diff --git a/.DS_Store b/.DS_Store
index 9ad102e..0ed014c 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/inverse_perspective_mapping/.DS_Store b/inverse_perspective_mapping/.DS_Store
index a18425d..0f1a464 100644
Binary files a/inverse_perspective_mapping/.DS_Store and b/inverse_perspective_mapping/.DS_Store differ
diff --git a/opencv-haar-classifier/.DS_Store b/opencv-haar-classifier/.DS_Store
index 3e8164d..efe660e 100644
Binary files a/opencv-haar-classifier/.DS_Store and b/opencv-haar-classifier/.DS_Store differ
diff --git a/opencv-haar-classifier/negatives.txt b/opencv-haar-classifier/negatives.txt
index 372ee12..932a9fd 100644
--- a/opencv-haar-classifier/negatives.txt
+++ b/opencv-haar-classifier/negatives.txt
@@ -1,100 +1,100 @@
-./negative_images/78.bmp
-./negative_images/65.bmp
-./negative_images/72.bmp
-./negative_images/47.bmp
-./negative_images/22.bmp
-./negative_images/90.bmp
-./negative_images/88.bmp
+./negative_images/1.bmp
+./negative_images/10.bmp
+./negative_images/100.bmp
+./negative_images/11.bmp
+./negative_images/12.bmp
 ./negative_images/13.bmp
-./negative_images/32.bmp
 ./negative_images/14.bmp
-./negative_images/99.bmp
-./negative_images/50.bmp
+./negative_images/15.bmp
+./negative_images/16.bmp
+./negative_images/17.bmp
+./negative_images/18.bmp
 ./negative_images/19.bmp
+./negative_images/2.bmp
+./negative_images/20.bmp
+./negative_images/21.bmp
+./negative_images/22.bmp
+./negative_images/23.bmp
+./negative_images/24.bmp
+./negative_images/25.bmp
+./negative_images/26.bmp
+./negative_images/27.bmp
+./negative_images/28.bmp
+./negative_images/29.bmp
+./negative_images/3.bmp
+./negative_images/30.bmp
+./negative_images/31.bmp
+./negative_images/32.bmp
+./negative_images/33.bmp
+./negative_images/34.bmp
+./negative_images/35.bmp
+./negative_images/36.bmp
+./negative_images/37.bmp
+./negative_images/38.bmp
+./negative_images/39.bmp
+./negative_images/4.bmp
+./negative_images/40.bmp
+./negative_images/41.bmp
+./negative_images/42.bmp
+./negative_images/43.bmp
+./negative_images/44.bmp
+./negative_images/45.bmp
+./negative_images/46.bmp
+./negative_images/47.bmp
+./negative_images/48.bmp
+./negative_images/49.bmp
+./negative_images/5.bmp
+./negative_images/50.bmp
+./negative_images/51.bmp
+./negative_images/52.bmp
+./negative_images/53.bmp
 ./negative_images/54.bmp
 ./negative_images/55.bmp
 ./negative_images/56.bmp
-./negative_images/40.bmp
-./negative_images/44.bmp
-./negative_images/42.bmp
-./negative_images/81.bmp
-./negative_images/33.bmp
-./negative_images/79.bmp
-./negative_images/64.bmp
-./negative_images/16.bmp
-./negative_images/1.bmp
-./negative_images/80.bmp
-./negative_images/4.bmp
+./negative_images/57.bmp
 ./negative_images/58.bmp
-./negative_images/77.bmp
-./negative_images/37.bmp
-./negative_images/7.bmp
-./negative_images/63.bmp
-./negative_images/23.bmp
-./negative_images/9.bmp
+./negative_images/59.bmp
+./negative_images/6.bmp
+./negative_images/60.bmp
+./negative_images/61.bmp
 ./negative_images/62.bmp
-./negative_images/96.bmp
-./negative_images/100.bmp
-./negative_images/24.bmp
+./negative_images/63.bmp
+./negative_images/64.bmp
+./negative_images/65.bmp
+./negative_images/66.bmp
+./negative_images/67.bmp
+./negative_images/68.bmp
+./negative_images/69.bmp
+./negative_images/7.bmp
 ./negative_images/70.bmp
-./negative_images/46.bmp
+./negative_images/71.bmp
+./negative_images/72.bmp
+./negative_images/73.bmp
 ./negative_images/74.bmp
-./negative_images/6.bmp
-./negative_images/28.bmp
-./negative_images/85.bmp
-./negative_images/66.bmp
-./negative_images/86.bmp
-./negative_images/45.bmp
-./negative_images/59.bmp
-./negative_images/5.bmp
-./negative_images/61.bmp
-./negative_images/36.bmp
-./negative_images/87.bmp
 ./negative_images/75.bmp
-./negative_images/95.bmp
-./negative_images/21.bmp
+./negative_images/76.bmp
+./negative_images/77.bmp
+./negative_images/78.bmp
+./negative_images/79.bmp
 ./negative_images/8.bmp
-./negative_images/94.bmp
-./negative_images/31.bmp
