No 52. 두 장의 픽셀 대비 bool
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
namespace CaptureImages
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{
List<Point> po = getPoint(@"e:\cpImage\IMG_0001.jpg");
//for (int i = 0; i < po.Count; i++)
//{
// label1.Text += po[i].X+","+po[i].Y;
//}
label1.Text = po[0].X + "," + po[0].Y;
}
private void button1_Click(object sender, EventArgs e)
{
//Bitmap bt1 = ImageScal(@"e:\ .jpg", 150, 340, 1213, 526);
//Bitmap bt2 = ImageScal(@"e:\ .jpg", 150, 340, 1221, 531);
//Bitmap bt1 = ImageScal(@"e:\ .jpg", 50, 50, 1390, 940);
Bitmap bt1 = ImageScal(@"e:\cpImage\IMG.jpg", 80, 80, 1428, 693);
Bitmap bt2 = ImageScal(@"e:\cpImage\IMG_0001.jpg", 80, 80, 1500, 692);
//Bitmap bt1 = ImageScal(@"e:\cpImage\IMG.jpg", 80, 80, 1290, 1263);
//Bitmap bt2 = ImageScal(@"e:\cpImage\IMG_0001.jpg", 80, 80, 1362, 1262);
//Bitmap bt1 = ImageScal(@"e:\ .jpg", 50, 50, 1394, 1832);
//Bitmap bt2 = ImageScal(@"e:\ .jpg", 50, 50, 1397, 945);
//Bitmap bt1 = ImageScal(@"e:\ .jpg", 50, 50, 1394, 1832);
//Bitmap bt2 = ImageScal(@"e:\ .jpg", 50, 50, 1390, 945);
List<Rectangle> rec = Compare(bt1, bt2, new Size(5, 5));
if (rec.Count > 60)
{
label1.Text = " ";
}
else
{
label1.Text = " ";
}
pictureBox1.Image = bt1;
pictureBox2.Image = bt2;
// bool i = ImgComp(bt1, bt2);
}
//
private Bitmap ImageScal(string imagePath, int width, int height, int offsetX, int offsetY)
{
//
Bitmap originalImage = new Bitmap(imagePath);
//
Bitmap newImage = new Bitmap(width, height);
//
Graphics grp = Graphics.FromImage(newImage);
//
grp.Clear(Color.Transparent);
//
grp.DrawImage(originalImage, new Rectangle(0, 0, width, height),
new Rectangle(offsetX, offsetY, width, height),
GraphicsUnit.Pixel);
originalImage.Dispose();
grp.Dispose();
#region
//if (newImage != null)
//{
// Rectangle rect = new Rectangle(0, 0, width,height);
// System.Drawing.Imaging.BitmapData bmpData = newImage.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, newImage.PixelFormat);
// IntPtr ptr = bmpData.Scan0;
// int bytes = width * height * 3;
// byte[] rgbValues = new byte[bytes];
// System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
// double colorTemp = 0;
// for (int i = 0; i < rgbValues.Length; i += 3)
// {
// colorTemp = rgbValues[i + 2] * 0.299 + rgbValues[i + 1] * 0.587 + rgbValues[i] * 0.114;
// //rgbValues[i] = rgbValues[i + 1] = rgbValues[i + 2] = colorTemp>200?(byte)(255):(byte)0;
// rgbValues[i] = rgbValues[i + 1] = rgbValues[i + 2] =(byte)colorTemp;
// }
// System.Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes);
// newImage.UnlockBits(bmpData);
//}
#endregion
//
return Imgbinaryzation(newImage);
}
/// <summary>
///
/// </summary>
private Bitmap Imgbinaryzation(Bitmap newImage)
{
if (newImage != null)
{
int threshold = ousu(newImage);
Color color = new Color();//
Color newColor = new Color();
for (int i = 0; i < newImage.Width; i++)
{
for (int j = 0; j <newImage.Height; j++)
{
color = newImage.GetPixel(i, j); //
if (color.R > threshold) newColor = Color.White;
else newColor = Color.Black;
newImage.SetPixel(i, j, newColor);
