epam / opencvDuplication

Intro

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

Learn more...

Duplication Overall

20% duplication:

417,415 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
86,473 duplicated lines

261,033 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
data (2%) --> modules (<1%)	2696	2 file pairs	details...
apps (1%) --> modules (<1%)	221	5 file pairs	details...

Open 2D force graph... Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 261,033 duplicates...

Size	#	Folders	Files	Lines	Code
1341	x 2	data/lbpcascades modules/java/common_test/res/raw	lbpcascade_frontalface.xml lbpcascade_frontalface.xml	1:1504 (100%) 1:1504 (100%)	view
805	x 2	modules/cudaobjdetect/src modules/objdetect/src	hog.cpp hog.cpp	887:1691 (54%) 1956:2760 (28%)	view
632	x 2	modules/core/include/opencv2/core/cuda modules/cudev/include/opencv2/cudev/util	vec_math.hpp vec_math.hpp	206:922 (85%) 217:933 (84%)	view
265	x 2	modules/calib3d/src modules/core/src	dls.h lda.cpp	82:506 (57%) 244:668 (40%)	view
257	x 2	modules/cudafeatures2d/src modules/features2d/src	orb.cpp orb.cpp	80:336 (44%) 376:632 (32%)	view
129	x 2	modules/imgproc/src/opencl modules/imgproc/src/opencl	cl filter2DSmall.cl filterSmall.cl	43:181 (40%) 8:146 (34%)	view
115	x 2	modules/imgproc/src modules/imgproc/src	color.cpp color.cpp	4316:4491 (2%) 4826:5000 (2%)	view
109	x 2	modules/calib3d/src modules/core/src	dls.h lda.cpp	534:737 (23%) 696:899 (16%)	view
75	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	3550:3624 (<1%) 3960:4034 (<1%)	view
74	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	3434:3507 (<1%) 4102:4175 (<1%)	view
74	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	6094:6167 (<1%) 6315:6388 (<1%)	view
73	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	5993:6065 (<1%) 6391:6463 (<1%)	view
67	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	2794:2860 (<1%) 3126:3192 (<1%)	view
67	x 2	modules/features2d/src modules/features2d/src	agast.cpp agast.cpp	2652:2718 (<1%) 2984:3050 (<1%)	view
65	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	6955:7019 (<1%) 7968:8032 (<1%)	view
65	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4781:4845 (<1%) 5539:5603 (<1%)	view
62	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	math.cu threshold.cu	1:69 (21%) 1:69 (48%)	view
60	x 2	modules/features2d/src modules/features2d/src	agast.cpp agast.cpp	2659:2718 (<1%) 5108:5167 (<1%)	view
60	x 2	modules/features2d/src modules/features2d/src	agast.cpp agast.cpp	2991:3050 (<1%) 5108:5167 (<1%)	view
60	x 2	modules/features2d/src modules/features2d/src	agast.cpp agast.cpp	1809:1868 (<1%) 4145:4204 (<1%)	view
58	x 2	modules/objdetect/src modules/objdetect/src	haar.cpp haar.cpp	917:980 (3%) 1022:1086 (3%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	5206:5261 (<1%) 5775:5830 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	6640:6695 (<1%) 7635:7690 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	6640:6695 (<1%) 7554:7609 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	6640:6695 (<1%) 8204:8259 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7554:7609 (<1%) 7635:7690 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7554:7609 (<1%) 8204:8259 (<1%)	view
56	x 2	apps/traincascade apps/traincascade	boost.cpp old_ml_inner_functions.cpp	124:206 (5%) 400:482 (5%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4861:4916 (<1%) 5206:5261 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4861:4916 (<1%) 5775:5830 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4709:4764 (<1%) 4861:4916 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4709:4764 (<1%) 5206:5261 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	4709:4764 (<1%) 5775:5830 (<1%)	view
56	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7635:7690 (<1%) 8204:8259 (<1%)	view
56	x 2	modules/imgproc/src/opencl modules/imgproc/src/opencl	cl warp_affine.cl warp_perspective.cl	1:58 (17%) 1:58 (27%)	view
54	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7745:7798 (<1%) 8080:8133 (<1%)	view
54	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	5316:5369 (<1%) 5651:5704 (<1%)	view
54	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	minmax.cu minmaxloc.cu	1:61 (35%) 1:61 (40%)	view
54	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7346:7399 (<1%) 8080:8133 (<1%)	view
54	x 2	modules/features2d/src modules/features2d/src	agast_score.cpp agast_score.cpp	7346:7399 (<1%) 7745:7798 (<1%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	norm.cu threshold.cu	1:60 (35%) 1:60 (41%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	minmaxloc.cu sum.cu	1:60 (40%) 1:60 (27%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	add_weighted.cu threshold.cu	1:60 (9%) 1:60 (41%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	minmaxloc.cu reduce.cu	1:60 (40%) 1:60 (19%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	lut.cu math.cu	1:60 (30%) 1:60 (18%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	lut.cu minmaxloc.cu	1:60 (30%) 1:60 (40%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	countnonzero.cu norm.cu	1:60 (56%) 1:60 (35%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	sum.cu threshold.cu	1:60 (27%) 1:60 (41%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	copy_make_border.cu minmaxloc.cu	1:60 (40%) 1:60 (40%)	view
53	x 2	modules/cudaarithm/src/cuda modules/cudaarithm/src/cuda	copy_make_border.cu countnonzero.cu	1:60 (40%) 1:60 (56%)	view

Duplicated Units

The list of top 39 duplicated units.

