private static void RemoveBlackBarRight(NikseBitmap bmp)
{
int xRemoveBlackBar = bmp.Width - 1;
for (int yRemoveBlackBar = 0; yRemoveBlackBar < bmp.Height; yRemoveBlackBar++)
{
Color c = bmp.GetPixel(xRemoveBlackBar, yRemoveBlackBar);
if (c.A == 0 || IsColorClose(c, Color.Black, 280))
{
if (bmp.GetPixel(xRemoveBlackBar - 1, yRemoveBlackBar).A == 0)
{
bmp.SetPixel(xRemoveBlackBar, yRemoveBlackBar, Color.Transparent);
}
}
}
}
private static bool IsCursiveVerticalLineTransparent(NikseBitmap bmp, int size, int y, int x, List <Point> cursivePoints)
{
bool cursiveOk = true;
int newY = y;
int newX = x;
while (cursiveOk && newY < bmp.Height - 1)
{
Color c0 = bmp.GetPixel(newX, newY);
if (c0.A == 0 || IsColorClose(c0, Color.Black, 280))
{
newY++;
}
else
{
Color c1 = bmp.GetPixel(newX - 1, newY - 1);
Color c2 = bmp.GetPixel(newX - 1, newY);
if ((c1.A == 0 || IsColorClose(c1, Color.Black, 280)) && // still dark color...
(c2.A == 0 || IsColorClose(c2, Color.Black, 280)))
{
cursivePoints.Add(new Point(newX, newY));
if (newX > 1)
{
newX--;
}
else
{
cursiveOk = false;
}
newY++;
}
else
{
cursiveOk = false;
}
}
if (newX < x - size)
{
cursiveOk = false;
}
}
return(cursiveOk);
}
public static List <ImageSplitterItem> SplitVerticalTransparentOrBlack(NikseBitmap bmp, int lineMinHeight)
{
int startY = 0;
int size = 0;
var parts = new List <ImageSplitterItem>();
for (int y = 0; y < bmp.Height; y++)
{
bool allTransparent = true;
for (int x = 0; x < bmp.Width; x++)
{
Color c = bmp.GetPixel(x, y);
if (c.A > 20 && c.R + c.G + c.B > 20)
{
allTransparent = false;
break;
}
}
if (allTransparent)
{
if (size > 2 && size <= 15)
{
size++; // at least 15 pixels, like top of 'i' or top of 'È'
}
else
{
if (size > 8)
{
NikseBitmap part = bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1));
// part.Save("c:\\line_0_to_width.bmp");
parts.Add(new ImageSplitterItem(0, startY, part));
// bmp.Save("c:\\original.bmp");
}
size = 0;
startY = y;
}
}
else
{
size++;
}
}
if (size > 2)
{
if (size == bmp.Height)
{
parts.Add(new ImageSplitterItem(0, startY, bmp));
}
else
{
parts.Add(new ImageSplitterItem(0, startY, bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1))));
}
}
return(parts);
}
public ManagedBitmap(NikseBitmap nbmp)
{
Width = nbmp.Width;
Height = nbmp.Height;
_colors = new Color[Width * Height];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
this.SetPixel(x, y, nbmp.GetPixel(x, y));
}
}
}
public ManagedBitmap(NikseBitmap nbmp)
{
Width = nbmp.Width;
Height = nbmp.Height;
_colors = new Color[Width * Height];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
this.SetPixel(x, y, nbmp.GetPixel(x, y));
}
}
}
public static List <ImageSplitterItem> SplitToLinesTransparentOrBlack(NikseBitmap bmp)
{
int startY = 0;
int size = 0;
var parts = new List <ImageSplitterItem>();
for (int y = 0; y < bmp.Height; y++)
{
bool allTransparent = true;
for (int x = 0; x < bmp.Width; x++)
{
var c = bmp.GetPixel(x, y);
if (c.A > 20 && c.R + c.G + c.B > 20)
{
allTransparent = false;
break;
}
}
if (allTransparent)
{
if (size > 2 && size <= 15)
{
size++; // at least 15 pixels, like top of 'i' or top of 'È'
}
else
{
if (size > 8)
{
var part = bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1));
parts.Add(new ImageSplitterItem(0, startY, part));
}
size = 0;
startY = y;
}
}
else
{
size++;
}
}
if (size > 2)
{
parts.Add(size == bmp.Height ? new ImageSplitterItem(0, startY, bmp) : new ImageSplitterItem(0, startY, bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1))));
}
return(parts);
}
private static bool IsVerticalLineTransparent(NikseBitmap bmp, ref int y, int x)
{
bool allTransparent = true;
for (y = 0; y < bmp.Height - 1; y++)
{
Color c = bmp.GetPixel(x, y);
if (c.A == 0 || IsColorClose(c, Color.Black, 280)) // still dark color...