}
}
}
return newImage;
}
// （ ）
private int ousu(Bitmap img)
{
int thresholdValue = 1;
int[] ihist = new int[256];
int i, j, k;
int n, n1, n2, gmin, gmax;
double m1, m2, sum, csum, fmax, sb;
for (i = 0; i < 256; i++)
ihist[i] = 0;
gmin = 255; gmax = 0;
for (i = 1; i < img.Width - 1; i++)
{
for (j = 1; j < img.Height - 1; j++)
{
Color c = img.GetPixel(i, j);
int cn = ((c.G * 59 + c.R * 30 + c.B * 11) / 100);
ihist[cn]++;
//
if (cn > gmax) gmax = cn;
if (cn < gmin) gmin = cn;
}
}
sum = csum = 0.0;
n = 0;
for (k = 0; k <= 255; k++)
{
sum += (double)k * (double)ihist[k];
n += ihist[k];
}
if (n == 0)
{
return (60);
}
fmax = -1.0;
n1 = 0;
for (k = 0; k < 255; k++)
{
n1 += ihist[k];
if (n1 == 0) { continue; }
n2 = n - n1;
if (n2 == 0) { break; }
csum += (double)k * ihist[k];
m1 = csum / n1;
m2 = (sum - csum) / n2;
sb = (double)n1 * (double)n2 * (m1 - m2) * (m1 - m2);
/* bbg: note: can be optimized. */
if (sb > fmax)
{
fmax = sb;
thresholdValue = k;
}
}
return thresholdValue;
}
#region
/// <summary>
///
/// </summary>
/// <param name="actualImage"> </param>
/// <param name="expectedImage"> </param>
/// <returns> ， </returns>
private bool ImgComp(Bitmap actualImage, Bitmap expectedImage)
{
//
int[] actualHisogram = GetHisogram(actualImage);
int[] expectHisogram = GetHisogram(expectedImage);
//
float result = GetFinalResult(actualHisogram, expectHisogram);
// 1
return (result > 0.999);
// ， index
}
private int[] GetHisogram(Bitmap bmpImg)
{
BitmapData data = bmpImg.LockBits(new System.Drawing.Rectangle(0, 0, bmpImg.Width, bmpImg.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
int[] histogram = new int[256];
unsafe
{
byte* ptr = (byte*)data.Scan0;
int remain = data.Stride - data.Width * 3;
for (int i = 0; i < histogram.Length; i++)
histogram[i] = 0;
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
int mean = ptr[0] + ptr[1] + ptr[2];
mean /= 3;
histogram[mean]++;
ptr += 3;
}
ptr += remain;
}
}
bmpImg.UnlockBits(data);
return histogram;
}
/// <summary>
///
/// </summary>
/// <param name="actualHisogram"> </param>
/// <param name="expectedHisogram"> </param>
/// <returns> </returns>
private float GetFinalResult(int[] actualHisogram, int[] expectedHisogram)
{
if (actualHisogram.Length != expectedHisogram.Length)
{
return 0;
}
float result = 0;
int j = actualHisogram.Length;
for (int i = 0; i < j; i++)
{
result += 1 - GetAbs(actualHisogram[i], expectedHisogram[i]);
}
return result / j;
}
/// <summary>
///
/// </summary>
/// <param name="firstNum"> </param>
/// <param name="secondNum"> </param>
/// <returns> </returns>
private float GetAbs(int firstNum, int secondNum)
{
int abs = Math.Abs(firstNum - secondNum);
int maxNum = Math.Max(firstNum, secondNum);
return (float)abs / ((maxNum == 0) ? 1 : maxNum);
}
#endregion
#region
// /// <summary>
/////
///// </summary>
[StructLayout(LayoutKind.Explicit)]
private struct ICColor
{
[FieldOffset(0)]
public byte B;
[FieldOffset(1)]
public byte G;
[FieldOffset(2)]
public byte R;
}
//
//</summary>
//<param name="bmp1"></param>
//<param name="bmp2"></param>