See data for all 39 unit duplicates...

Size	#	Folders	Files	Lines	Code
65	x 2	modules/core/src modules/calib3d/src	lda.cpp dls.h	755:842 593:680	view
48	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/block/detail	reduce_key_val.hpp reduce_key_val.hpp	315:371 250:306	view
47	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/block/detail	reduce.hpp reduce.hpp	190:245 222:277	view
25	x 2	modules/videoio/src modules/videoio/src	cap_v4l.cpp cap_libv4l.cpp	1223:1261 1144:1182	view
20	x 2	modules/core/src modules/imgproc/src	convert.cpp histogram.cpp	1254:1277 2098:2121	view
19	x 2	modules/videoio/src modules/videoio/src	cap_openni.cpp cap_openni2.cpp	774:797 398:421	view
19	x 2	modules/videoio/src modules/videoio/src	cap_openni.cpp cap_openni2.cpp	799:821 423:445	view
18	x 2	modules/flann/include/opencv2/flann modules/flann/include/opencv2/flann	kdtree_index.h kdtree_single_index.h	393:413 496:519	view
15	x 2	modules/core/src modules/calib3d/src	lda.cpp dls.h	859:881 697:719	view
15	x 2	modules/videoio/src modules/videoio/src	cap_v4l.cpp cap_libv4l.cpp	371:394 393:416	view
15	x 3	modules/highgui/src modules/highgui/src modules/highgui/src	window_gtk.cpp window_carbon.cpp window_w32.cpp	1526:1550 662:686 2246:2270	view
13	x 2	modules/highgui/src modules/highgui/src	window_gtk.cpp window_w32.cpp	754:776 510:532	view
13	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	246:263 310:327	view
12	x 2	modules/core/src modules/calib3d/src	lda.cpp dls.h	299:312 137:150	view
11	x 2	modules/cudev/include/opencv2/cudev/warp/detail modules/cudev/include/opencv2/cudev/block/detail	reduce_key_val.hpp reduce_key_val.hpp	96:110 106:120	view
11	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	218:231 282:295	view
10	x 2	modules/cudev/include/opencv2/cudev/warp/detail modules/cudev/include/opencv2/cudev/block/detail	reduce_key_val.hpp reduce_key_val.hpp	186:198 216:228	view
9	x 2	modules/flann/include/opencv2/flann modules/flann/include/opencv2/flann	kdtree_index.h kdtree_single_index.h	254:264 301:311	view
9	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/grid/detail	transform_detail.hpp transform.hpp	137:147 130:140	view
9	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/grid/detail	transform_detail.hpp transform.hpp	150:160 143:153	view
9	x 2	modules/core/src modules/calib3d/src	lda.cpp dls.h	845:856 683:694	view
9	x 2	modules/cudaoptflow/src modules/cudaoptflow/src	farneback.cpp tvl1flow.cpp	164:177 165:178	view
8	x 2	modules/flann/include/opencv2/flann modules/flann/include/opencv2/flann	kdtree_index.h kdtree_single_index.h	242:251 289:298	view
8	x 2	modules/core/src modules/core/src	umatrix.cpp matrix.cpp	556:565 1023:1032	view
7	x 2	modules/core/misc/java/src/java modules/core/misc/java/src/java	core+MatOfInt4.java core+MatOfInt.java	63:71 63:71	view
7	x 3	modules/core/misc/java/src/java modules/core/misc/java/src/java modules/core/misc/java/src/java	core+MatOfFloat4.java core+MatOfFloat.java core+MatOfFloat6.java	62:70 62:70 62:70	view
7	x 3	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/warp/detail modules/cudev/include/opencv2/cudev/block/detail	reduce_key_val.hpp reduce_key_val.hpp reduce_key_val.hpp	241:250 171:180 201:210	view
7	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/grid/detail	transform_detail.hpp transform.hpp	113:121 105:113	view
7	x 2	modules/core/include/opencv2/core/cuda/detail modules/cudev/include/opencv2/cudev/grid/detail	transform_detail.hpp transform.hpp	124:132 116:124	view
7	x 2	modules/core/src modules/core/src	umatrix.cpp matrix.cpp	292:300 419:427	view
7	x 2	modules/cudaimgproc/src modules/imgproc/src	generalized_hough.cpp generalized_hough.cpp	692:702 616:626	view
7	x 2	modules/cudev/include/opencv2/cudev/warp/detail modules/cudev/include/opencv2/cudev/block/detail	reduce_key_val.hpp reduce_key_val.hpp	205:213 235:243	view
7	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	147:155 199:207	view
7	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	233:244 297:308	view
7	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	322:331 139:148	view
7	x 2	modules/calib3d/src modules/calib3d/src	upnp.cpp epnp.cpp	681:689 467:475	view
6	x 2	modules/cudev/include/opencv2/cudev/warp/detail modules/cudev/include/opencv2/cudev/block/detail	reduce.hpp reduce.hpp	158:165 187:194	view
6	x 2	modules/videoio/src modules/videoio/src	cap_v4l.cpp cap_libv4l.cpp	2898:2905 1881:1888	view
6	x 2	modules/videoio/src/cap_winrt modules/videoio/src/cap_winrt	MediaStreamSink.cpp MediaSink.hpp	146:154 120:128	view