{
}
else
{
allTransparent = false;
break;
}
}
return(allTransparent);
}
public static int IsBitmapsAlike(NikseBitmap bmp1, Bitmap bmp2)
{
int different = 0;
int maxDiff = bmp1.Width * bmp1.Height / 5;
for (int y = 0; y < bmp1.Height; y++)
{
for (int x = 0; x < bmp1.Width; x++)
{
if (!IsColorClose(bmp1.GetPixel(x, y), bmp2.GetPixel(x, y), 20))
{
different++;
}
}
}
if (different > maxDiff)
{
return(different + 10);
}
return(different);
}
internal static unsafe int IsBitmapsAlike(NikseBitmap bmp1, ManagedBitmap bmp2)
{
int different = 0;
int maxDiff = bmp1.Width * bmp1.Height / 5;
for (int x = 1; x < bmp1.Width; x++)
{
for (int y = 1; y < bmp1.Height; y++)
{
if (!IsColorClose(bmp1.GetPixel(x, y), bmp2.GetPixel(x, y), 20))
{
different++;
}
}
if (different > maxDiff)
{
return(different + 10);
}
}
return(different);
}
public static List<ImageSplitterItem> SplitVerticalTransparentOrBlack(NikseBitmap bmp)
{
int startY = 0;
int size = 0;
var parts = new List<ImageSplitterItem>();
for (int y = 0; y < bmp.Height; y++)
{
bool allTransparent = true;
for (int x = 0; x < bmp.Width; x++)
{
Color c = bmp.GetPixel(x, y);
if (c.A > 20 && c.R + c.G + c.B > 20)
{
allTransparent = false;
break;
}
}
if (allTransparent)
{
if (size > 2 && size <= 15)
{
size++; // at least 15 pixels, like top of 'i' or top of 'È'
}
else
{
if (size > 8)
{
NikseBitmap part = bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1));
// part.Save("c:\\line_0_to_width.bmp");
parts.Add(new ImageSplitterItem(0, startY, part));
// bmp.Save("c:\\original.bmp");
}
size = 0;
startY = y;
}
}
else
{
size++;
}
}
if (size > 2)
{
if (size == bmp.Height)
parts.Add(new ImageSplitterItem(0, startY, bmp));
else
parts.Add(new ImageSplitterItem(0, startY, bmp.CopyRectangle(new Rectangle(0, startY, bmp.Width, size + 1))));
}
return parts;
}
private static NOcrChar NOcrFindExpandedMatch(NikseBitmap nbmp, ImageSplitterItem targetItem, int topMargin, List<NOcrChar> nOcrChars)
{
// var nbmp = new NikseBitmap(parentBitmap);
int w = targetItem.NikseBitmap.Width;
int index = 0;
foreach (NOcrChar oc in nOcrChars)
{
if (oc.ExpandCount > 1 && oc.Width > w && targetItem.X + oc.Width < nbmp.Width)
{
bool ok = true;
index = 0;
while (index < oc.LinesForeground.Count && ok)
{
NOcrPoint op = oc.LinesForeground[index];
foreach (Point point in op.GetPoints(oc.Width, oc.Height))
{
Point p = new Point(point.X + targetItem.X, point.Y + targetItem.Y);
