From 96fc17b99d56eb636c894c5be9ab39bfdb4ba454 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sat, 27 Aug 2022 00:55:38 -0400
Subject: Initial code dump.

---
 tests/CMakeLists.txt                   |  31 +++++
 tests/compressed_vector.cpp            |  72 +++++++++++
 tests/deduper_legacy.cpp               | 194 ++++++++++++++++++++++++++++
 tests/image_util_tests.cpp             |  46 +++++++
 tests/img/contrh.png                   | Bin 0 -> 681 bytes
 tests/img/luxmarket_tshirt01.jpg       | Bin 0 -> 41128 bytes
 tests/img/luxmarket_tshirt01_sal.jpg   | Bin 0 -> 24646 bytes
 tests/img/luxmarket_tshirt01_sheum.jpg | Bin 0 -> 16128 bytes
 tests/img/pic-a-0.jpg                  | Bin 0 -> 13946 bytes
 tests/img/pic-a-1.jpg                  | Bin 0 -> 27407 bytes
 tests/img/wrongextension.gif           |   1 +
 tests/img/wrongextension.jpg           | Bin 0 -> 151051 bytes
 tests/img/x.jpg                        | Bin 0 -> 202454 bytes
 tests/img/y.png                        | Bin 0 -> 51465 bytes
 tests/img/z.jpg                        | Bin 0 -> 130763 bytes
 tests/signature_test.cpp               |  20 +++
 tests/testdrive.cpp                    | 226 +++++++++++++++++++++++++++++++++
 17 files changed, 590 insertions(+)
 create mode 100644 tests/CMakeLists.txt
 create mode 100644 tests/compressed_vector.cpp
 create mode 100644 tests/deduper_legacy.cpp
 create mode 100644 tests/image_util_tests.cpp
 create mode 100644 tests/img/contrh.png
 create mode 100644 tests/img/luxmarket_tshirt01.jpg
 create mode 100644 tests/img/luxmarket_tshirt01_sal.jpg
 create mode 100644 tests/img/luxmarket_tshirt01_sheum.jpg
 create mode 100644 tests/img/pic-a-0.jpg
 create mode 100644 tests/img/pic-a-1.jpg
 create mode 120000 tests/img/wrongextension.gif
 create mode 100644 tests/img/wrongextension.jpg
 create mode 100644 tests/img/x.jpg
 create mode 100644 tests/img/y.png
 create mode 100644 tests/img/z.jpg
 create mode 100644 tests/signature_test.cpp
 create mode 100644 tests/testdrive.cpp

(limited to 'tests')

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..2190875
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,31 @@
+add_executable(compressed_vector compressed_vector.cpp)
+target_link_libraries(compressed_vector
+  ${OpenCV_LIBS}
+  xsig
+)
+
+add_executable(image_util_tests image_util_tests.cpp)
+target_link_libraries(image_util_tests
+  ${OpenCV_LIBS}
+  xsig
+)
+
+add_executable(signature_test signature_test.cpp)
+target_link_libraries(signature_test
+  ${OpenCV_LIBS}
+  xsig
+)
+
+#add_executable(deduper_legacy deduper_legacy.cpp)
+#target_link_libraries(deduper_legacy
+#  ${OpenCV_LIBS}
+#  ${CMAKE_THREAD_LIBS_INIT}
+#  xsig
+#)
+
+add_executable(testdrive testdrive.cpp)
+target_link_libraries(testdrive
+  ${OpenCV_LIBS}
+  ${CMAKE_THREAD_LIBS_INIT}
+  xsig
+)
diff --git a/tests/compressed_vector.cpp b/tests/compressed_vector.cpp
new file mode 100644
index 0000000..a5d76e4
--- /dev/null
+++ b/tests/compressed_vector.cpp
@@ -0,0 +1,72 @@
+#include "compressed_vector.hpp"
+
+#include <cstdio>
+#include <cstdlib>
+#include <ctime>
+#include <vector>
+#include <string>
+#include <stdexcept>
+
+int main()
+{
+    compressed_vector<uint8_t, 3> cv;
+    compressed_vector<uint8_t, 3> cv2;
+    std::vector<uint8_t> v;
+    srand(time(NULL));
+    for (int i = 0; i < 100; ++i)
+    {
+        int r = rand() % 8;
+        cv.push_back(r);
+        v.push_back(r);
+    }
+    for (int i = 0; i < 100; ++i)
+    {
+        if (cv.get(i) != v[i])
