设矩形1大小为100x100，矩形2从左上角顶点重合开始，向右滑动250个单位。

c++源码(基于opencv3.4.0)

float iou(const cv::Rect& r1, const cv::Rect& r2){
    return float((r1&r2).area())/float((r1|r2).area());
}

float giou(const cv::Rect& r1, const cv::Rect& r2){
    cv::Rect c=r1|r2;
    float ca=c.area();
    return iou(r1,r2)-(ca-(r1.area()+r2.area()-(r1&r2).area()))/ca;
}

    cv::Rect r1(,,,);

    for(int i=;i<;++i){

        cv::Rect r2(i,,,);

        fprintf(stderr," iou = %.4f\t",iou(r1,r2));

        fprintf(stderr,"giou = %.4f\n",giou(r1,r2));

    }

当矩形2大小为100x100时：

1. iou = 1.0000    giou = 1.0000
2. iou = 0.9802    giou = 0.9802
3. iou = 0.9608    giou = 0.9608
4. iou = 0.9417    giou = 0.9417
5. iou = 0.9231    giou = 0.9231
6. iou = 0.9048    giou = 0.9048
7. iou = 0.8868    giou = 0.8868
8. iou = 0.8692    giou = 0.8692
9. iou = 0.8519    giou = 0.8519
10. iou = 0.8349    giou = 0.8349
11. iou = 0.8182    giou = 0.8182
12. iou = 0.8018    giou = 0.8018
13. iou = 0.7857    giou = 0.7857
14. iou = 0.7699    giou = 0.7699
15. iou = 0.7544    giou = 0.7544
16. iou = 0.7391    giou = 0.7391
17. iou = 0.7241    giou = 0.7241
18. iou = 0.7094    giou = 0.7094
19. iou = 0.6949    giou = 0.6949
20. iou = 0.6807    giou = 0.6807
21. iou = 0.6667    giou = 0.6667
22. iou = 0.6529    giou = 0.6529
23. iou = 0.6393    giou = 0.6393
24. iou = 0.6260    giou = 0.6260
25. iou = 0.6129    giou = 0.6129
26. iou = 0.6000    giou = 0.6000
27. iou = 0.5873    giou = 0.5873
28. iou = 0.5748    giou = 0.5748
29. iou = 0.5625    giou = 0.5625
30. iou = 0.5504    giou = 0.5504
31. iou = 0.5385    giou = 0.5385
32. iou = 0.5267    giou = 0.5267
33. iou = 0.5152    giou = 0.5152
34. iou = 0.5038    giou = 0.5038
35. iou = 0.4925    giou = 0.4925
36. iou = 0.4815    giou = 0.4815
37. iou = 0.4706    giou = 0.4706
38. iou = 0.4599    giou = 0.4599
39. iou = 0.4493    giou = 0.4493
40. iou = 0.4388    giou = 0.4388
41. iou = 0.4286    giou = 0.4286
42. iou = 0.4184    giou = 0.4184
43. iou = 0.4085    giou = 0.4085
44. iou = 0.3986    giou = 0.3986
45. iou = 0.3889    giou = 0.3889
46. iou = 0.3793    giou = 0.3793
47. iou = 0.3699    giou = 0.3699
48. iou = 0.3605    giou = 0.3605
49. iou = 0.3514    giou = 0.3514
50. iou = 0.3423    giou = 0.3423
51. iou = 0.3333    giou = 0.3333
52. iou = 0.3245    giou = 0.3245
53. iou = 0.3158    giou = 0.3158
54. iou = 0.3072    giou = 0.3072
55. iou = 0.2987    giou = 0.2987
56. iou = 0.2903    giou = 0.2903
57. iou = 0.2821    giou = 0.2821
58. iou = 0.2739    giou = 0.2739
59. iou = 0.2658    giou = 0.2658
60. iou = 0.2579    giou = 0.2579
61. iou = 0.2500    giou = 0.2500
62. iou = 0.2422    giou = 0.2422
63. iou = 0.2346    giou = 0.2346
64. iou = 0.2270    giou = 0.2270
65. iou = 0.2195    giou = 0.2195
66. iou = 0.2121    giou = 0.2121
67. iou = 0.2048    giou = 0.2048
68. iou = 0.1976    giou = 0.1976
69. iou = 0.1905    giou = 0.1905
70. iou = 0.1834    giou = 0.1834
71. iou = 0.1765    giou = 0.1765
72. iou = 0.1696    giou = 0.1696
73. iou = 0.1628    giou = 0.1628
74. iou = 0.1561    giou = 0.1561
75. iou = 0.1494    giou = 0.1494
76. iou = 0.1429    giou = 0.1429
