diff --git a/.gitignore b/.gitignore
index 1115557..eca4edf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
################################################################################
/.vs/08_SVM/v16
+/08_SVM/x64
diff --git a/08_SVM.sln b/08_SVM.sln
new file mode 100644
index 0000000..a432408
--- /dev/null
+++ b/08_SVM.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.33423.256
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "08_SVM", "08_SVM\08_SVM.vcxproj", "{4E634DD5-C0F9-4220-8974-6C607649AF61}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|x64 = Debug|x64
+ Debug|x86 = Debug|x86
+ Release|x64 = Release|x64
+ Release|x86 = Release|x86
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Debug|x64.ActiveCfg = Debug|x64
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Debug|x64.Build.0 = Debug|x64
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Debug|x86.ActiveCfg = Debug|Win32
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Debug|x86.Build.0 = Debug|Win32
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Release|x64.ActiveCfg = Release|x64
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Release|x64.Build.0 = Release|x64
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Release|x86.ActiveCfg = Release|Win32
+ {4E634DD5-C0F9-4220-8974-6C607649AF61}.Release|x86.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {BA356928-96E5-44E3-906A-F1D6DD0EBA82}
+ EndGlobalSection
+EndGlobal
diff --git a/08_SVM/08_SVM.vcxproj b/08_SVM/08_SVM.vcxproj
new file mode 100644
index 0000000..65d9a0a
--- /dev/null
+++ b/08_SVM/08_SVM.vcxproj
@@ -0,0 +1,155 @@
+
+
+
+
+ Debug
+ Win32
+
+
+ Release
+ Win32
+
+
+ Debug
+ x64
+
+
+ Release
+ x64
+
+
+
+ 16.0
+ Win32Proj
+ {4e634dd5-c0f9-4220-8974-6c607649af61}
+ My08SVM
+ 10.0
+
+
+
+ Application
+ true
+ v142
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+ Level3
+ true
+ WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
+
+
+
+ Level3
+ true
+ true
+ true
+ WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+ true
+ true
+
+
+
+
+ Level3
+ true
+ _DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+ C:\opencv-4.6.0_X64\build\include
+
+
+ Console
+ true
+ C:\opencv-4.6.0_X64\build\x64\vc15\lib
+ opencv_world460d.lib;%(AdditionalDependencies)
+
+
+
+
+ Level3
+ true
+ true
+ true
+ NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+ C:\opencv-4.6.0_X64\build\include
+
+
+ Console
+ true
+ true
+ true
+ C:\opencv-4.6.0_X64\build\x64\vc15\lib
+ opencv_world460.lib;%(AdditionalDependencies)
+
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+
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+
+
+
+
\ No newline at end of file
diff --git a/08_SVM/08_SVM.vcxproj.filters b/08_SVM/08_SVM.vcxproj.filters
new file mode 100644
index 0000000..d6962b3
--- /dev/null
+++ b/08_SVM/08_SVM.vcxproj.filters
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+
+
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+ {4FC737F1-C7A5-4376-A066-2A32D752A2FF}
+ cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx
+
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+ {93995380-89BD-4b04-88EB-625FBE52EBFB}
+ h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd
+
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+ {67DA6AB6-F800-4c08-8B7A-83BB121AAD01}
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\ No newline at end of file
diff --git a/08_SVM/08_SVM.vcxproj.user b/08_SVM/08_SVM.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/08_SVM/08_SVM.vcxproj.user
@@ -0,0 +1,4 @@
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\ No newline at end of file
diff --git a/08_SVM/digits.png b/08_SVM/digits.png
new file mode 100644
index 0000000..01cdd29
Binary files /dev/null and b/08_SVM/digits.png differ
diff --git a/08_SVM/svm_hog.cpp b/08_SVM/svm_hog.cpp
new file mode 100644
index 0000000..a495123
--- /dev/null
+++ b/08_SVM/svm_hog.cpp
@@ -0,0 +1,209 @@
+#include
+#include
+#include
+#include
+//#include
+
+#include
+#include
+
+using namespace std;
+using namespace cv;
+using namespace cv::ml;
+
+void svmplane()
+{
+ Mat train = Mat_({ 8, 2 },
+ {
+ 150, 200, 200, 250, 100, 250, 150, 300,
+ 350, 100, 400, 200, 400, 300, 350, 400 });
+ Mat label = Mat_({ 8, 1 }, { 0, 0, 0, 0, 1, 1, 1, 1 });
+
+ Ptr svm = SVM::create();
+ svm->setType(SVM::Types::C_SVC);
+ svm->setKernel(SVM::KernelTypes::RBF);