+        {
+            printf("%u <=> %u @ %d\n", cv.get(i), v[i], i);
+            throw std::runtime_error(std::to_string(__LINE__));
+        }
+    }
+    for (int i = 0; i < 1000; ++i)
+    {
+        if (rand() % 3)
+        {
+            int r = rand() % 8;
+            cv.push_back(r);
+            v.push_back(r);
+        }
+        else
+        {
+            if (cv.back() != v.back())
+                throw std::runtime_error(std::to_string(__LINE__));
+            cv.pop_back();
+            v.pop_back();
+        }
+    }
+    if (cv.size() != v.size())
+        throw std::runtime_error(std::to_string(__LINE__));
+    for (size_t i = 0; i < v.size(); ++i)
+    {
+        if (cv.get(i) != v[i])
+        {
+            printf("%u <=> %u @ %lu\n", cv.get(i), v[i], i);
+            throw std::runtime_error(std::to_string(__LINE__));
+        }
+        cv2.push_back(cv.get(i));
+    }
+    for (size_t i = 0; i < v.size(); ++i)
+    {
+        if (cv.get(i) != cv2.get(i))
+        {
+            throw std::runtime_error(std::to_string(__LINE__));
+        }
+    }
+    size_t h1 = compressed_vector_hash<uint8_t, 3>{}(cv);
+    size_t h2 = compressed_vector_hash<uint8_t, 3>{}(cv2);
+    if (h1 != h2)
+    {
+        printf("%lu <=> %lu\n", h1, h2);
+        throw std::runtime_error(std::to_string(__LINE__));
+    }
+    return 0;
+}
diff --git a/tests/deduper_legacy.cpp b/tests/deduper_legacy.cpp
new file mode 100644
index 0000000..bcd8514
--- /dev/null
+++ b/tests/deduper_legacy.cpp
@@ -0,0 +1,194 @@
+#include "signature.hpp"
+
+#include <cstdio>
+#include <cstring>
+
+#include <filesystem>
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+
+#include <getopt.h>
+
+#include "thread_pool.hpp"
+
+int ctr;
+int recursive;
+int njobs=1;
+double threshold=0.3;
+std::vector<std::string> paths;
+
+int parse_arguments(int argc,char **argv)
+{
+	recursive=0;
+	int help=0;
+	option longopt[]=
+	{
+		{"recursive",no_argument      ,&recursive,1},
+//		{"destdir"  ,required_argument,0         ,'D'},
+		{"jobs"     ,required_argument,0         ,'j'},
+		{"threshold",required_argument,0         ,'d'},
+		{"help"     ,no_argument      ,&help     ,1},
+		{0          ,0                ,0         ,0}
+	};
+	while(1)
+	{
+		int idx=0;
+		int c=getopt_long(argc,argv,"rhj:d:",longopt,&idx);
+		if(!~c)break;
+		switch(c)
+		{
+			case 0:
+				if(longopt[idx].flag)break;
+				if(std::string("jobs")==longopt[idx].name)
+				sscanf(optarg,"%d",&njobs);
+				if(std::string("threshold")==longopt[idx].name)
+				sscanf(optarg,"%lf",&threshold);
+			break;
+			case 'r':
+				recursive=1;
+			break;
+			case 'h':
+				help=1;
+			break;
+			case 'j':
+				sscanf(optarg,"%d",&njobs);
+			break;
+			case 'd':
+				sscanf(optarg,"%lf",&threshold);
+			break;
+		}
+	}
+	for(;optind<argc;++optind)
+		paths.push_back(argv[optind]);
+	if(help||argc<2)
+	{
+		printf(
+		"Usage: %s [OPTION] PATH...\n"
+		"Detect potentially duplicate images in PATHs and optionally perform an action on them.\n\n"
+		" -h, --help        Display this help message and exit.\n"
+		" -r, --recursive   Recurse into all directories.\n"
+		" -j, --jobs        Number of concurrent tasks to run at once.\n"
+		" -d, --threshold   Threshold distance below which images will be considered similar.\n"
+		,argv[0]
+		);
+		return 1;
+	}
+	if(threshold>1||threshold<0)
+	{
+		puts("Invalid threshold value.");
+		return 2;
+	}
+	if(threshold<1e-6)threshold=1e-6;
+	if(!paths.size())
+	{