-./negative_images/71.bmp
-./negative_images/73.bmp
-./negative_images/3.bmp
-./negative_images/29.bmp
-./negative_images/52.bmp
+./negative_images/80.bmp
+./negative_images/81.bmp
 ./negative_images/82.bmp
-./negative_images/10.bmp
-./negative_images/38.bmp
-./negative_images/26.bmp
 ./negative_images/83.bmp
+./negative_images/84.bmp
+./negative_images/85.bmp
+./negative_images/86.bmp
+./negative_images/87.bmp
+./negative_images/88.bmp
 ./negative_images/89.bmp
-./negative_images/20.bmp
-./negative_images/39.bmp
-./negative_images/60.bmp
-./negative_images/25.bmp
-./negative_images/17.bmp
-./negative_images/34.bmp
-./negative_images/30.bmp
-./negative_images/97.bmp
-./negative_images/18.bmp
-./negative_images/48.bmp
-./negative_images/43.bmp
-./negative_images/49.bmp
-./negative_images/68.bmp
-./negative_images/53.bmp
-./negative_images/51.bmp
-./negative_images/12.bmp
-./negative_images/93.bmp
-./negative_images/76.bmp
+./negative_images/9.bmp
+./negative_images/90.bmp
+./negative_images/91.bmp
 ./negative_images/92.bmp
-./negative_images/41.bmp
-./negative_images/15.bmp
-./negative_images/35.bmp
-./negative_images/11.bmp
-./negative_images/67.bmp
+./negative_images/93.bmp
+./negative_images/94.bmp
+./negative_images/95.bmp
+./negative_images/96.bmp
+./negative_images/97.bmp
 ./negative_images/98.bmp
-./negative_images/69.bmp
-./negative_images/57.bmp
-./negative_images/91.bmp
-./negative_images/84.bmp
-./negative_images/27.bmp
-./negative_images/2.bmp
+./negative_images/99.bmp
diff --git a/opencv-haar-classifier/positives.txt b/opencv-haar-classifier/positives.txt
index cffa705..5eadaad 100644
--- a/opencv-haar-classifier/positives.txt
+++ b/opencv-haar-classifier/positives.txt
@@ -1,8 +1,8 @@
 ./positive_images/1.bmp
+./positive_images/2.bmp
+./positive_images/3.bmp
 ./positive_images/4.bmp
-./positive_images/7.bmp
-./positive_images/6.bmp
 ./positive_images/5.bmp
+./positive_images/6.bmp
+./positive_images/7.bmp
 ./positive_images/8.bmp
-./positive_images/3.bmp
-./positive_images/2.bmp
diff --git a/opencv-haar-classifier/samples.txt b/opencv-haar-classifier/samples.txt
index cc5fa11..b3002e8 100644
--- a/opencv-haar-classifier/samples.txt
+++ b/opencv-haar-classifier/samples.txt
@@ -1,7 +1,8 @@
-./samples/8.bmp.vec
-./samples/6.bmp.vec
-./samples/5.bmp.vec
-./samples/4.bmp.vec
 ./samples/1.bmp.vec
-./samples/7.bmp.vec
+./samples/2.bmp.vec
 ./samples/3.bmp.vec
+./samples/4.bmp.vec
+./samples/5.bmp.vec
+./samples/6.bmp.vec
+./samples/7.bmp.vec
+./samples/8.bmp.vec
diff --git a/opencv-haar-classifier/samples/1.bmp.vec b/opencv-haar-classifier/samples/1.bmp.vec
index 6160fc7..eb2fb3e 100644
Binary files a/opencv-haar-classifier/samples/1.bmp.vec and b/opencv-haar-classifier/samples/1.bmp.vec differ
diff --git a/opencv-haar-classifier/samples/3.bmp.vec b/opencv-haar-classifier/samples/3.bmp.vec
index cc251c2..095db4e 100644
Binary files a/opencv-haar-classifier/samples/3.bmp.vec and b/opencv-haar-classifier/samples/3.bmp.vec differ
diff --git a/opencv-haar-classifier/samples/4.bmp.vec b/opencv-haar-classifier/samples/4.bmp.vec
index 9ba6467..2727024 100644
Binary files a/opencv-haar-classifier/samples/4.bmp.vec and b/opencv-haar-classifier/samples/4.bmp.vec differ
diff --git a/opencv-haar-classifier/samples/5.bmp.vec b/opencv-haar-classifier/samples/5.bmp.vec
index 034c989..f35aacb 100644
Binary files a/opencv-haar-classifier/samples/5.bmp.vec and b/opencv-haar-classifier/samples/5.bmp.vec differ
diff --git a/opencv-haar-classifier/samples/6.bmp.vec b/opencv-haar-classifier/samples/6.bmp.vec
index 9bf7c28..c961c6a 100644
Binary files a/opencv-haar-classifier/samples/6.bmp.vec and b/opencv-haar-classifier/samples/6.bmp.vec differ
diff --git a/opencv-haar-classifier/samples/7.bmp.vec b/opencv-haar-classifier/samples/7.bmp.vec
index 262cc34..74ddcb2 100644
Binary files a/opencv-haar-classifier/samples/7.bmp.vec and b/opencv-haar-classifier/samples/7.bmp.vec differ
diff --git a/test_image_haar/.DS_Store b/test_image_haar/.DS_Store