77. iou = 0.1364    giou = 0.1364
78. iou = 0.1299    giou = 0.1299
79. iou = 0.1236    giou = 0.1236
80. iou = 0.1173    giou = 0.1173
81. iou = 0.1111    giou = 0.1111
82. iou = 0.1050    giou = 0.1050
83. iou = 0.0989    giou = 0.0989
84. iou = 0.0929    giou = 0.0929
85. iou = 0.0870    giou = 0.0870
86. iou = 0.0811    giou = 0.0811
87. iou = 0.0753    giou = 0.0753
88. iou = 0.0695    giou = 0.0695
89. iou = 0.0638    giou = 0.0638
90. iou = 0.0582    giou = 0.0582
91. iou = 0.0526    giou = 0.0526
92. iou = 0.0471    giou = 0.0471
93. iou = 0.0417    giou = 0.0417
94. iou = 0.0363    giou = 0.0363
95. iou = 0.0309    giou = 0.0309
96. iou = 0.0256    giou = 0.0256
97. iou = 0.0204    giou = 0.0204
98. iou = 0.0152    giou = 0.0152
99. iou = 0.0101    giou = 0.0101
100. iou = 0.0050    giou = 0.0050
101. iou = 0.0000    giou = 0.0000
102. iou = 0.0000    giou = -0.0050
103. iou = 0.0000    giou = -0.0099
104. iou = 0.0000    giou = -0.0148
105. iou = 0.0000    giou = -0.0196
106. iou = 0.0000    giou = -0.0244
107. iou = 0.0000    giou = -0.0291
108. iou = 0.0000    giou = -0.0338
109. iou = 0.0000    giou = -0.0385
110. iou = 0.0000    giou = -0.0431
111. iou = 0.0000    giou = -0.0476
112. iou = 0.0000    giou = -0.0521
113. iou = 0.0000    giou = -0.0566
114. iou = 0.0000    giou = -0.0610
115. iou = 0.0000    giou = -0.0654
116. iou = 0.0000    giou = -0.0698
117. iou = 0.0000    giou = -0.0741
118. iou = 0.0000    giou = -0.0783
119. iou = 0.0000    giou = -0.0826
120. iou = 0.0000    giou = -0.0868
121. iou = 0.0000    giou = -0.0909
122. iou = 0.0000    giou = -0.0950
123. iou = 0.0000    giou = -0.0991
124. iou = 0.0000    giou = -0.1031
125. iou = 0.0000    giou = -0.1071
126. iou = 0.0000    giou = -0.1111
127. iou = 0.0000    giou = -0.1150
128. iou = 0.0000    giou = -0.1189
129. iou = 0.0000    giou = -0.1228
130. iou = 0.0000    giou = -0.1266
131. iou = 0.0000    giou = -0.1304
132. iou = 0.0000    giou = -0.1342
133. iou = 0.0000    giou = -0.1379
134. iou = 0.0000    giou = -0.1416
135. iou = 0.0000    giou = -0.1453
136. iou = 0.0000    giou = -0.1489
137. iou = 0.0000    giou = -0.1525
138. iou = 0.0000    giou = -0.1561
139. iou = 0.0000    giou = -0.1597
140. iou = 0.0000    giou = -0.1632
141. iou = 0.0000    giou = -0.1667
142. iou = 0.0000    giou = -0.1701
143. iou = 0.0000    giou = -0.1736
144. iou = 0.0000    giou = -0.1770
145. iou = 0.0000    giou = -0.1803
146. iou = 0.0000    giou = -0.1837
147. iou = 0.0000    giou = -0.1870
148. iou = 0.0000    giou = -0.1903
149. iou = 0.0000    giou = -0.1935
150. iou = 0.0000    giou = -0.1968
151. iou = 0.0000    giou = -0.2000
152. iou = 0.0000    giou = -0.2032
153. iou = 0.0000    giou = -0.2063
154. iou = 0.0000    giou = -0.2095
155. iou = 0.0000    giou = -0.2126
156. iou = 0.0000    giou = -0.2157
157. iou = 0.0000    giou = -0.2188
158. iou = 0.0000    giou = -0.2218
159. iou = 0.0000    giou = -0.2248
160. iou = 0.0000    giou = -0.2278
161. iou = 0.0000    giou = -0.2308
162. iou = 0.0000    giou = -0.2337
163. iou = 0.0000    giou = -0.2366
164. iou = 0.0000    giou = -0.2395