if (p.X >= 0 && p.Y >= 0 && p.X < nbmp.Width && p.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(p.X, p.Y);
if (c.A > 150 && c.R + c.G + c.B > NocrMinColor)
{
}
else
{
ok = false;
break;
}
}
}
index++;
}
index = 0;
while (index < oc.LinesBackground.Count && ok)
{
NOcrPoint op = oc.LinesBackground[index];
foreach (Point point in op.GetPoints(oc.Width, oc.Height))
{
Point p = new Point(point.X + targetItem.X, point.Y + targetItem.Y);
if (p.X >= 0 && p.Y >= 0 && p.X < nbmp.Width && p.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(p.X, p.Y);
if (c.A > 150 && c.R + c.G + c.B > NocrMinColor)
{
ok = false;
break;
}
}
}
index++;
}
if (ok)
return oc;
ok = true;
index = 0;
while (index < oc.LinesForeground.Count && ok)
{
NOcrPoint op = oc.LinesForeground[index];
foreach (Point point in op.ScaledGetPoints(oc, oc.Width, oc.Height - 1))
{
Point p = new Point(point.X + targetItem.X, point.Y + targetItem.Y);
if (p.X >= 0 && p.Y >= 0 && p.X < nbmp.Width && p.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(p.X, p.Y);
if (c.A > 150 && c.R + c.G + c.B > NocrMinColor)
{
}
else
{
ok = false;
break;
}
}
}
index++;
}
index = 0;
while (index < oc.LinesBackground.Count && ok)
{
NOcrPoint op = oc.LinesBackground[index];
foreach (Point point in op.ScaledGetPoints(oc, oc.Width, oc.Height - 1))
{
Point p = new Point(point.X + targetItem.X, point.Y + targetItem.Y);
if (p.X >= 0 && p.Y >= 0 && p.X < nbmp.Width && p.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(p.X, p.Y);
if (c.A > 150 && c.R + c.G + c.B > NocrMinColor)
{
ok = false;
break;
}
}
}
index++;
}
if (ok)
return oc;
}
}
return null;
}
private static unsafe int CalculateNumberOfForegroundColors(NikseBitmap nikseBitmap)
{
int count = 0;
for (int y = 0; y < nikseBitmap.Height; y++)
{
for (int x = 0; x < nikseBitmap.Width; x++)
{
Color c = nikseBitmap.GetPixel(x, y);
if (c.A > 100 && c.R + c.G + c.B > 200)
count++;
}
}
return count;
}
private static bool IsCursiveVerticalLineTransparent(NikseBitmap bmp, int size, int y, int x, List<Point> cursivePoints)
{
bool cursiveOk = true;
int newY = y;
int newX = x;
while (cursiveOk && newY < bmp.Height - 1)
{
Color c0 = bmp.GetPixel(newX, newY);
if (c0.A == 0 || IsColorClose(c0, Color.Black, 280))
{
newY++;
}
else
{
byte[] c1 = bmp.GetPixelColors(newX - 1, newY - 1);
byte[] c2 = bmp.GetPixelColors(newX - 1, newY);
if ((c1[0] == 0 || IsColorClose(c1[0], c1[1], c1[2], c1[3], Color.Black, 280)) && // still dark color...