+		puts("Missing image path.");
+		return 2;
+	}
+	return 0;
+}
+
+void build_file_list(std::filesystem::path path,bool recursive,std::vector<std::string>&out)
+{
+	if(recursive)
+	{
+		auto dirit=std::filesystem::recursive_directory_iterator(path);
+		for(auto &p:dirit)
+		{
+			FILE* fp=fopen(p.path().c_str(),"r");
+			char c[8];
+			fread((void*)c,1,6,fp);
+			if(!memcmp(c,"\x89PNG\r\n",6)||!memcmp(c,"\xff\xd8\xff",3))
+				out.push_back(p.path().string());
+			fclose(fp);
+		}
+	}
+	else
+	{
+		auto dirit=std::filesystem::directory_iterator(path);
+		for(auto &p:dirit)
+		{
+			FILE* fp=fopen(p.path().c_str(),"r");
+			char c[8];
+			fread((void*)c,1,6,fp);
+			if(!memcmp(c,"\x89PNG\r\n",6)||!memcmp(c,"\xff\xd8\xff",3))
+				out.push_back(p.path().string());
+			fclose(fp);
+		}
+	}
+}
+
+void compute_signature_vectors(const std::vector<std::string>&files,std::vector<signature>&output)
+{
+	thread_pool tp(njobs);
+	for(size_t i=0;i<files.size();++i)
+	{
+		auto job_func=[&](int thid,size_t id){
+			fprintf(stderr,"spawned: on thread#%d, file#%lu (%s)\n",thid,id,files[id].c_str());
+                        output[id]=signature::from_file(files[id].c_str());
+			fprintf(stderr,"done: file#%lu\n",id);
+                        output[id].length();
+			printf("%d/%lu\r",++ctr,files.size());
+			fflush(stdout);
+		};
+		tp.create_task(job_func,i);
+	}
+	tp.wait();
+}
+
+void compare_signature_vectors(const std::vector<signature>&vec,std::vector<std::tuple<size_t,size_t,double>>&out)
+{
+	thread_pool tp(njobs);
+	for(size_t i=0;i<vec.size();++i){if (vec[i].length() < 0) continue;
+	for(size_t j=i+1;j<vec.size();++j)
+	{
+                if (vec[j].length() < 0) continue;
+		auto job_func=[&](int thid,size_t ida,size_t idb){
+			fprintf(stderr,"spawned: on thread#%d, file#%lu<->file#%lu\n",thid,ida,idb);
+			if(true)
+			{
+				double d=vec[ida].distance(vec[idb]);
+                                double l=vec[ida].length()+vec[idb].length();
+                                d/=l;
+				if(d<threshold)out.emplace_back(ida,idb,d);
+				fprintf(stderr,"done:file#%lu<->file#%lu: %lf\n",ida,idb,d);
+			}
+			printf("%d/%lu\r",++ctr,vec.size()*(vec.size()-1)/2);
+			fflush(stdout);
+		};
+		tp.create_task(job_func,i,j);
+	}}
+	tp.wait();
+}
+
+int main(int argc,char** argv)
+{
+	if(int pr=parse_arguments(argc,argv))return pr-1;
+	puts("building list of files to compare...");
+	std::vector<std::string> x;
+	for(auto&p:paths)
+		build_file_list(p,recursive,x);
+	printf("%lu files to compare.\n",x.size());
+	puts("computing signature vectors...");
+	std::vector<signature> cvecs;
+	cvecs.resize(x.size());
+	compute_signature_vectors(x,cvecs);
+	/*for(auto &v:cvecs)
+	{
+		fprintf(stderr,"%lu:",v.sizeof_vec);
+		for(size_t i=0;i<v.sizeof_vec;++i)
+		fprintf(stderr," %d",v.vec[i]);
+		fprintf(stderr,"\n");
+	}*/
+	ctr=0;
+	puts("\ncomparing signature vectors...");
+	std::vector<std::tuple<size_t,size_t,double>> r;
+	compare_signature_vectors(cvecs,r);
+	puts("");
+	for(auto &t:r)
+		printf("%s<->%s: %lf\n",x[std::get<0>(t)].c_str(),x[std::get<1>(t)].c_str(),std::get<2>(t));
+	printf("%lu similar images.",r.size());
+	cvecs.clear();
+	return 0;
+}
diff --git a/tests/image_util_tests.cpp b/tests/image_util_tests.cpp
new file mode 100644
index 0000000..af77f75
--- /dev/null
+++ b/tests/image_util_tests.cpp
@@ -0,0 +1,46 @@
+#include "imageutil.hpp"
+
+#include <cstdio>
+#include <string>
+
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+
+int main(int argc, char** argv)