+ svm->trainAuto(train, ROW_SAMPLE, label);
+ Mat img = Mat::zeros(Size(500, 500), CV_8UC3);
+
+ for (int j = 0; j < img.rows; j++)
+ {
+ for (int i = 0; i < img.cols; i++)
+ {
+ Mat test = Mat_({ 1, 2 }, { (float)i, (float)j });
+ int res = cvRound(svm->predict(test));
+ if (res == 0)
+ img.at(j, i) = Vec3b(128, 128, 255); // R
+ else
+ img.at(j, i) = Vec3b(128, 255, 128); // G
+ }
+ }
+
+ for (int i = 0; i < train.rows; i++)
+ {
+ int x = cvRound(train.at(i, 0));
+ int y = cvRound(train.at(i, 1));
+ int l = label.at(i, 0);
+ if (1 == 0)
+ circle(img, Point(x, y), 5, Scalar(0, 0, 128), -1, LINE_AA); // R
+ else
+ circle(img, Point(x, y), 5, Scalar(0, 128, 0), -1, LINE_AA); // G
+ }
+
+ imshow("svm", img);
+ imwrite("svm_result1.png", img);
+ waitKey();
+
+ return;
+}
+
+
+// //
+Ptr train_hog_svm(const HOGDescriptor& hog);
+void on_mouse(int event, int X, int y, int flags, void* userdata);
+
+void svmdigits()
+{
+#if _DEBUG
+ cout << "svndigits.exe should be built as Release mode !" << endl;
+ return;
+#endif
+
+ HOGDescriptor hog(Size(20, 20), Size(10, 10), Size(5, 5), Size(5, 5), 9);
+ Ptr svm = train_hog_svm(hog);
+
+ if (svm.empty())
+ {
+ cerr << "Training failed! " << endl;
+ return;
+ }
+
+ Mat img = Mat::zeros(400, 400, CV_8U);
+ imshow("img", img);
+ setMouseCallback("img", on_mouse, (void*)&img);
+
+ while (true)
+ {
+ int c = waitKey();
+
+ if (c == 27)
+ break;
+ else if (c == ' ')
+ {
+ Mat img_resize;
+ resize(img, img_resize, Size(20, 20), 0, 0, INTER_AREA);
+
+ vector desc;
+ hog.compute(img_resize, desc);
+ Mat desc_mat(desc);
+ int res = cvRound(svm->predict(desc_mat.t()));
+ cout << res << endl;
+
+ img.setTo(0);
+ imshow("img", img);
+ }
+ }
+
+ return;
+}
+
+Ptr train_hog_svm(const HOGDescriptor& hog)
+{
+ Mat digits = imread("digits.png", IMREAD_GRAYSCALE);
+
+ if (digits.empty())
+ {
+ cerr << "Image load failed!" << endl;
+ return 0;
+ }
+
+ Mat train_hog, train_labels;
+
+ for (int j = 0; j < 50; j++)
+ {
+ for (int i = 0; i < 100; i++)
+ {
+ Mat roi = digits(Rect(i * 20, j * 20, 20, 20));
+ vector desc;
+
+ hog.compute(roi, desc);
+ Mat desc_mat(desc);
+
+ train_hog.push_back(desc_mat.t());
+ train_labels.push_back(j / 5);
+ }
+ }
+
+ Ptr svm = SVM::create();
+ svm->setType(SVM::Types::C_SVC);
+ svm->setKernel(SVM::KernelTypes::RBF);
+ svm->setC(2.5);
+ svm->setGamma(0.50625);
+ svm->train(train_hog, ROW_SAMPLE, train_labels);
+
+ return svm;
+}
+
+Point ptPrev(-1, -1);
+void on_mouse(int event, int x, int y, int flags, void* userdata)
+{
+ Mat img = *(Mat*)userdata;
+
+ if (event == EVENT_LBUTTONDOWN)
+ {
+ ptPrev = Point(x, y);
+ }
+ else if (event == EVENT_LBUTTONUP)
+ {
+ ptPrev = Point(-1, -1);
+ }
+ else if (event == EVENT_MOUSEMOVE && (flags & EVENT_FLAG_LBUTTON))
+ {
+ line(img, ptPrev, Point(x, y), Scalar::all(255), 40, LINE_AA, 0);
+ ptPrev = Point(x, y);
+ imshow("img", img);
+ imwrite("svm_result2.png", img);
+ }
+}
+
+// //
+void hog()
+{
+ VideoCapture cap("vtest.avi");
+ if (!cap.isOpened())
+ {
+ cerr << "Video open failed!" << endl;
+ return;
+ }
+
+ HOGDescriptor hog;
+ hog.setSVMDetector(HOGDescriptor::getDefaultPeopleDetector());
+
+ Mat frame;
+ while (true)
+ {
+ cap >> frame;
+ if (frame.empty())
+ break;
+
+ vector detected;
+ hog.detectMultiScale(frame, detected);
+
+ for (Rect r : detected) {
+ Scalar c = Scalar(rand() % 256, rand() % 256, rand() % 256);
+ rectangle(frame, r, c, 3);
+ }
+
+ imshow("frame", frame);
+
+ if (waitKey(10) == 27)
+ break;
+ }
+}
+
+
+int main()
+{
+ svmplane();
+ svmdigits();
+ //hog();
+}
\ No newline at end of file
diff --git a/08_SVM/svm_result1.png b/08_SVM/svm_result1.png
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diff --git a/08_SVM/svm_result2.png b/08_SVM/svm_result2.png
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diff --git a/08_SVM/vtest.avi b/08_SVM/vtest.avi
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diff --git a/x64/Debug/08_SVM.exe b/x64/Debug/08_SVM.exe
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diff --git a/x64/Debug/opencv_world460d.dll b/x64/Debug/opencv_world460d.dll
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diff --git a/x64/Release/08_SVM.exe b/x64/Release/08_SVM.exe
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diff --git a/x64/Release/opencv_world460.dll b/x64/Release/opencv_world460.dll
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