diff --git a/AakashNaik/auv_task.cpp b/AakashNaik/auv_task.cpp
new file mode 100644
index 0000000..d14699f
--- /dev/null
+++ b/AakashNaik/auv_task.cpp
@@ -0,0 +1,343 @@
+#include "stdafx.h"
+#include <stdio.h>
+#include <iostream>
+#include <opencv2\opencv.hpp>
+#include <queue>
+#include <stack>
+#include<math.h>
+using namespace cv;
+using namespace std;
+ 
+stack<Point> s;
+stack<Point> v;
+stack<Point>a;
+Point toppoint;
+
+Mat canny_image = imread("C:\\Users\\Aakash Naik\\Desktop\\input2.jpg");
+Mat canny_output = imread("C:\\Users\\Aakash Naik\\Desktop\\input2.jpg");
+Mat canny_output2(canny_image.rows, canny_image.cols, 0);
+Mat canny_output3(canny_image.rows, canny_image.cols, 0);
+Mat canny_output4(canny_image.rows, canny_image.cols, 0);
+
+
+
+
+int main()
+{
+	int bg_v = 238;
+	namedWindow("output", WINDOW_AUTOSIZE);
+	int sum_r = 0, sum_g = 0, sum_b = 0;
+	for (int i = 0; i < canny_image.rows; i++)
+	{
+		for (int j = 0; j < canny_image.cols; j++)
+		{
+			sum_r += canny_image.at<Vec3b>(i, j)[2];
+			sum_g += canny_image.at<Vec3b>(i, j)[1];
+			sum_b += canny_image.at<Vec3b>(i, j)[0];
+		}
+	}
+	sum_r = (int)(1.0*sum_r / (canny_image.rows*canny_image.cols));
+	sum_g = (int)(1.0*sum_g / (canny_image.rows*canny_image.cols));
+	sum_b = (int)(1.0*sum_b / (canny_image.rows*canny_image.cols));
+
+
+	for (int i = 0; i < canny_image.rows; i++)
+	{
+		for (int j = 0; j < canny_image.cols; j++)
+		{
+			/*if ((abs(canny_image.at<Vec3b>(i, j)[2] - canny_image.at<Vec3b>(i, j)[0])) +(abs(canny_image.at<Vec3b>(i, j)[2] - canny_image.at<Vec3b>(i, j)[1])) +(abs(canny_image.at<Vec3b>(i, j)[1]-canny_image.at<Vec3b>(i, j)[0]))>40)
+			{
+			canny_image.at<Vec3b>(i, j)[2] = sum_r;
+			canny_image.at<Vec3b>(i, j)[1] = sum_g;
+			canny_image.at<Vec3b>(i, j)[0] = sum_b;
+
+			}
+			else*/
+			{
+				if (abs(canny_image.at<Vec3b>(i, j)[2] - canny_image.at<Vec3b>(i, j)[1]) > 17 || abs(canny_image.at<Vec3b>(i, j)[2] - canny_image.at<Vec3b>(i, j)[0]) > 17)
+				{
+					canny_image.at<Vec3b>(i, j)[2] = 255;
+					canny_image.at<Vec3b>(i, j)[1] = 255;
+					canny_image.at<Vec3b>(i, j)[0] = 255;
+				}
+				else
+
+				if (canny_image.at<Vec3b>(i, j)[2] > 220)
+				{
+					canny_image.at<Vec3b>(i, j)[2] = 255;
+					canny_image.at<Vec3b>(i, j)[1] = 255;
+					canny_image.at<Vec3b>(i, j)[0] = 255;
+				}
+				else
+				{
+					canny_image.at<Vec3b>(i, j)[2] = 0;
+					canny_image.at<Vec3b>(i, j)[1] = 0;
+					canny_image.at<Vec3b>(i, j)[0] = 0;
+
+				}
+
+			}
+		}
+	}
+
+
+	for (int i = 0; i < canny_output2.rows; i++)
+	{
+		int count_h = 0;
+		int count_v = 0;
+
+		for (int j = 0; j < canny_output2.cols; j++)
+		{
+			count_v = 0;
+			if (canny_image.at<Vec3b>(i, j)[2] == 0)
+			{
+
+				count_v++;
+
+				s.push(Point(i, j));
+				v.push(Point(i, j));
+
+				int q = 1;
+
+				while (!s.empty())
+				{
+					toppoint = s.top();
+					s.pop();
+					if (toppoint.y + q < canny_image.cols)
+					{
+						if (canny_image.at<Vec3b>(toppoint.x, toppoint.y + q)[2] == 0)
+						{
+
+							s.push(Point(toppoint.x, toppoint.y + q));
+							v.push(Point(toppoint.x, toppoint.y + q));
+							count_v++;
+
+
+						}
+					}
+				}
+
+			}
+
+			if (count_v > 20)
+			{
+				while (!v.empty())
+				{
+					Point point = v.top();
+
+					canny_image.at<Vec3b>(point.x, point.y)[2] = 255;
+					canny_image.at<Vec3b>(point.x, point.y)[1] = 255;
+					canny_image.at<Vec3b>(point.x, point.y)[0] = 255;
+					v.pop();
+				}
+			}
+			else
+			{
+				while (!v.empty())
+					v.pop();
+			}
+			///////////////////////////
+
+			count_h = 0;
+			if (canny_image.at<Vec3b>(i, j)[2] == 0)
+			{
+
+				count_h++;
+
+				s.push(Point(i, j));
+				v.push(Point(i, j));
+
+				int q = 1;
+
+				while (!s.empty())
+				{
+					toppoint = s.top();
+					s.pop();
+					if (toppoint.x + q < canny_image.rows)
+					{
+						if (canny_image.at<Vec3b>(toppoint.x + q, toppoint.y)[2] == 0)
+						{
+