(c2[0] == 0 || IsColorClose(c2[0], c2[1], c2[2], c2[3], Color.Black, 280)))
{
cursivePoints.Add(new Point(newX, newY));
if (newX > 1)
newX--;
else
cursiveOk = false;
newY++;
}
else
{
cursiveOk = false;
}
}
if (newX < x - size)
cursiveOk = false;
}
return cursiveOk;
}
private static void RemoveBlackBarRight(NikseBitmap bmp)
{
int xRemoveBlackBar = bmp.Width-1;
for (int yRemoveBlackBar = 0; yRemoveBlackBar < bmp.Height; yRemoveBlackBar++)
{
Color c = bmp.GetPixel(xRemoveBlackBar, yRemoveBlackBar);
if (c.A == 0 || IsColorClose(c, Color.Black, 280))
{
if (bmp.GetPixel(xRemoveBlackBar - 1, yRemoveBlackBar).A == 0)
bmp.SetPixel(xRemoveBlackBar, yRemoveBlackBar, Color.Transparent);
}
}
}
private static bool IsVerticalLineTransparent(NikseBitmap bmp, ref int y, int x)
{
bool allTransparent = true;
for (y = 0; y < bmp.Height - 1; y++)
{
Color c = bmp.GetPixel(x, y);
if (c.A == 0 || IsColorClose(c, Color.Black, 280)) // still dark color...
{
}
else
{
allTransparent = false;
break;
}
}
return allTransparent;
}
private static bool IsMatchPointBackGround(NOcrPoint op, bool loose, NikseBitmap nbmp, NOcrChar nOcrChar)
{
foreach (Point point in op.ScaledGetPoints(nOcrChar, nbmp.Width, nbmp.Height))
{
if (point.X >= 0 && point.Y >= 0 && point.X < nbmp.Width && point.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(point.X, point.Y);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
if (nbmp.Width > 10 && point.X + 1 < nbmp.Width)
{
c = nbmp.GetPixel(point.X + 1, point.Y);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
}
if (loose)
{
if (nbmp.Width > 10 && point.X >= 1)
{
c = nbmp.GetPixel(point.X - 1, point.Y);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
}
if (nbmp.Height > 10 && point.Y + 1 < nbmp.Height)
{
c = nbmp.GetPixel(point.X, point.Y + 1);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
}
if (nbmp.Height > 10 && point.Y >= 1)
{
c = nbmp.GetPixel(point.X, point.Y - 1);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
}
}
}
}
return true;
}
private bool IsMatch()
{
NikseBitmap nbmp = new NikseBitmap(pictureBoxCharacter.Image as Bitmap);
foreach (NOcrPoint op in _nocrChar.LinesForeground)
{
foreach (Point point in op.ScaledGetPoints(_nocrChar, nbmp.Width, nbmp.Height))
{
if (point.X >= 0 && point.Y >= 0 && point.X < nbmp.Width && point.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(point.X, point.Y);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
}
else
{
return false;
}
}
}
}
foreach (NOcrPoint op in _nocrChar.LinesBackground)
{
foreach (Point point in op.GetPoints())
{
if (point.X >= 0 && point.Y >= 0 && point.X < nbmp.Width && point.Y < nbmp.Height)
{
Color c = nbmp.GetPixel(point.X, point.Y);
if (c.A > 150 && c.R + 100 + c.G + c.B > VobSubOcr.NocrMinColor)
{
return false;
}
}
}
}
return true;
}
internal static unsafe int IsBitmapsAlike(NikseBitmap bmp1, ManagedBitmap bmp2)
{
int different = 0;
int maxDiff = bmp1.Width * bmp1.Height / 5;
for (int x = 1; x < bmp1.Width; x++)
{
for (int y = 1; y < bmp1.Height; y++)
{
if (!IsColorClose(bmp1.GetPixel(x, y), bmp2.GetPixel(x, y), 20))
different++;
}
if (different > maxDiff)
return different + 10;
}
return different;
}
/// <summary>
/// Initializes a new instance of the <see cref="ManagedBitmap"/> class.
/// </summary>
/// <param name="oldBitmap">
/// The old bitmap.
/// </param>
public ManagedBitmap(Bitmap oldBitmap)
{
NikseBitmap nbmp = new NikseBitmap(oldBitmap);
this.Width = nbmp.Width;
this.Height = nbmp.Height;
this._colors = new Color[this.Width * this.Height];
for (int y = 0; y < this.Height; y++)
{
for (int x = 0; x < this.Width; x++)
{
this.SetPixel(x, y, nbmp.GetPixel(x, y));
}
}
}