165. iou = 0.0000    giou = -0.2424
166. iou = 0.0000    giou = -0.2453
167. iou = 0.0000    giou = -0.2481
168. iou = 0.0000    giou = -0.2509
169. iou = 0.0000    giou = -0.2537
170. iou = 0.0000    giou = -0.2565
171. iou = 0.0000    giou = -0.2593
172. iou = 0.0000    giou = -0.2620
173. iou = 0.0000    giou = -0.2647
174. iou = 0.0000    giou = -0.2674
175. iou = 0.0000    giou = -0.2701
176. iou = 0.0000    giou = -0.2727
177. iou = 0.0000    giou = -0.2754
178. iou = 0.0000    giou = -0.2780
179. iou = 0.0000    giou = -0.2806
180. iou = 0.0000    giou = -0.2832
181. iou = 0.0000    giou = -0.2857
182. iou = 0.0000    giou = -0.2883
183. iou = 0.0000    giou = -0.2908
184. iou = 0.0000    giou = -0.2933
185. iou = 0.0000    giou = -0.2958
186. iou = 0.0000    giou = -0.2982
187. iou = 0.0000    giou = -0.3007
188. iou = 0.0000    giou = -0.3031
189. iou = 0.0000    giou = -0.3056
190. iou = 0.0000    giou = -0.3080
191. iou = 0.0000    giou = -0.3103
192. iou = 0.0000    giou = -0.3127
193. iou = 0.0000    giou = -0.3151
194. iou = 0.0000    giou = -0.3174
195. iou = 0.0000    giou = -0.3197
196. iou = 0.0000    giou = -0.3220
197. iou = 0.0000    giou = -0.3243
198. iou = 0.0000    giou = -0.3266
199. iou = 0.0000    giou = -0.3289
200. iou = 0.0000    giou = -0.3311
201. iou = 0.0000    giou = -0.3333
202. iou = 0.0000    giou = -0.3355
203. iou = 0.0000    giou = -0.3377
204. iou = 0.0000    giou = -0.3399
205. iou = 0.0000    giou = -0.3421
206. iou = 0.0000    giou = -0.3443
207. iou = 0.0000    giou = -0.3464
208. iou = 0.0000    giou = -0.3485
209. iou = 0.0000    giou = -0.3506
210. iou = 0.0000    giou = -0.3528
211. iou = 0.0000    giou = -0.3548
212. iou = 0.0000    giou = -0.3569
213. iou = 0.0000    giou = -0.3590
214. iou = 0.0000    giou = -0.3610
215. iou = 0.0000    giou = -0.3631
216. iou = 0.0000    giou = -0.3651
217. iou = 0.0000    giou = -0.3671
218. iou = 0.0000    giou = -0.3691
219. iou = 0.0000    giou = -0.3711
220. iou = 0.0000    giou = -0.3730
221. iou = 0.0000    giou = -0.3750
222. iou = 0.0000    giou = -0.3769
223. iou = 0.0000    giou = -0.3789
224. iou = 0.0000    giou = -0.3808
225. iou = 0.0000    giou = -0.3827
226. iou = 0.0000    giou = -0.3846
227. iou = 0.0000    giou = -0.3865
228. iou = 0.0000    giou = -0.3884
229. iou = 0.0000    giou = -0.3902
230. iou = 0.0000    giou = -0.3921
231. iou = 0.0000    giou = -0.3939
232. iou = 0.0000    giou = -0.3958
233. iou = 0.0000    giou = -0.3976
234. iou = 0.0000    giou = -0.3994
235. iou = 0.0000    giou = -0.4012
236. iou = 0.0000    giou = -0.4030
237. iou = 0.0000    giou = -0.4048
238. iou = 0.0000    giou = -0.4065
239. iou = 0.0000    giou = -0.4083
240. iou = 0.0000    giou = -0.4100
241. iou = 0.0000    giou = -0.4118
242. iou = 0.0000    giou = -0.4135
243. iou = 0.0000    giou = -0.4152
244. iou = 0.0000    giou = -0.4169
245. iou = 0.0000    giou = -0.4186
246. iou = 0.0000    giou = -0.4203
247. iou = 0.0000    giou = -0.4220
248. iou = 0.0000    giou = -0.4236
249. iou = 0.0000    giou = -0.4253
250. iou = 0.0000    giou = -0.4269

