hi, i need help to find extreme points of polygon. example triangle points. there is 3 extreme points on triangle, on each corner of the triangle structure example points A (8, 15), point B (1, 2) points C (16,2)does anyone can help me on it? the sample set size is 16X 16.
basically, i have an image of 2D polygon sketches images.just now, i read the image and convert those image in binary form. all the image have the same size, 16x16 pixels. now, i need to read the vertex points which lies on each connected lines example triangle. triangle have a three connected points. therefore i need to return result and display those three points. thanks four the concern. i really appreciate it...
how can i to retrieve the most right side point, most top side and left and right.i already cut the images into many rectangles. where i selected the shape and resize those images size onto fix 16x16 pixels. however, i really need help on to code the program to identify those points. these are early program that i read the image an convert into binary, now i need to display the extreme points.
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.Collections;
using System.IO;
namespace JaccardRecognition
{
public partial class shape : Form
{
Bitmap Image1, Image2;
String textImage1 = "";
String textImage2 = "";
// float a, b, p, q, r, jd;
// int sum1 = 0, sum2 = 0, sum3 = 0;
// bool flag = true;
public shape()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
/*Open and read the first image*/
private void OpenFirstImageBttn_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
openFileDialog1.FileName = "";
openFileDialog1.Title = "Images";
openFileDialog1.Filter = "All Images|*.jpg; *.bmp; *.png";//
openFileDialog1.ShowDialog();
if (openFileDialog1.FileName.ToString() != "")
{
Box1.ImageLocation = openFileDialog1.FileName.ToString();
Image1 = new Bitmap(openFileDialog1.FileName.ToString());
string h = Convert.ToString(Image1.Height);
string w = Convert.ToString(Image1.Width);
displayh.Text = h;
displayw.Text = w;
}
}
/*Covert first image into binary*/
private void convertImage1_Click(object sender, EventArgs e)
{
for (int i = 0; i < Image1.Height; i++)
{
for (int j = 0; j < Image1.Width; j++)
{
if (Image1.GetPixel(j, i).A.ToString() == "255" && Image1.GetPixel(j, i).B.ToString() == "255" && Image1.GetPixel(j, i).G.ToString() == "255" && Image1.GetPixel(j, i).R.ToString() == "255")
{
textImage1 = textImage1 + "0";
}
else
{
textImage1 = textImage1 + "1";
}
}
textImage1 = textImage1 + "\r\n";
}
text1.Text = textImage1;
}
/*Open and read the second image*/
private void OpenSecondImageBttn_LinkClicked_1(object sender, LinkLabelLinkClickedEventArgs e)
{
openFileDialog2.FileName = "";
openFileDialog2.Title = "Images";
openFileDialog2.Filter = "All Images|*.jpg; *.bmp; *.png";//
openFileDialog2.ShowDialog();
if (openFileDialog1.FileName.ToString() != "")
{
Box2.ImageLocation = openFileDialog2.FileName.ToString();
Image2 = new Bitmap(openFileDialog2.FileName.ToString());
string h2 = Convert.ToString(Image2.Height);
string w2 = Convert.ToString(Image2.Width);
displayh2.Text = h2;
displayw2.Text = w2;
}
}
/*Covert second image into binary*/
private void convertImage2_Click(object sender, EventArgs e)
{
for (int i = 0; i < Image2.Height; i++)
{
for (int j = 0; j < Image2.Width; j++)
{
if (Image2.GetPixel(j, i).A.ToString() == "255" && Image2.GetPixel(j, i).B.ToString() == "255" && Image2.GetPixel(j, i).G.ToString() == "255" && Image2.GetPixel(j, i).R.ToString() == "255")
{
textImage2 = textImage2 + "0";
}
else
{
textImage2 = textImage2 + "1";
}
}
textImage2 = textImage2 + "\r\n";
}
text2.Text = textImage2;
}
/*This will compare both image from the binary data to check the similatiry measure */
/*Retrieve data in binary form to compute
--> The image size 16x16 pixels
--> looping the image 16 times where the comparison between in rows operation*/
private void Compare_Click(object sender, EventArgs e)
{
int p = 0;
int q = 0;
int r = 0;
for (int i = 0; i < textImage1.Length; i++)
{
if (textImage1[i] == '1')
{
if (textImage2[i] == '1')
{
p++;
}
else
{
q++;
}
}
else if (textImage2[i] == '1')
{
r++;
}
}
double jd = ((double)q + r) / (p + q + r);
//double jd = 1-(p / (p + q + r));
string valueP = Convert.ToString(p);
string valueQ = Convert.ToString(q);
string valueR = Convert.ToString(r);
// string valueA = Convert.ToString(a);
// string valueB = Convert.ToString(b);
text3.Text = valueP;
text4.Text = valueQ;
text5.Text = valueR;
// textqr.Text = valueA;
// textpqr.Text = valueB;
if (jd == 0)
{
MessageBox.Show("Images are similar,ratio results:" + jd);
}
else if (jd == 0.01 || jd <= 1)
{
MessageBox.Show("Images are dissimilar,ratio results:" + jd);
}
else
MessageBox.Show("can not compare this images");
this.Dispose();
}
}
}
i really need a help, thanks you so much