+							s.push(Point(toppoint.x + q, toppoint.y));
+							v.push(Point(toppoint.x + q, toppoint.y));
+							count_h++;
+
+
+						}
+					}
+				}
+
+			}
+
+			if (count_h > 20)
+			{
+				while (!v.empty())
+				{
+					Point point = v.top();
+					canny_image.at<Vec3b>(point.x, point.y)[2] = 255;
+					canny_image.at<Vec3b>(point.x, point.y)[1] = 255;
+					canny_image.at<Vec3b>(point.x, point.y)[0] = 255;
+					v.pop();
+				}
+			}
+			else
+			{
+				while (!v.empty())
+					v.pop();
+			}
+
+
+		}
+	}
+	
+	
+
+
+
+
+	
+	int array[600][2];
+	for (int i = 0; i < canny_image.rows; i++)
+	{
+		for (int j = 0; j < canny_image.cols; j++)
+		{
+			int count = 0;
+			for (int p = -1; p < 2; p++)
+			{
+				for (int q = -1; q < 2; q++)
+				{
+					if (i + p>0 && i + p<canny_image.rows&&j + q>0 && j + q < canny_image.cols)
+					{
+						if (canny_image.at<Vec3b>(i + p, j + q)[2] == 255)
+						{
+							count++;
+						}
+					}
+				}
+			}
+			if (count == 8)
+			{
+				canny_image.at<Vec3b>(i, j)[2] = 255;
+				canny_image.at<Vec3b>(i, j)[1] = 255;
+				canny_image.at<Vec3b>(i, j)[0] = 255;
+			}
+		}
+	}
+
+	int k = 0, r = 0;
+	for (int i = 0; i < canny_image.rows; i++)
+	{
+		for (int j = 0; j < canny_image.cols; j++)
+		{
+			int count = 0;
+
+
+			for (int p = -2; p < 3; p++)
+			{
+				for (int q = -2; q < 3; q++)
+				{
+					if (i + p>=0 && i + p<canny_image.rows&&j + q>=0 && j + q < canny_image.cols)
+					{
+						if (canny_image.at<Vec3b>(i + p, j + q)[2] == 0)
+						{
+							count++;
+						}
+					}
+				}
+			}
+
+			if (count > 10)
+			{
+				canny_image.at<Vec3b>(i, j)[2] = 180;
+				canny_image.at<Vec3b>(i, j)[1] = 253;
+				canny_image.at<Vec3b>(i, j)[0] = 11;
+				array[k][0] = i;
+				array[k][1] = j;
+				k++;
+
+			}
+		}
+	}
+
+	
+	for (int i = 0; i < canny_image.rows; i++)
+	{
+
+		for (int j = 0; j < canny_image.cols; j++)
+		{   
+			//cout << "check";
+			Point max, min;
+			max.x = i;
+			max.y = j;
+			min.x = i;
+			min.y = j;
+			if (canny_image.at<Vec3b>(i, j)[2] == 180 && canny_image.at<Vec3b>(i, j)[1] == 253 && canny_image.at<Vec3b>(i, j)[0] == 11)
+			{
+				
+				a.push(Point(i, j));
+
+
+				//cout << "(" << min.x << "," << min.y << ");" << "(" << max.x << "," << max.y << ")out" << '\n';
+				while (!a.empty())
+				{
+
+					toppoint = a.top();
+
+					a.pop();
+					
+					canny_image.at<Vec3b>(i, j)[2] = 0;
+					canny_image.at<Vec3b>(i, j)[1] = 0;
+					canny_image.at<Vec3b>(i, j)[0] = 0;
+					for (int k = -2; k < 3; k++)
+					{
+						for (int q = -2; q < 3; q++)
+						{
+							if ( toppoint.x+ k>=0 && toppoint.x + k<canny_image.rows&&toppoint.y + q>=0 && toppoint.y + q < canny_image.cols)
+							if (canny_image.at<Vec3b>(toppoint.x +   k, toppoint.y + q)[2] == 155)
+							{
+								//cout << "karn" << '\n';
+								a.push(Point(toppoint.x +  k, toppoint.y +q));
+
+								canny_image.at<Vec3b>(toppoint.x +  k, toppoint.y +  q)[2] = 0;
+								canny_image.at<Vec3b>(toppoint.x +  k, toppoint.y +  q)[1] = 0;
+								canny_image.at<Vec3b>(toppoint.x +  k, toppoint.y +  q)[0] = 0;
+								if (toppoint.x + k>max.x)
+									max.x = toppoint.x +  k;
+								if (toppoint.y + q > max.y)
+									max.y = toppoint.y +  q;
+								if (toppoint.x + k < min.x)
+									min.x = toppoint.x +  k;
+								if (toppoint.y + q < min.y)
+									min.y = toppoint.y +  q;
+
+							}
+
+						}
+
+					}
+
+
+				}
+		         const Scalar color(0, 255, 0);
+				 int swap;
+				 swap = max.x;
+				 max.x = max.y;
+				 max.y = swap;
+
+				 swap = min.x;
+				 min.x = min.y;
+				 min.y = swap;
+				//cout << "(" << min.x << "," << t << ");" << "(" << max.x << "," << max.y << ")" << '\n';
+				 rectangle( canny_output, max,  min, color, 2, 8, 0);	//last 3 are thickness, linetype and shift 
+			}
+
+		}
+	}
+	
+
+
+imshow("output", canny_output);
+	waitKey(0);
+	return 0;
+
+}
\ No newline at end of file