当矩形2大小为50x100时：

1. iou = 0.5000    giou = 0.5000
2. iou = 0.5000    giou = 0.5000
3. iou = 0.5000    giou = 0.5000
4. iou = 0.5000    giou = 0.5000
5. iou = 0.5000    giou = 0.5000
6. iou = 0.5000    giou = 0.5000
7. iou = 0.5000    giou = 0.5000
8. iou = 0.5000    giou = 0.5000
9. iou = 0.5000    giou = 0.5000
10. iou = 0.5000    giou = 0.5000
11. iou = 0.5000    giou = 0.5000
12. iou = 0.5000    giou = 0.5000
13. iou = 0.5000    giou = 0.5000
14. iou = 0.5000    giou = 0.5000
15. iou = 0.5000    giou = 0.5000
16. iou = 0.5000    giou = 0.5000
17. iou = 0.5000    giou = 0.5000
18. iou = 0.5000    giou = 0.5000
19. iou = 0.5000    giou = 0.5000
20. iou = 0.5000    giou = 0.5000
21. iou = 0.5000    giou = 0.5000
22. iou = 0.5000    giou = 0.5000
23. iou = 0.5000    giou = 0.5000
24. iou = 0.5000    giou = 0.5000
25. iou = 0.5000    giou = 0.5000
26. iou = 0.5000    giou = 0.5000
27. iou = 0.5000    giou = 0.5000
28. iou = 0.5000    giou = 0.5000
29. iou = 0.5000    giou = 0.5000
30. iou = 0.5000    giou = 0.5000
31. iou = 0.5000    giou = 0.5000
32. iou = 0.5000    giou = 0.5000
33. iou = 0.5000    giou = 0.5000
34. iou = 0.5000    giou = 0.5000
35. iou = 0.5000    giou = 0.5000
36. iou = 0.5000    giou = 0.5000
37. iou = 0.5000    giou = 0.5000
38. iou = 0.5000    giou = 0.5000
39. iou = 0.5000    giou = 0.5000
40. iou = 0.5000    giou = 0.5000
41. iou = 0.5000    giou = 0.5000
42. iou = 0.5000    giou = 0.5000
43. iou = 0.5000    giou = 0.5000
44. iou = 0.5000    giou = 0.5000
45. iou = 0.5000    giou = 0.5000
46. iou = 0.5000    giou = 0.5000
47. iou = 0.5000    giou = 0.5000
48. iou = 0.5000    giou = 0.5000
49. iou = 0.5000    giou = 0.5000
50. iou = 0.5000    giou = 0.5000
51. iou = 0.5000    giou = 0.5000
52. iou = 0.4851    giou = 0.4851
53. iou = 0.4706    giou = 0.4706
54. iou = 0.4563    giou = 0.4563
55. iou = 0.4423    giou = 0.4423
56. iou = 0.4286    giou = 0.4286
57. iou = 0.4151    giou = 0.4151
58. iou = 0.4019    giou = 0.4019
59. iou = 0.3889    giou = 0.3889
60. iou = 0.3761    giou = 0.3761
61. iou = 0.3636    giou = 0.3636
62. iou = 0.3514    giou = 0.3514
63. iou = 0.3393    giou = 0.3393
64. iou = 0.3274    giou = 0.3274
65. iou = 0.3158    giou = 0.3158
66. iou = 0.3043    giou = 0.3043
67. iou = 0.2931    giou = 0.2931
68. iou = 0.2821    giou = 0.2821
69. iou = 0.2712    giou = 0.2712
70. iou = 0.2605    giou = 0.2605
71. iou = 0.2500    giou = 0.2500
72. iou = 0.2397    giou = 0.2397
73. iou = 0.2295    giou = 0.2295
74. iou = 0.2195    giou = 0.2195
75. iou = 0.2097    giou = 0.2097
76. iou = 0.2000    giou = 0.2000
77. iou = 0.1905    giou = 0.1905
78. iou = 0.1811    giou = 0.1811
79. iou = 0.1719    giou = 0.1719
80. iou = 0.1628    giou = 0.1628
81. iou = 0.1538    giou = 0.1538
82. iou = 0.1450    giou = 0.1450
83. iou = 0.1364    giou = 0.1364
84. iou = 0.1278    giou = 0.1278
85. iou = 0.1194    giou = 0.1194
86. iou = 0.1111    giou = 0.1111
87. iou = 0.1029    giou = 0.1029
88. iou = 0.0949    giou = 0.0949
89. iou = 0.0870    giou = 0.0870
90. iou = 0.0791    giou = 0.0791
91. iou = 0.0714    giou = 0.0714
92. iou = 0.0638    giou = 0.0638
93. iou = 0.0563    giou = 0.0563
94. iou = 0.0490    giou = 0.0490
95. iou = 0.0417    giou = 0.0417
96. iou = 0.0345    giou = 0.0345
97. iou = 0.0274    giou = 0.0274
98. iou = 0.0204    giou = 0.0204
99. iou = 0.0135    giou = 0.0135
100. iou = 0.0067    giou = 0.0067
101. iou = 0.0000    giou = 0.0000
102. iou = 0.0000    giou = -0.0066
103. iou = 0.0000    giou = -0.0132
104. iou = 0.0000    giou = -0.0196
105. iou = 0.0000    giou = -0.0260
106. iou = 0.0000    giou = -0.0323
107. iou = 0.0000    giou = -0.0385
108. iou = 0.0000    giou = -0.0446
109. iou = 0.0000    giou = -0.0506
110. iou = 0.0000    giou = -0.0566
111. iou = 0.0000    giou = -0.0625
112. iou = 0.0000    giou = -0.0683
113. iou = 0.0000    giou = -0.0741
114. iou = 0.0000    giou = -0.0798
115. iou = 0.0000    giou = -0.0854
116. iou = 0.0000    giou = -0.0909
117. iou = 0.0000    giou = -0.0964
118. iou = 0.0000    giou = -0.1018
119. iou = 0.0000    giou = -0.1071
120. iou = 0.0000    giou = -0.1124
121. iou = 0.0000    giou = -0.1176
122. iou = 0.0000    giou = -0.1228
123. iou = 0.0000    giou = -0.1279
124. iou = 0.0000    giou = -0.1329
125. iou = 0.0000    giou = -0.1379
126. iou = 0.0000    giou = -0.1429
127. iou = 0.0000    giou = -0.1477
128. iou = 0.0000    giou = -0.1525