//<param name="block"></param>
//<returns></returns>
public static List<Rectangle> Compare(Bitmap bmp1, Bitmap bmp2, Size block)
{
List<Rectangle> rects = new List<Rectangle>();
PixelFormat pf = PixelFormat.Format24bppRgb;
BitmapData bd1 = bmp1.LockBits(new Rectangle(0, 0, bmp1.Width, bmp1.Height), ImageLockMode.ReadOnly, pf);
BitmapData bd2 = bmp2.LockBits(new Rectangle(0, 0, bmp2.Width, bmp2.Height), ImageLockMode.ReadOnly, pf);
try
{
unsafe
{
int w = 0, h = 0;
while (h < bd1.Height && h < bd2.Height)
{
byte* p1 = (byte*)bd1.Scan0 + h * bd1.Stride;
byte* p2 = (byte*)bd2.Scan0 + h * bd2.Stride;
w = 0;
while (w < bd1.Width && w < bd2.Width)
{
//
for (int i = 0; i < block.Width; i++)
{
int wi = w + i;
if (wi >= bd1.Width || wi >= bd2.Width) break;
for (int j = 0; j < block.Height; j++)
{
int hj = h + j;
if (hj >= bd1.Height || hj >= bd2.Height) break;
ICColor* pc1 = (ICColor*)(p1 + wi * 3 + bd1.Stride * j);
ICColor* pc2 = (ICColor*)(p2 + wi * 3 + bd2.Stride * j);
if (pc1->R != pc2->R || pc1->G != pc2->G || pc1->B != pc2->B)
{
// . .
int bw = Math.Min(block.Width, bd1.Width - w);
int bh = Math.Min(block.Height, bd1.Height - h);
rects.Add(new Rectangle(w, h, bw, bh));
goto E;
}
}
}
E:
w += block.Width;
}
h += block.Height;
}
}
}
finally
{
bmp1.UnlockBits(bd1);
bmp2.UnlockBits(bd2);
}
return rects;
}
#endregion
/// <summary>
/// ，
/// </summary>
/// <returns></returns>
private List<Point> getPoint(string imgPath)
{
List<Point> lispo = new List<Point>();
int count = 0;
Color co = new Color();
Bitmap bt1 = new Bitmap(imgPath);
for (int i = 230; i < bt1.Height; i++)
{
count=0;
for (int j = 220; j < bt1.Width; j++)
{
co = bt1.GetPixel(j,i);
if (co.R < 250 || co.G < 250 || co.B < 250)
{
count++;
if (count > 5)
{
return lispo;
}
Point po = new Point(j,i);
lispo.Add(po);
}
}
}
return lispo;
}
}
}
asp.net 버전 사진 비교
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnShowPoint_Click(object sender, EventArgs e)
{
List<Point> po = getPoint(@"e:\cpImage\01.jpg");
label1.Text = po[0].X + "," + po[0].Y;
}
/// <summary>
/// ，
/// </summary>
/// <returns></returns>
private List<Point> getPoint(string imgPath)
{
List<Point> lispo = new List<Point>();
int count = 0;
Color co = new Color();
Bitmap bt1 = new Bitmap(imgPath);
for (int i = 230; i < bt1.Height; i++)
{
count = 0;
for (int j = 0; j < bt1.Width; j++)
{
co = bt1.GetPixel(j, i);
if (co.R < 0 || co.G < 250 || co.B < 250)
{
count++;
if (count > 5)
{
return lispo;
}
Point po = new Point(j, i);
lispo.Add(po);
}
}
}
return lispo;
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnShowImg_Click(object sender, EventArgs e)
{
DataTable dt = enterGrade.GetPaperPositions();
if (dt!=null && dt.Rows.Count>0)
{
//
List<Point> po = getPoint(@"e:\cpImage\IMG_0001.jpg");
//
string[] Code = dt.Rows[0]["CodePos"].ToString().Split(',');
//x
int codeX = Convert.ToInt32(po[0].X) - Convert.ToInt32(Code[0]);
//y
int codeY = Convert.ToInt32(po[0].Y) - Convert.ToInt32(Code[1]);
for (int i = 0; i < dt.Rows.Count; i++)
{
// td
int Interval = Convert.ToInt32(dt.Rows[i]["CP_Interval"].ToString());
//