+{
+    if (argc < 2)
+    {
+        printf("usage: %s <image file>\n", argv[0]);
+        return 1;
+    }
+    cv::Mat i = cv::imread(argv[1], cv::IMREAD_UNCHANGED);
+    if (i.data == NULL)
+    {
+        printf("invalid image.\n");
+        return 1;
+    }
+    cv::Mat fi, bw;
+    double sc = 1;
+    switch (i.depth())
+    {
+        case CV_8U: sc = 1. / 255; break;
+        case CV_16U: sc = 1. / 65535; break;
+    }
+    i.convertTo(fi, CV_32F, sc);
+    if (fi.channels() == 4)
+        fi = image_util::blend_white(fi);
+    cv::cvtColor(fi, bw, cv::COLOR_RGB2GRAY);
+    cv::imshow(std::string("test"), bw);
+    cv::Range xr, yr;
+    double contrast_threshold = 0.05;
+    double max_crop_ratio = 0.25;
+    xr = image_util::crop_axis(bw, 0, contrast_threshold, max_crop_ratio);
+    yr = image_util::crop_axis(bw, 1, contrast_threshold, max_crop_ratio);
+    cv::Mat cfi = image_util::crop(bw, contrast_threshold, max_crop_ratio);
+    cv::imshow(std::string("cropped"), cfi);
+    printf("xxx [%d, %d) [%d, %d)\n", yr.start, yr.end, xr.start, xr.end);
+    puts("press q to quit.");
+    while (cv::waitKey(0) != 'q');
+    return 0;
+}
diff --git a/tests/img/contrh.png b/tests/img/contrh.png
new file mode 100644
index 0000000..e703342
Binary files /dev/null and b/tests/img/contrh.png differ
diff --git a/tests/img/luxmarket_tshirt01.jpg b/tests/img/luxmarket_tshirt01.jpg
new file mode 100644
index 0000000..ffaf7eb
Binary files /dev/null and b/tests/img/luxmarket_tshirt01.jpg differ
diff --git a/tests/img/luxmarket_tshirt01_sal.jpg b/tests/img/luxmarket_tshirt01_sal.jpg
new file mode 100644
index 0000000..cb0cefe
Binary files /dev/null and b/tests/img/luxmarket_tshirt01_sal.jpg differ
diff --git a/tests/img/luxmarket_tshirt01_sheum.jpg b/tests/img/luxmarket_tshirt01_sheum.jpg
new file mode 100644
index 0000000..185393c
Binary files /dev/null and b/tests/img/luxmarket_tshirt01_sheum.jpg differ
diff --git a/tests/img/pic-a-0.jpg b/tests/img/pic-a-0.jpg
new file mode 100644
index 0000000..3dd4a3b
Binary files /dev/null and b/tests/img/pic-a-0.jpg differ
diff --git a/tests/img/pic-a-1.jpg b/tests/img/pic-a-1.jpg
new file mode 100644
index 0000000..95f0e77
Binary files /dev/null and b/tests/img/pic-a-1.jpg differ
diff --git a/tests/img/wrongextension.gif b/tests/img/wrongextension.gif
new file mode 120000
index 0000000..151d738
--- /dev/null
+++ b/tests/img/wrongextension.gif
@@ -0,0 +1 @@
+/home/chrisoft/devel/deduper/tests/img/wrongextension.jpg
\ No newline at end of file
diff --git a/tests/img/wrongextension.jpg b/tests/img/wrongextension.jpg
new file mode 100644
index 0000000..e699209
Binary files /dev/null and b/tests/img/wrongextension.jpg differ
diff --git a/tests/img/x.jpg b/tests/img/x.jpg
new file mode 100644
index 0000000..44574fc
Binary files /dev/null and b/tests/img/x.jpg differ
diff --git a/tests/img/y.png b/tests/img/y.png
new file mode 100644
index 0000000..2a24968
Binary files /dev/null and b/tests/img/y.png differ
diff --git a/tests/img/z.jpg b/tests/img/z.jpg
new file mode 100644
index 0000000..5e81d31
Binary files /dev/null and b/tests/img/z.jpg differ
diff --git a/tests/signature_test.cpp b/tests/signature_test.cpp
new file mode 100644
index 0000000..0b6b1f9
--- /dev/null
+++ b/tests/signature_test.cpp
@@ -0,0 +1,20 @@
+#include <cstdio>
+#include <vector>
+#include "signature.hpp"
+//#include <opencv2/highgui.hpp>
+int main()
+{
+    std::vector<signature> a;
+    a.push_back(std::move(signature::from_file("img/x.jpg")));