129. iou = 0.0000    giou = -0.1573
130. iou = 0.0000    giou = -0.1620
131. iou = 0.0000    giou = -0.1667
132. iou = 0.0000    giou = -0.1713
133. iou = 0.0000    giou = -0.1758
134. iou = 0.0000    giou = -0.1803
135. iou = 0.0000    giou = -0.1848
136. iou = 0.0000    giou = -0.1892
137. iou = 0.0000    giou = -0.1935
138. iou = 0.0000    giou = -0.1979
139. iou = 0.0000    giou = -0.2021
140. iou = 0.0000    giou = -0.2063
141. iou = 0.0000    giou = -0.2105
142. iou = 0.0000    giou = -0.2147
143. iou = 0.0000    giou = -0.2188
144. iou = 0.0000    giou = -0.2228
145. iou = 0.0000    giou = -0.2268
146. iou = 0.0000    giou = -0.2308
147. iou = 0.0000    giou = -0.2347
148. iou = 0.0000    giou = -0.2386
149. iou = 0.0000    giou = -0.2424
150. iou = 0.0000    giou = -0.2462
151. iou = 0.0000    giou = -0.2500
152. iou = 0.0000    giou = -0.2537
153. iou = 0.0000    giou = -0.2574
154. iou = 0.0000    giou = -0.2611
155. iou = 0.0000    giou = -0.2647
156. iou = 0.0000    giou = -0.2683
157. iou = 0.0000    giou = -0.2718
158. iou = 0.0000    giou = -0.2754
159. iou = 0.0000    giou = -0.2788
160. iou = 0.0000    giou = -0.2823
161. iou = 0.0000    giou = -0.2857
162. iou = 0.0000    giou = -0.2891
163. iou = 0.0000    giou = -0.2925
164. iou = 0.0000    giou = -0.2958
165. iou = 0.0000    giou = -0.2991
166. iou = 0.0000    giou = -0.3023
167. iou = 0.0000    giou = -0.3056
168. iou = 0.0000    giou = -0.3088
169. iou = 0.0000    giou = -0.3119
170. iou = 0.0000    giou = -0.3151
171. iou = 0.0000    giou = -0.3182
172. iou = 0.0000    giou = -0.3213
173. iou = 0.0000    giou = -0.3243
174. iou = 0.0000    giou = -0.3274
175. iou = 0.0000    giou = -0.3304
176. iou = 0.0000    giou = -0.3333
177. iou = 0.0000    giou = -0.3363
178. iou = 0.0000    giou = -0.3392
179. iou = 0.0000    giou = -0.3421
180. iou = 0.0000    giou = -0.3450
181. iou = 0.0000    giou = -0.3478
182. iou = 0.0000    giou = -0.3506
183. iou = 0.0000    giou = -0.3534
184. iou = 0.0000    giou = -0.3562
185. iou = 0.0000    giou = -0.3590
186. iou = 0.0000    giou = -0.3617
187. iou = 0.0000    giou = -0.3644
188. iou = 0.0000    giou = -0.3671
189. iou = 0.0000    giou = -0.3697
190. iou = 0.0000    giou = -0.3724
191. iou = 0.0000    giou = -0.3750
192. iou = 0.0000    giou = -0.3776
193. iou = 0.0000    giou = -0.3802
194. iou = 0.0000    giou = -0.3827
195. iou = 0.0000    giou = -0.3852
196. iou = 0.0000    giou = -0.3878
197. iou = 0.0000    giou = -0.3902
198. iou = 0.0000    giou = -0.3927
199. iou = 0.0000    giou = -0.3952
200. iou = 0.0000    giou = -0.3976
201. iou = 0.0000    giou = -0.4000
202. iou = 0.0000    giou = -0.4024
203. iou = 0.0000    giou = -0.4048
204. iou = 0.0000    giou = -0.4071
205. iou = 0.0000    giou = -0.4094
206. iou = 0.0000    giou = -0.4118
207. iou = 0.0000    giou = -0.4141
208. iou = 0.0000    giou = -0.4163
209. iou = 0.0000    giou = -0.4186
210. iou = 0.0000    giou = -0.4208
211. iou = 0.0000    giou = -0.4231
212. iou = 0.0000    giou = -0.4253
213. iou = 0.0000    giou = -0.4275
214. iou = 0.0000    giou = -0.4297
215. iou = 0.0000    giou = -0.4318
216. iou = 0.0000    giou = -0.4340
217. iou = 0.0000    giou = -0.4361
218. iou = 0.0000    giou = -0.4382
219. iou = 0.0000    giou = -0.4403
220. iou = 0.0000    giou = -0.4424
221. iou = 0.0000    giou = -0.4444
222. iou = 0.0000    giou = -0.4465
223. iou = 0.0000    giou = -0.4485
224. iou = 0.0000    giou = -0.4505
225. iou = 0.0000    giou = -0.4526
226. iou = 0.0000    giou = -0.4545
227. iou = 0.0000    giou = -0.4565
228. iou = 0.0000    giou = -0.4585
229. iou = 0.0000    giou = -0.4604
230. iou = 0.0000    giou = -0.4624
231. iou = 0.0000    giou = -0.4643
232. iou = 0.0000    giou = -0.4662
233. iou = 0.0000    giou = -0.4681
234. iou = 0.0000    giou = -0.4700
235. iou = 0.0000    giou = -0.4718
236. iou = 0.0000    giou = -0.4737
237. iou = 0.0000    giou = -0.4755
238. iou = 0.0000    giou = -0.4774
239. iou = 0.0000    giou = -0.4792
240. iou = 0.0000    giou = -0.4810
241. iou = 0.0000    giou = -0.4828
242. iou = 0.0000    giou = -0.4845
243. iou = 0.0000    giou = -0.4863
244. iou = 0.0000    giou = -0.4881
245. iou = 0.0000    giou = -0.4898
246. iou = 0.0000    giou = -0.4915
247. iou = 0.0000    giou = -0.4932
248. iou = 0.0000    giou = -0.4949
249. iou = 0.0000    giou = -0.4966
250. iou = 0.0000    giou = -0.4983