index f5947d4..f7b7dc3 100644
Binary files a/test_image_haar/.DS_Store and b/test_image_haar/.DS_Store differ
diff --git a/xt detection/.DS_Store b/xt detection/.DS_Store
index b6190be..9aeef46 100644
Binary files a/xt detection/.DS_Store and b/xt detection/.DS_Store differ
diff --git a/xt detection/lsd_1.6/lsd b/xt detection/lsd_1.6/lsd
index ba0b90c..a73c068 100755
Binary files a/xt detection/lsd_1.6/lsd and b/xt detection/lsd_1.6/lsd differ
diff --git a/xt detection/lsd_1.6/lsd_call_example b/xt detection/lsd_1.6/lsd_call_example
index 42c8af0..98fcd29 100755
Binary files a/xt detection/lsd_1.6/lsd_call_example and b/xt detection/lsd_1.6/lsd_call_example differ
diff --git a/xt detection/thinning_algorithm/guohallthinning_test b/xt detection/thinning_algorithm/guohallthinning_test
index 098aa4e..086a2a7 100755
Binary files a/xt detection/thinning_algorithm/guohallthinning_test and b/xt detection/thinning_algorithm/guohallthinning_test differ
diff --git a/xt detection/thinning_algorithm/guohallthinning_test.cpp b/xt detection/thinning_algorithm/guohallthinning_test.cpp
index b1611a4..0b89341 100644
--- a/xt detection/thinning_algorithm/guohallthinning_test.cpp	
+++ b/xt detection/thinning_algorithm/guohallthinning_test.cpp	
@@ -74,7 +74,7 @@ void thinningGuoHallIteration(bool testcase[testcase_height][testcase_width], in
     }
 }
 
-main(void)
+int main()
 {
 	IplImage* sample = cvCreateImage(cvSize(testcase_width*40,testcase_height*40), 8, 3);
 	IplImage* iteration = cvCreateImage(cvSize(testcase_width*40,testcase_height*40), 8, 3);
@@ -97,4 +97,5 @@ main(void)
 	thinningGuoHallIteration(testcase,0,iteration);
 	thinningGuoHallIteration(testcase,1,iteration);
 	cvWaitKey();
+    return 0;
 }
\ No newline at end of file
diff --git a/xt detection/thinning_algorithm/image_zhangsuenthinning b/xt detection/thinning_algorithm/image_zhangsuenthinning
index db5baaf..f0f8bc2 100755
Binary files a/xt detection/thinning_algorithm/image_zhangsuenthinning and b/xt detection/thinning_algorithm/image_zhangsuenthinning differ
diff --git a/xt detection/thinning_algorithm/zhangsuenthinning_test b/xt detection/thinning_algorithm/zhangsuenthinning_test
index 96f76f2..cdd562f 100755
Binary files a/xt detection/thinning_algorithm/zhangsuenthinning_test and b/xt detection/thinning_algorithm/zhangsuenthinning_test differ
diff --git a/xt detection/thinning_algorithm/zhangsuenthinning_test.cpp b/xt detection/thinning_algorithm/zhangsuenthinning_test.cpp
index e41048a..3a51994 100644
--- a/xt detection/thinning_algorithm/zhangsuenthinning_test.cpp	
+++ b/xt detection/thinning_algorithm/zhangsuenthinning_test.cpp	
@@ -44,8 +44,8 @@ void thinningZhangSuenIteration(bool testcase[testcase_height][testcase_width],
             bool p8 = testcase[i][j-1];
             bool p9 = testcase[i-1][j-1];
 
-            int A  = (p2 == 0 && p3 == 1) + (p3 == 0 && p4 == 1) + 
-                     (p4 == 0 && p5 == 1) + (p5 == 0 && p6 == 1) + 
+            int A  = (p2 == 0 && p3 == 1) + (p3 == 0 && p4 == 1) +
+                     (p4 == 0 && p5 == 1) + (p5 == 0 && p6 == 1) +
                      (p6 == 0 && p7 == 1) + (p7 == 0 && p8 == 1) +
                      (p8 == 0 && p9 == 1) + (p9 == 0 && p2 == 1);
             int B  = p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9;
@@ -77,7 +77,7 @@ void thinningZhangSuenIteration(bool testcase[testcase_height][testcase_width],
     }
 }
 
-main(void)
+int main()
 {
 	IplImage* sample = cvCreateImage(cvSize(testcase_width*10,testcase_height*10), 8, 3);
 	IplImage* iteration = cvCreateImage(cvSize(testcase_width*10,testcase_height*10), 8, 3);
@@ -101,8 +101,8 @@ main(void)
     {
         printf("iteration : %d\n", i + 1);
         thinningZhangSuenIteration(testcase,0,iteration);
-        thinningZhangSuenIteration(testcase,1,iteration);        
+        thinningZhangSuenIteration(testcase,1,iteration);
         cvWaitKey();
     }
     cvWaitKey();
-}
\ No newline at end of file
+}