diff --git a/OCR_Decode/DriverDrsWindow.cs b/OCR_Decode/DriverDrsWindow.cs
index d3eb87d..9dc6129 100644
--- a/OCR_Decode/DriverDrsWindow.cs
+++ b/OCR_Decode/DriverDrsWindow.cs
@@ -6,6 +6,7 @@ using System.Text;
using System.Threading.Tasks;
using Tesseract;
using System.Windows.Forms;
+using System.Drawing.Imaging;
namespace OCR_Decode
{
@@ -19,41 +20,6 @@ namespace OCR_Decode
}
public override object DecodePng()
{
- /*
- Pix tessImage = Pix.LoadFromMemory(ImageToByte(WindowImage));
-
- Page page = Engine.Process(tessImage);
- // Get the iterator for the page layout
- using (var iter = page.GetIterator())
- {
- // Loop over the elements of the page layout
- iter.Begin();
- do
- {
- // Declare a Rect variable to hold the bounding box
- Rect boundingBox;
-
- // Get the bounding box for the current element
- if (iter.TryGetBoundingBox(PageIteratorLevel.Word, out boundingBox))
- {
- //g.DrawRectangle(Pens.Red, new Rectangle(boundingBox.X1, boundingBox.Y1, boundingBox.Width, boundingBox.Height));
- }
-
- // Get the text for the current element
- var text = iter.GetText(PageIteratorLevel.Word);
- //MessageBox.Show(text.ToUpper() + Environment.NewLine);
- } while (iter.Next(PageIteratorLevel.Word));
- }
-
- WindowImage.Save(Reader.DEBUG_DUMP_FOLDER + "testDRS"+ ".png");
- page.Dispose();
- */
- /*
- string result = GetStringFromPng();
- //if (result == "")
- //result = "DRS_OPENED";
- WindowImage.Save(Reader.DEBUG_DUMP_FOLDER + result+ rnd.Next(0,10000) +".png");
- */
bool result = false;
int greenValue = GetGreenPixels();
if (EmptyDrsGreenValue == -1)
@@ -66,20 +32,38 @@ namespace OCR_Decode
return result;
}
- private int GetGreenPixels()
+ private unsafe int GetGreenPixels()
{
int tot = 0;
- for (int y = 0; y < WindowImage.Height; y++)
+
+ Bitmap bmp = WindowImage;
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadOnly, bmp.PixelFormat);
+ int bytesPerPixel = Bitmap.GetPixelFormatSize(bmp.PixelFormat) / 8;
+
+ unsafe
{
- for (int x = 0; x < WindowImage.Width; x++)
+ byte* ptr = (byte*)bmpData.Scan0.ToPointer();
+ for (int y = 0; y < bmp.Height; y++)
{
- Color pxlColor = WindowImage.GetPixel(x, y);
- if (pxlColor.G > pxlColor.B * 1.5 && pxlColor.G > pxlColor.R * 1.5)
+ byte* currentLine = ptr + (y * bmpData.Stride);
+ for (int x = 0; x < bmp.Width; x++)
{
- tot++;
+ byte* pixel = currentLine + (x * bytesPerPixel);
+
+ byte blue = pixel[0];
+ byte green = pixel[1];
+ byte red = pixel[2];
+
+ if (green > blue * 1.5 && green > red * 1.5)
+ {
+ tot++;
+ }
}
}
}
+ bmp.UnlockBits(bmpData);
+
return tot;
}
public Rectangle GetBox()
diff --git a/OCR_Decode/OCR_Decode.csproj b/OCR_Decode/OCR_Decode.csproj
index 32805f1..7eae70c 100644
--- a/OCR_Decode/OCR_Decode.csproj
+++ b/OCR_Decode/OCR_Decode.csproj
@@ -24,6 +24,7 @@
DEBUG;TRACE
prompt
4
+ true
AnyCPU
diff --git a/OCR_Decode/OcrImage.cs b/OCR_Decode/OcrImage.cs
index 708eb18..1037a4f 100644
--- a/OCR_Decode/OcrImage.cs
+++ b/OCR_Decode/OcrImage.cs
@@ -6,6 +6,7 @@ using System.Threading.Tasks;
using System.Drawing;
using System.Drawing.Drawing2D;
using Accord.Imaging.Filters;
+using System.Drawing.Imaging;
namespace OCR_Decode
{
@@ -42,7 +43,6 @@ namespace OCR_Decode
result = Grayscale(result);
result = InvertColors(result);
result = Tresholding(result, 165);
- //result = Erode(result,1);
result = Resize(result);