当矩形2大小为200x100时：

1. iou = 0.5000    giou = 0.5000
2. iou = 0.4925    giou = 0.4925
3. iou = 0.4851    giou = 0.4851
4. iou = 0.4778    giou = 0.4778
5. iou = 0.4706    giou = 0.4706
6. iou = 0.4634    giou = 0.4634
7. iou = 0.4563    giou = 0.4563
8. iou = 0.4493    giou = 0.4493
9. iou = 0.4423    giou = 0.4423
10. iou = 0.4354    giou = 0.4354
11. iou = 0.4286    giou = 0.4286
12. iou = 0.4218    giou = 0.4218
13. iou = 0.4151    giou = 0.4151
14. iou = 0.4085    giou = 0.4085
15. iou = 0.4019    giou = 0.4019
16. iou = 0.3953    giou = 0.3953
17. iou = 0.3889    giou = 0.3889
18. iou = 0.3825    giou = 0.3825
19. iou = 0.3761    giou = 0.3761
20. iou = 0.3699    giou = 0.3699
21. iou = 0.3636    giou = 0.3636
22. iou = 0.3575    giou = 0.3575
23. iou = 0.3514    giou = 0.3514
24. iou = 0.3453    giou = 0.3453
25. iou = 0.3393    giou = 0.3393
26. iou = 0.3333    giou = 0.3333
27. iou = 0.3274    giou = 0.3274
28. iou = 0.3216    giou = 0.3216
29. iou = 0.3158    giou = 0.3158
30. iou = 0.3100    giou = 0.3100
31. iou = 0.3043    giou = 0.3043
32. iou = 0.2987    giou = 0.2987
33. iou = 0.2931    giou = 0.2931
34. iou = 0.2876    giou = 0.2876
35. iou = 0.2821    giou = 0.2821
36. iou = 0.2766    giou = 0.2766
37. iou = 0.2712    giou = 0.2712
38. iou = 0.2658    giou = 0.2658
39. iou = 0.2605    giou = 0.2605
40. iou = 0.2552    giou = 0.2552
41. iou = 0.2500    giou = 0.2500
42. iou = 0.2448    giou = 0.2448
43. iou = 0.2397    giou = 0.2397
44. iou = 0.2346    giou = 0.2346
45. iou = 0.2295    giou = 0.2295
46. iou = 0.2245    giou = 0.2245
47. iou = 0.2195    giou = 0.2195
48. iou = 0.2146    giou = 0.2146
49. iou = 0.2097    giou = 0.2097
50. iou = 0.2048    giou = 0.2048
51. iou = 0.2000    giou = 0.2000
52. iou = 0.1952    giou = 0.1952
53. iou = 0.1905    giou = 0.1905
54. iou = 0.1858    giou = 0.1858
55. iou = 0.1811    giou = 0.1811
56. iou = 0.1765    giou = 0.1765
57. iou = 0.1719    giou = 0.1719
58. iou = 0.1673    giou = 0.1673
59. iou = 0.1628    giou = 0.1628
60. iou = 0.1583    giou = 0.1583
61. iou = 0.1538    giou = 0.1538
62. iou = 0.1494    giou = 0.1494
63. iou = 0.1450    giou = 0.1450
64. iou = 0.1407    giou = 0.1407
65. iou = 0.1364    giou = 0.1364
66. iou = 0.1321    giou = 0.1321
67. iou = 0.1278    giou = 0.1278
68. iou = 0.1236    giou = 0.1236
69. iou = 0.1194    giou = 0.1194
70. iou = 0.1152    giou = 0.1152
71. iou = 0.1111    giou = 0.1111
72. iou = 0.1070    giou = 0.1070
73. iou = 0.1029    giou = 0.1029
74. iou = 0.0989    giou = 0.0989
75. iou = 0.0949    giou = 0.0949
76. iou = 0.0909    giou = 0.0909
77. iou = 0.0870    giou = 0.0870
78. iou = 0.0830    giou = 0.0830
79. iou = 0.0791    giou = 0.0791
80. iou = 0.0753    giou = 0.0753
81. iou = 0.0714    giou = 0.0714
82. iou = 0.0676    giou = 0.0676
83. iou = 0.0638    giou = 0.0638
84. iou = 0.0601    giou = 0.0601
85. iou = 0.0563    giou = 0.0563
86. iou = 0.0526    giou = 0.0526
87. iou = 0.0490    giou = 0.0490
88. iou = 0.0453    giou = 0.0453
89. iou = 0.0417    giou = 0.0417
90. iou = 0.0381    giou = 0.0381
91. iou = 0.0345    giou = 0.0345
92. iou = 0.0309    giou = 0.0309
93. iou = 0.0274    giou = 0.0274
94. iou = 0.0239    giou = 0.0239
95. iou = 0.0204    giou = 0.0204
96. iou = 0.0169    giou = 0.0169
97. iou = 0.0135    giou = 0.0135
98. iou = 0.0101    giou = 0.0101
99. iou = 0.0067    giou = 0.0067
100. iou = 0.0033    giou = 0.0033
101. iou = 0.0000    giou = 0.0000
102. iou = 0.0000    giou = -0.0033
103. iou = 0.0000    giou = -0.0066
104. iou = 0.0000    giou = -0.0099
105. iou = 0.0000    giou = -0.0132
106. iou = 0.0000    giou = -0.0164
107. iou = 0.0000    giou = -0.0196
108. iou = 0.0000    giou = -0.0228
109. iou = 0.0000    giou = -0.0260
110. iou = 0.0000    giou = -0.0291
111. iou = 0.0000    giou = -0.0323
112. iou = 0.0000    giou = -0.0354
113. iou = 0.0000    giou = -0.0385
114. iou = 0.0000    giou = -0.0415
115. iou = 0.0000    giou = -0.0446
116. iou = 0.0000    giou = -0.0476
117. iou = 0.0000    giou = -0.0506
118. iou = 0.0000    giou = -0.0536
119. iou = 0.0000    giou = -0.0566
120. iou = 0.0000    giou = -0.0596
121. iou = 0.0000    giou = -0.0625
122. iou = 0.0000    giou = -0.0654
123. iou = 0.0000    giou = -0.0683
124. iou = 0.0000    giou = -0.0712
125. iou = 0.0000    giou = -0.0741
126. iou = 0.0000    giou = -0.0769
127. iou = 0.0000    giou = -0.0798
128. iou = 0.0000    giou = -0.0826