+    a.push_back(std::move(signature::from_file("img/z.jpg")));
+    for (size_t i = 0; i < a.size(); ++i)
+    for (size_t j = 0; j < a.size(); ++j)
+    {
+        printf("%lu <-> %lu:", i, j);
+        double d = a[i].distance(a[j]);
+        double l = a[i].length() + a[j].length();
+        printf("%f\n", d / l);
+    }
+    //while (cv::waitKey(0) != 'q');
+    return 0;
+}
diff --git a/tests/testdrive.cpp b/tests/testdrive.cpp
new file mode 100644
index 0000000..c104e8a
--- /dev/null
+++ b/tests/testdrive.cpp
@@ -0,0 +1,226 @@
+#include "signature.hpp"
+
+#include <cstdio>
+#include <cstring>
+
+#include <filesystem>
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+#include <thread>
+
+#include <opencv2/core.hpp>
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/imgproc.hpp>
+
+#include <getopt.h>
+
+#include "thread_pool.hpp"
+
+int ctr;
+int recursive;
+int njobs=1;
+double threshold=0.3;
+std::vector<std::string> paths;
+std::vector<std::string> files;
+
+int nsliceh = 3;
+int nslicev = 3;
+
+struct sig_eq
+{
+    bool operator()(const signature& a, const signature& b) const
+    {
+        //return a.distance(b) < 0.1;
+        return a == b;
+    }
+};
+
+typedef std::pair<size_t, int> slice_info;
+std::unordered_map<signature, std::vector<slice_info>, signature_hash, sig_eq> slices;
+std::vector<signature> signatures;
+std::mutex sigmtx;
+std::vector<std::pair<size_t, size_t>> out;
+
+int parse_arguments(int argc,char **argv)
+{
+    recursive=0;
+    int help=0;
+    option longopt[]=
+    {
+        {"recursive",no_argument      ,&recursive,1},
+//      {"destdir"  ,required_argument,0         ,'D'},
+        {"jobs"     ,required_argument,0         ,'j'},
+//      {"threshold",required_argument,0         ,'d'},
+        {"help"     ,no_argument      ,&help     ,1},
+        {0          ,0                ,0         ,0}
+    };
+    while(1)
+    {
+        int idx=0;
+        int c=getopt_long(argc,argv,"rhj:",longopt,&idx);
+        if(!~c)break;
+        switch(c)
+        {
+            case 0:
+                if(longopt[idx].flag)break;
+                if(std::string("jobs")==longopt[idx].name)
+                sscanf(optarg,"%d",&njobs);
+                //if(std::string("threshold")==longopt[idx].name)
+                //sscanf(optarg,"%lf",&threshold);
+            break;
+            case 'r':
+                recursive=1;
+            break;
+            case 'h':
+                help=1;
+            break;
+            case 'j':
+                sscanf(optarg,"%d",&njobs);
+            break;
+            case 'd':
+                sscanf(optarg,"%lf",&threshold);
+            break;
+        }
+    }
+    for(;optind<argc;++optind)
+        paths.push_back(argv[optind]);
+    if(help||argc<2)
+    {
+        printf(
+        "Usage: %s [OPTION] PATH...\n"
+        "Detect potentially duplicate images in PATHs and optionally perform an action on them.\n\n"
+        " -h, --help        Display this help message and exit.\n"
+        " -r, --recursive   Recurse into all directories.\n"
+        " -j, --jobs        Number of concurrent tasks to run at once.\n"
+//      " -d, --threshold   Threshold distance below which images will be considered similar.\n"
+        ,argv[0]
+        );
+        return 1;
+    }
+    if(threshold>1||threshold<0)
+    {
+        puts("Invalid threshold value.");
+        return 2;
+    }
+    if(threshold<1e-6)threshold=1e-6;
+    if(!paths.size())
+    {