result = Dilatation(result, 1);
break;
@@ -53,60 +53,99 @@ namespace OCR_Decode
result = Erode(result, 1);
break;
}
-
+
//result = Dilatation(result, 1);
return result;
}
public static Bitmap Grayscale(Bitmap input)
{
- Bitmap output = new Bitmap(input.Width, input.Height);
+ Bitmap bmp = input;
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
+ int bytesPerPixel = Bitmap.GetPixelFormatSize(bmp.PixelFormat) / 8;
- for (int y = 0; y < input.Height; y++)
+ unsafe
{
- for (int x = 0; x < input.Width; x++)
+ byte* ptr = (byte*)bmpData.Scan0.ToPointer();
+ for (int y = 0; y < bmp.Height; y++)
{
- Color pixel = input.GetPixel(x, y);
- int gray = (int)(pixel.R * 0.3 + pixel.G * 0.59 + pixel.B * 0.11);
- output.SetPixel(x, y, Color.FromArgb(gray, gray, gray));
+ byte* currentLine = ptr + (y * bmpData.Stride);
+ for (int x = 0; x < bmp.Width; x++)
+ {
+ byte* pixel = currentLine + (x * bytesPerPixel);
+
+ byte blue = pixel[0];
+ byte green = pixel[1];
+ byte red = pixel[2];
+
+ int gray = (int)(red * 0.3 + green * 0.59 + blue * 0.11);
+
+ pixel[0] = pixel[1] = pixel[2] = (byte)gray;
+ }
}
}
+ bmp.UnlockBits(bmpData);
- return output;
+ return bmp;
}
public static Bitmap Tresholding(Bitmap input, int threshold)
{
- Bitmap output = new Bitmap(input.Width, input.Height);
+ Bitmap bmp = input;
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
+ int bytesPerPixel = Bitmap.GetPixelFormatSize(bmp.PixelFormat) / 8;
- for (int y = 0; y < input.Height; y++)
+ unsafe
{
- for (int x = 0; x < input.Width; x++)
+ byte* ptr = (byte*)bmpData.Scan0.ToPointer();
+ for (int y = 0; y < bmp.Height; y++)
{
- Color pixel = input.GetPixel(x, y);
- int gray = (int)(pixel.R * 0.3 + pixel.G * 0.59 + pixel.B * 0.11);
- int value = gray < threshold ? 0 : 255;
- output.SetPixel(x, y, Color.FromArgb(value, value, value));
+ byte* currentLine = ptr + (y * bmpData.Stride);
+ for (int x = 0; x < bmp.Width; x++)
+ {
+ byte* pixel = currentLine + (x * bytesPerPixel);
+
+ byte blue = pixel[0];
+ byte green = pixel[1];
+ byte red = pixel[2];
+
+ int gray = (int)(red * 0.3 + green * 0.59 + blue * 0.11);
+ int value = gray < threshold ? 0 : 255;
+
+ pixel[0] = pixel[1] = pixel[2] = (byte)value;
+ }
}
}
+ bmp.UnlockBits(bmpData);
- return output;
+ return bmp;
}
public static Bitmap InvertColors(Bitmap input)
{
- Bitmap output = new Bitmap(input.Width, input.Height);
+ Bitmap bmp = input;
+ Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
+ BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
+ int bytesPerPixel = Bitmap.GetPixelFormatSize(bmp.PixelFormat) / 8;
- for (int y = 0; y < input.Height; y++)
+ unsafe
{
- for (int x = 0; x < input.Width; x++)
+ byte* ptr = (byte*)bmpData.Scan0.ToPointer();
+ for (int y = 0; y < bmp.Height; y++)
{
- Color pixel = input.GetPixel(x, y);
- int red = 255 - pixel.R;
- int green = 255 - pixel.G;
- int blue = 255 - pixel.B;
- output.SetPixel(x, y, Color.FromArgb(red, green, blue));
+ byte* currentLine = ptr + (y * bmpData.Stride);
+ for (int x = 0; x < bmp.Width; x++)
+ {
+ byte* pixel = currentLine + (x * bytesPerPixel);
+
+ pixel[0] = (byte)(255 - pixel[0]);
+ pixel[1] = (byte)(255 - pixel[1]);
+ pixel[2] = (byte)(255 - pixel[2]);
+ }
}
}
+ bmp.UnlockBits(bmpData);
- return output;
+ return bmp;
}
public static Bitmap ApplyGaussianBlur(Bitmap input, int radius)
{