129. iou = 0.0000    giou = -0.0854
130. iou = 0.0000    giou = -0.0881
131. iou = 0.0000    giou = -0.0909
132. iou = 0.0000    giou = -0.0937
133. iou = 0.0000    giou = -0.0964
134. iou = 0.0000    giou = -0.0991
135. iou = 0.0000    giou = -0.1018
136. iou = 0.0000    giou = -0.1045
137. iou = 0.0000    giou = -0.1071
138. iou = 0.0000    giou = -0.1098
139. iou = 0.0000    giou = -0.1124
140. iou = 0.0000    giou = -0.1150
141. iou = 0.0000    giou = -0.1176
142. iou = 0.0000    giou = -0.1202
143. iou = 0.0000    giou = -0.1228
144. iou = 0.0000    giou = -0.1254
145. iou = 0.0000    giou = -0.1279
146. iou = 0.0000    giou = -0.1304
147. iou = 0.0000    giou = -0.1329
148. iou = 0.0000    giou = -0.1354
149. iou = 0.0000    giou = -0.1379
150. iou = 0.0000    giou = -0.1404
151. iou = 0.0000    giou = -0.1429
152. iou = 0.0000    giou = -0.1453
153. iou = 0.0000    giou = -0.1477
154. iou = 0.0000    giou = -0.1501
155. iou = 0.0000    giou = -0.1525
156. iou = 0.0000    giou = -0.1549
157. iou = 0.0000    giou = -0.1573
158. iou = 0.0000    giou = -0.1597
159. iou = 0.0000    giou = -0.1620
160. iou = 0.0000    giou = -0.1643
161. iou = 0.0000    giou = -0.1667
162. iou = 0.0000    giou = -0.1690
163. iou = 0.0000    giou = -0.1713
164. iou = 0.0000    giou = -0.1736
165. iou = 0.0000    giou = -0.1758
166. iou = 0.0000    giou = -0.1781
167. iou = 0.0000    giou = -0.1803
168. iou = 0.0000    giou = -0.1826
169. iou = 0.0000    giou = -0.1848
170. iou = 0.0000    giou = -0.1870
171. iou = 0.0000    giou = -0.1892
172. iou = 0.0000    giou = -0.1914
173. iou = 0.0000    giou = -0.1935
174. iou = 0.0000    giou = -0.1957
175. iou = 0.0000    giou = -0.1979
176. iou = 0.0000    giou = -0.2000
177. iou = 0.0000    giou = -0.2021
178. iou = 0.0000    giou = -0.2042
179. iou = 0.0000    giou = -0.2063
180. iou = 0.0000    giou = -0.2084
181. iou = 0.0000    giou = -0.2105
182. iou = 0.0000    giou = -0.2126
183. iou = 0.0000    giou = -0.2147
184. iou = 0.0000    giou = -0.2167
185. iou = 0.0000    giou = -0.2188
186. iou = 0.0000    giou = -0.2208
187. iou = 0.0000    giou = -0.2228
188. iou = 0.0000    giou = -0.2248
189. iou = 0.0000    giou = -0.2268
190. iou = 0.0000    giou = -0.2288
191. iou = 0.0000    giou = -0.2308
192. iou = 0.0000    giou = -0.2327
193. iou = 0.0000    giou = -0.2347
194. iou = 0.0000    giou = -0.2366
195. iou = 0.0000    giou = -0.2386
196. iou = 0.0000    giou = -0.2405
197. iou = 0.0000    giou = -0.2424
198. iou = 0.0000    giou = -0.2443
199. iou = 0.0000    giou = -0.2462
200. iou = 0.0000    giou = -0.2481
201. iou = 0.0000    giou = -0.2500
202. iou = 0.0000    giou = -0.2519
203. iou = 0.0000    giou = -0.2537
204. iou = 0.0000    giou = -0.2556
205. iou = 0.0000    giou = -0.2574
206. iou = 0.0000    giou = -0.2593
207. iou = 0.0000    giou = -0.2611
208. iou = 0.0000    giou = -0.2629
209. iou = 0.0000    giou = -0.2647
210. iou = 0.0000    giou = -0.2665
211. iou = 0.0000    giou = -0.2683
212. iou = 0.0000    giou = -0.2701
213. iou = 0.0000    giou = -0.2718
214. iou = 0.0000    giou = -0.2736
215. iou = 0.0000    giou = -0.2754
216. iou = 0.0000    giou = -0.2771
217. iou = 0.0000    giou = -0.2788
218. iou = 0.0000    giou = -0.2806
219. iou = 0.0000    giou = -0.2823
220. iou = 0.0000    giou = -0.2840
221. iou = 0.0000    giou = -0.2857
222. iou = 0.0000    giou = -0.2874
223. iou = 0.0000    giou = -0.2891
224. iou = 0.0000    giou = -0.2908
225. iou = 0.0000    giou = -0.2925
226. iou = 0.0000    giou = -0.2941
227. iou = 0.0000    giou = -0.2958
228. iou = 0.0000    giou = -0.2974
229. iou = 0.0000    giou = -0.2991
230. iou = 0.0000    giou = -0.3007
231. iou = 0.0000    giou = -0.3023
232. iou = 0.0000    giou = -0.3039
233. iou = 0.0000    giou = -0.3056
234. iou = 0.0000    giou = -0.3072
235. iou = 0.0000    giou = -0.3088
236. iou = 0.0000    giou = -0.3103
237. iou = 0.0000    giou = -0.3119
238. iou = 0.0000    giou = -0.3135
239. iou = 0.0000    giou = -0.3151
240. iou = 0.0000    giou = -0.3166
241. iou = 0.0000    giou = -0.3182
242. iou = 0.0000    giou = -0.3197
243. iou = 0.0000    giou = -0.3213
244. iou = 0.0000    giou = -0.3228
245. iou = 0.0000    giou = -0.3243
246. iou = 0.0000    giou = -0.3258
247. iou = 0.0000    giou = -0.3274
248. iou = 0.0000    giou = -0.3289
249. iou = 0.0000    giou = -0.3304
250. iou = 0.0000    giou = -0.3318

