_offset = offset[1];
mts.AddTextString(string_list[i]);
}
}
using (Bitmap CDAInputwithLabel=new Bitmap (outputImagePath))
{
Graphics g = Graphics.FromImage(CDAInputwithLabel);
for (int i = 0; i < mts.text_string_list.Count; i++)
{
Font font = new Font("Arial", 20);
g.DrawString(i.ToString(), font, Brushes.Red, mts.text_string_list[i].bbx.X, mts.text_string_list[i].bbx.Y);
g.DrawRectangle(new Pen(Color.Green, 4), mts.text_string_list[i].bbx);
}
Log.WriteBitmap2FolderExactFileName(output_dir, CDAInputwithLabel, "CDAInputwithLabel.png");
g.Dispose();
g=null;
}
srcimg.Dispose();
srcimg = null;
}
Log.WriteLine("Detecting long string orientation...");
DetectTextOrientation detectTextOrientation = new DetectTextOrientation();
detectTextOrientation.Apply(mts, tnum);
Log.WriteLine("Detecting short string orientation...");
for (int i = 0; i < mts.text_string_list.Count; i++)
{
if (mts.text_string_list[i].char_list.Count <= 3)
{
List<int> nearest_string_list = detectTextOrientation.findNearestSrings(i, mts.text_string_list);
int initial_orientation_count = mts.text_string_list[i].orientation_list.Count;
for (int j = 0; j < nearest_string_list.Count; j++)
mts.text_string_list[i].orientation_list.AddRange(mts.text_string_list[nearest_string_list[j]].orientation_list);
for (int j = initial_orientation_count; j < mts.text_string_list[i].orientation_list.Count; j++)
{
RotateBilinear filter = new RotateBilinear(mts.text_string_list[i].orientation_list[j]);
Bitmap rotateimg = ImageUtils.InvertColors(filter.Apply(ImageUtils.InvertColors(mts.text_string_list[i].srcimg)));
mts.text_string_list[i].rotated_img_list.Add(rotateimg);
}
}
}
Log.WriteLine("Writing string results...");
mts.WriteBMP(output_dir);
}