string PositionGuid = dt.Rows[i]["PositionGuid"].ToString();
//
int cutLen = Convert.ToInt32(dt.Rows[0]["CPTDwh"].ToString());
//
string[] goodPos = dt.Rows[i]["CP_GoodPos"].ToString().Split(',');
// x
int sqlGoodX = Convert.ToInt32(goodPos[0]);
// y
int sqlGoodY = Convert.ToInt32(goodPos[1]);
int goodX = sqlGoodX + codeX;
int goodY = sqlGoodY + codeY;
for (int j = 1; j <= 4; j++)
{
Bitmap bt1 = ImageScal(@"e:\cpImage\IMG.jpg", cutLen, cutLen, sqlGoodX, sqlGoodY);
Bitmap bt2 = ImageScal(@"e:\cpImage\IMG_0001.jpg", cutLen, cutLen, goodX, goodY);
List<Rectangle> rec = Compare(bt1, bt2, new Size(5, 5));
if (rec.Count > 56)
{
//
enterGrade.ModifyGetScore(PositionGuid,j+"");
j = 5;
}
else
{
sqlGoodX += 138;
//sqlGoodY += 190;
goodX += 138;
//goodY += 190;
}
}
}
}
}
//
private Bitmap ImageScal(string imagePath, int width, int height, int offsetX, int offsetY)
{
//
Bitmap originalImage = new Bitmap(imagePath);
//
Bitmap newImage =new Bitmap(width, height);
//
Graphics grp = Graphics.FromImage(newImage);
//
grp.Clear(Color.Transparent);
//
grp.DrawImage(originalImage, new Rectangle(0, 0, width, height),
new Rectangle(offsetX, offsetY, width, height),
GraphicsUnit.Pixel);
originalImage.Dispose();
grp.Dispose();
//
return Imgbinaryzation(newImage);
}
/// <summary>
///
/// </summary>
private Bitmap Imgbinaryzation(Bitmap newImage)
{
if (newImage != null)
{
int threshold = ousu(newImage);
Color color = new Color();//
Color newColor = new Color();
for (int i = 0; i < newImage.Width; i++)
{
for (int j = 0; j < newImage.Height; j++)
{
color = newImage.GetPixel(i, j); //
if (color.R > threshold) newColor = Color.White;
else newColor = Color.Black;
newImage.SetPixel(i, j, newColor);
}
}
}
return newImage;
}
// （ ）
private int ousu(Bitmap img)
{
int thresholdValue = 1;
int[] ihist = new int[256];
int i, j, k;
int n, n1, n2, gmin, gmax;
double m1, m2, sum, csum, fmax, sb;
for (i = 0; i < 256; i++)
ihist[i] = 0;
gmin = 255; gmax = 0;
for (i = 1; i < img.Width - 1; i++)
{
for (j = 1; j < img.Height - 1; j++)
{
Color c = img.GetPixel(i, j);
int cn = ((c.G * 59 + c.R * 30 + c.B * 11) / 100);
ihist[cn]++;
//
if (cn > gmax) gmax = cn;
if (cn < gmin) gmin = cn;
}
}
sum = csum = 0.0;
n = 0;
for (k = 0; k <= 255; k++)
{
sum += (double)k * (double)ihist[k];
n += ihist[k];
}
if (n == 0)
{
return (60);
}
fmax = -1.0;
n1 = 0;
for (k = 0; k < 255; k++)
{
n1 += ihist[k];
if (n1 == 0) { continue; }
n2 = n - n1;
if (n2 == 0) { break; }
csum += (double)k * ihist[k];
m1 = csum / n1;
m2 = (sum - csum) / n2;
sb = (double)n1 * (double)n2 * (m1 - m2) * (m1 - m2);
/* bbg: note: can be optimized. */
if (sb > fmax)
{
fmax = sb;
thresholdValue = k;
}
}
return thresholdValue;
}
#region
/// <summary>
///
/// </summary>
/// <param name="actualImage"> </param>
/// <param name="expectedImage"> </param>
/// <returns> ， </returns>
private bool ImgComp(Bitmap actualImage, Bitmap expectedImage)
{
//
int[] actualHisogram = GetHisogram(actualImage);
int[] expectHisogram = GetHisogram(expectedImage);
//
float result = GetFinalResult(actualHisogram, expectHisogram);
// 1