+        puts("Missing image path.");
+        return 2;
+    }
+    return 0;
+}
+
+void build_file_list(std::filesystem::path path,bool recursive,std::vector<std::string>&out)
+{
+    if(recursive)
+    {
+        auto dirit=std::filesystem::recursive_directory_iterator(path);
+        for(auto &p:dirit)
+        {
+            FILE* fp = fopen(p.path().c_str(),"r");
+            char c[8];
+            size_t sz = fread((void*)c,1,6,fp);
+                        if (sz < 6) continue;
+            if(!memcmp(c,"\x89PNG\r\n",6)||!memcmp(c,"\xff\xd8\xff",3))
+                out.push_back(p.path().string());
+            fclose(fp);
+        }
+    }
+    else
+    {
+        auto dirit=std::filesystem::directory_iterator(path);
+        for(auto &p:dirit)
+        {
+            FILE* fp = fopen(p.path().c_str(),"r");
+            char c[8];
+            size_t sz = fread((void*)c,1,6,fp);
+                        if (sz < 6) continue;
+            if(!memcmp(c,"\x89PNG\r\n",6)||!memcmp(c,"\xff\xd8\xff",3))
+                out.push_back(p.path().string());
+            fclose(fp);
+        }
+    }
+}
+
+void job_func(int thid, size_t id)
+{
+    cv::Mat img = cv::imread(files[id].c_str(), cv::IMREAD_UNCHANGED);
+    signature s = signature::from_cvmatrix(img);
+    int ssw = img.size().width / nsliceh;
+    int ssh = img.size().height / nslicev;
+    std::vector<signature> subsigs;
+    for (int i = 0; i < nsliceh; ++i)
+    for (int j = 0; j < nslicev; ++j)
+    {
+        int l = i * ssw;
+        int r = (i == nsliceh) ? img.size().width : (i + 1) * ssw;
+        int t = j * ssh;
+        int b = (j == nslicev) ? img.size().height : (j + 1) * ssh;
+        subsigs.push_back(std::move(signature::from_cvmatrix(img(cv::Range(t, b), cv::Range(l, r)))));
+    }
+
+    printf("%d %lu\r", thid, id);
+    fflush(stdout);
+
+    sigmtx.lock();
+    std::vector<bool> v;
+    v.resize(files.size());
+    for (int i = 0; i < nsliceh * nslicev; ++i)
+    {
+        auto it = slices.find(subsigs[i]);
+        if (it != slices.end())
+        {
+            for (auto &si : it->second)
+            {
+                if (si.second == i)
+                {
+                    if (!v[si.first] && s.distance(signatures[si.first]) < threshold)
+                    {
+                        out.emplace_back(id, std::move(si.first));
+                    }
+                    v[si.first] = true;
+                }
+            }
+            it->second.emplace_back(id, i);
+        }
+        else
+        {
+            slices.emplace(std::move(subsigs[i].clone()),
+                           std::vector<slice_info>{{id, i}});
+        }
+    }
+    signatures[id] = std::move(s);
+    sigmtx.unlock();
+}
+
+void run()
+{
+    thread_pool tp(njobs);
+    for(size_t i=0;i<files.size();++i)
+    {
+        tp.create_task(job_func,i);
+    }
+    tp.wait();
+}
+
+int main(int argc,char** argv)
+{
+    if(int pr=parse_arguments(argc,argv))return pr-1;
+    puts("building list of files to compare...");
+    for(auto&p:paths)
+        build_file_list(p,recursive,files);
+    printf("%lu files to compare.\n",files.size());
+    puts("computing signature vectors...");
+
+    signatures.resize(files.size());
+    run();
+    for(auto &p : out)
+    {
+        printf("%s %s %f\n", files[p.first].c_str(), files[p.second].c_str(), signatures[p.first].distance(signatures[p.second]));
+    }
+    return 0;
+}
+
-- 
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