public Image EraseLines(Bitmap targetImg, Color color, List <Rectangle> Regions)
{
if (Regions.Count == 0)
{
return(EraseLines(targetImg, color));
}
Counter counter = new Counter(this.outputHanler);
counter.Start("EraseLines");
//水平線
Bitmap newImg = targetImg.Clone(new Rectangle(0, 0, targetImg.Width, targetImg.Height), System.Drawing.Imaging.PixelFormat.Format24bppRgb);
LockBitmap imgLocker = new LockBitmap(newImg);
imgLocker.LockBits();
//TestGetPixle(imgLocker);
List <MergeLineInfo> Hlines = ScanLines(imgLocker, LineDirction.Horizontal);
//縦線
List <MergeLineInfo> Vlines = ScanLines(imgLocker, LineDirction.Vertical);
imgLocker.UnlockBits();
using (Graphics g = Graphics.FromImage(newImg))
{
EraseAllLines(g, Hlines, Vlines, Regions);
}
counter.End();
return(newImg);
}
public void Erase(LockBitmap img, Color color)
{
if (this.IsLine)
{
foreach (LineInfo line in this.Lines)
{
line.Erase(img, color);
}
}
}
private int SearchBlackStart(LockBitmap img, int x, int y, int maxLength, LineDirction lineType)
{
Color color = lineType == LineDirction.Horizontal ? img.GetPixel(x, y) : img.GetPixel(y, x);
while (color.ToArgb() != Color.Black.ToArgb() && x < maxLength)
{
x++;
color = lineType == LineDirction.Horizontal ? img.GetPixel(x, y) : img.GetPixel(y, x);
}
return(x);
}
private void EraseAllLines(Color color, LockBitmap imgLocker, List <MergeLineInfo> Hlines, List <MergeLineInfo> Vlines)
{
Counter counter = new Counter(this.outputHanler);
counter.Start("EraseHorizontalLines");
//水平線クリア
Hlines.ForEach(l => l.Erase(imgLocker, color));
counter.End();
//縦線クリア
counter.Start("EraseVerticalLines");
Vlines.ForEach(l => l.Erase(imgLocker, color));
counter.End();
}
public void Erase(LockBitmap img, Color color)
{
for (int x = Start; x <= End; x++)
{
if (LineType == LineDirction.Horizontal)
{
img.SetPixel(x, this.Pos, color);
}
else
{
img.SetPixel(this.Pos, x, color);
}
}
}
private void TestGetPixle(LockBitmap img)
{
Counter counter = new Counter(outputHanler);
counter.Start("TestGetPixle");
int maxStep = img.Height;
int maxLength = img.Width;
for (int y = 0; y < maxStep; y++)
{
for (int x = 0; x < maxLength; x++)
{
Color color = img.GetPixel(x, y);
}
}
counter.End();
}
public Image EraseLines(Bitmap targetImg, Color color)
{
Counter counter = new Counter(this.outputHanler);
counter.Start("EraseLines");
//水平線
Bitmap newImg = targetImg.Clone(new Rectangle(0, 0, targetImg.Width, targetImg.Height), System.Drawing.Imaging.PixelFormat.Format24bppRgb);
LockBitmap imgLocker = new LockBitmap(newImg);
imgLocker.LockBits();
//TestGetPixle(imgLocker);
List <MergeLineInfo> Hlines = ScanLines(imgLocker, LineDirction.Horizontal);
//縦線
List <MergeLineInfo> Vlines = ScanLines(imgLocker, LineDirction.Vertical);
EraseAllLines(color, imgLocker, Hlines, Vlines);
imgLocker.UnlockBits();
counter.End();
return(newImg);
}
public Image DrawLineRects(Bitmap orgImg, Color color)
{
//水平線
Bitmap newImg = orgImg.Clone(new Rectangle(0, 0, orgImg.Width, orgImg.Height), System.Drawing.Imaging.PixelFormat.Format24bppRgb);
LockBitmap imgLocker = new LockBitmap(newImg);
imgLocker.LockBits();
List <MergeLineInfo> Hlines = ScanLines(imgLocker, LineDirction.Horizontal);
//縦線
List <MergeLineInfo> Vlines = ScanLines(imgLocker, LineDirction.Vertical);
imgLocker.UnlockBits();
Bitmap drawImg = new Bitmap(newImg);
//水平線描画
Hlines.ForEach(l => l.DrawRect(drawImg));
//縦線描画
Vlines.ForEach(l => l.DrawRect(drawImg));
return(drawImg);
}
private List <MergeLineInfo> ScanLines(LockBitmap img, LineDirction lineType)
{
Counter counter = new Counter(outputHanler);
counter.Start("ScanLines -" + lineType.ToString());
LineInfo line = null;
List <LineInfo> lines = new List <LineInfo>();
int maxStep = lineType == LineDirction.Horizontal ? img.Height : img.Width;
int maxLength = lineType == LineDirction.Horizontal ? img.Width : img.Height;
int ystep = 1;
int xstep = 1;
int bigStep = Env.HighSpeedStep;
for (int y = 0; y < maxStep; y += ystep)
{
List <LineInfo> currentLines = new List <LineInfo>();
line = new LineInfo(y, lineType);
for (int x = 0; x < maxLength; x += xstep)
{
Color color = lineType == LineDirction.Horizontal ? img.GetPixel(x, y) : img.GetPixel(y, x);
if (color.ToArgb() != Color.Black.ToArgb())
{
if (line.Start > -1)
{
currentLines.Add(line);
line = new LineInfo(y, lineType);
}
xstep = bigStep;
}
else
{
if (xstep == bigStep && x > bigStep - 1)
{
x = SearchBlackStart(img, x - bigStep + 1, y, maxLength, lineType);
}
xstep = 1;
if (line.Start == -1)
{
line.Start = x;
line.End = x;
}
else
{
line.End = x;
}
}
}
if (line.Start != -1)
{
currentLines.Add(line);
}
if (currentLines.Count > 0)
{
List <LineInfo> dotLines = MergeDotLine(currentLines, Env.MaxDotSpace);
foreach (LineInfo dotLine in dotLines)
{
if (dotLine.isLine())
{
lines.Add(dotLine);
}
}
}
currentLines = null;
}
counter.End();
return(GetMergeLines(lines));
}