From 37c963ee52e7838cc8d2d0e8be5485d0d33375ec Mon Sep 17 00:00:00 2001
From: USW <USW@215-01>
Date: Wed, 9 Apr 2025 12:14:01 +0900
Subject: [PATCH] =?UTF-8?q?=EB=B2=84=EA=B7=B8=20=ED=94=BD=EC=8A=A4?=
 =?UTF-8?q?=ED=95=98=EA=B8=B0?=
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---
 Homework/perspective/main.cpp                 | 44 +++++++++++++++++--
 Homework/perspective/perspective.vcxproj      |  3 ++
 .../perspective/perspective.vcxproj.filters   |  5 +++
 3 files changed, 49 insertions(+), 3 deletions(-)

diff --git a/Homework/perspective/main.cpp b/Homework/perspective/main.cpp
index bec8593..f5551ab 100644
--- a/Homework/perspective/main.cpp
+++ b/Homework/perspective/main.cpp
@@ -1,11 +1,49 @@
 #include <iostream>
-#include <array>
-#include <cstdint>
-#include <cmath>
 #include "opencv2/opencv.hpp"
 
 using namespace std;
 using namespace cv;
 
+Mat src;
+Point2f srcQuad[4], dstQuad[4];
+
+void on_mouse(int event, int x, int y, int flags, void* userdata);
+
 int main() {
+	Mat src = imread("../../resources/images/card.bmp");
+
+	namedWindow("src");
+	setMouseCallback("src", on_mouse);
+
+	imshow("src", src);
+	waitKey(0);
+
+	return 0;
+}
+
+void on_mouse(int event, int x, int y, int flags, void* userdata) {
+	static int cnt = 0;
+
+	if (event == EVENT_LBUTTONDOWN) {
+		srcQuad[cnt++ % 4] = Point2f(x, y);
+
+		circle(src, Point(x, y), 5, Scalar(0, 0, 255), -1);
+		imshow("src", src);
+
+		if (cnt % 4 == 0) {
+			int w = 200, h = 300;
+
+			dstQuad[0] = Point2f(0, 0);
+			dstQuad[1] = Point2f(w - 1, 0);
+			dstQuad[2] = Point2f(w - 1, h - 1);
+			dstQuad[3] = Point2f(0, h - 1);
+
+			Mat pers = getPerspectiveTransform(srcQuad, dstQuad);
+
+			Mat dst;
+			warpPerspective(src, dst, pers, Size(w, h));
+
+			imshow("dst", dst);
+		}
+	}
 }
\ No newline at end of file
diff --git a/Homework/perspective/perspective.vcxproj b/Homework/perspective/perspective.vcxproj
index fc6254f..dd31077 100644
--- a/Homework/perspective/perspective.vcxproj
+++ b/Homework/perspective/perspective.vcxproj
@@ -133,6 +133,9 @@
   <ItemGroup>
     <ClCompile Include="main.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <Image Include="..\..\resources\images\card.bmp" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/Homework/perspective/perspective.vcxproj.filters b/Homework/perspective/perspective.vcxproj.filters
index 2c1b3dc..8080f73 100644
--- a/Homework/perspective/perspective.vcxproj.filters
+++ b/Homework/perspective/perspective.vcxproj.filters
@@ -19,4 +19,9 @@
       <Filter>소스 파일</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <Image Include="..\..\resources\images\card.bmp">
+      <Filter>리소스 파일</Filter>
+    </Image>
+  </ItemGroup>
 </Project>
\ No newline at end of file