return (result > 0.999);
// ， index
}
private int[] GetHisogram(Bitmap bmpImg)
{
BitmapData data = bmpImg.LockBits(new System.Drawing.Rectangle(0, 0, bmpImg.Width, bmpImg.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
int[] histogram = new int[256];
unsafe
{
byte* ptr = (byte*)data.Scan0;
int remain = data.Stride - data.Width * 3;
for (int i = 0; i < histogram.Length; i++)
histogram[i] = 0;
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
int mean = ptr[0] + ptr[1] + ptr[2];
mean /= 3;
histogram[mean]++;
ptr += 3;
}
ptr += remain;
}
}
bmpImg.UnlockBits(data);
return histogram;
}
/// <summary>
///
/// </summary>
/// <param name="actualHisogram"> </param>
/// <param name="expectedHisogram"> </param>
/// <returns> </returns>
private float GetFinalResult(int[] actualHisogram, int[] expectedHisogram)
{
if (actualHisogram.Length != expectedHisogram.Length)
{
return 0;
}
float result = 0;
int j = actualHisogram.Length;
for (int i = 0; i < j; i++)
{
result += 1 - GetAbs(actualHisogram[i], expectedHisogram[i]);
}
return result / j;
}
/// <summary>
///
/// </summary>
/// <param name="firstNum"> </param>
/// <param name="secondNum"> </param>
/// <returns> </returns>
private float GetAbs(int firstNum, int secondNum)
{
int abs = Math.Abs(firstNum - secondNum);
int maxNum = Math.Max(firstNum, secondNum);
return (float)abs / ((maxNum == 0) ? 1 : maxNum);
}
#endregion
#region
// /// <summary>
/////
///// </summary>
[StructLayout(LayoutKind.Explicit)]
private struct ICColor
{
[FieldOffset(0)]
public byte B;
[FieldOffset(1)]
public byte G;
[FieldOffset(2)]
public byte R;
}
/// <summary>
/// //
/// </summary>
/// <param name="bmp1"></param>
/// <param name="bmp2"></param>
/// <param name="block"></param>
/// <returns></returns>
public static List<Rectangle> Compare(Bitmap bmp1, Bitmap bmp2, Size block)
{
List<Rectangle> rects = new List<Rectangle>();
PixelFormat pf = PixelFormat.Format24bppRgb;
BitmapData bd1 = bmp1.LockBits(new Rectangle(0, 0, bmp1.Width, bmp1.Height), ImageLockMode.ReadOnly, pf);
BitmapData bd2 = bmp2.LockBits(new Rectangle(0, 0, bmp2.Width, bmp2.Height), ImageLockMode.ReadOnly, pf);
try
{
unsafe
{
int w = 0, h = 0;
while (h < bd1.Height && h < bd2.Height)
{
byte* p1 = (byte*)bd1.Scan0 + h * bd1.Stride;
byte* p2 = (byte*)bd2.Scan0 + h * bd2.Stride;
w = 0;
while (w < bd1.Width && w < bd2.Width)
{
//
for (int i = 0; i < block.Width; i++)
{
int wi = w + i;
if (wi >= bd1.Width || wi >= bd2.Width) break;
for (int j = 0; j < block.Height; j++)
{
int hj = h + j;
if (hj >= bd1.Height || hj >= bd2.Height) break;
ICColor* pc1 = (ICColor*)(p1 + wi * 3 + bd1.Stride * j);
ICColor* pc2 = (ICColor*)(p2 + wi * 3 + bd2.Stride * j);
if (pc1->R != pc2->R || pc1->G != pc2->G || pc1->B != pc2->B)
{
// . .
int bw = Math.Min(block.Width, bd1.Width - w);
int bh = Math.Min(block.Height, bd1.Height - h);
rects.Add(new Rectangle(w, h, bw, bh));
goto E;
}
}
}
E:
w += block.Width;
}
h += block.Height;
}
}
}
finally
{
bmp1.UnlockBits(bd1);
bmp2.UnlockBits(bd2);
}
return rects;
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