当矩形2大小为100x200时：

1. iou = 0.5000    giou = 0.5000
2. iou = 0.4901    giou = 0.4851
3. iou = 0.4804    giou = 0.4706
4. iou = 0.4709    giou = 0.4563
5. iou = 0.4615    giou = 0.4423
6. iou = 0.4524    giou = 0.4286
7. iou = 0.4434    giou = 0.4151
8. iou = 0.4346    giou = 0.4019
9. iou = 0.4259    giou = 0.3889
10. iou = 0.4174    giou = 0.3761
11. iou = 0.4091    giou = 0.3636
12. iou = 0.4009    giou = 0.3514
13. iou = 0.3929    giou = 0.3393
14. iou = 0.3850    giou = 0.3274
15. iou = 0.3772    giou = 0.3158
16. iou = 0.3696    giou = 0.3043
17. iou = 0.3621    giou = 0.2931
18. iou = 0.3547    giou = 0.2821
19. iou = 0.3475    giou = 0.2712
20. iou = 0.3403    giou = 0.2605
21. iou = 0.3333    giou = 0.2500
22. iou = 0.3264    giou = 0.2397
23. iou = 0.3197    giou = 0.2295
24. iou = 0.3130    giou = 0.2195
25. iou = 0.3065    giou = 0.2097
26. iou = 0.3000    giou = 0.2000
27. iou = 0.2937    giou = 0.1905
28. iou = 0.2874    giou = 0.1811
29. iou = 0.2812    giou = 0.1719
30. iou = 0.2752    giou = 0.1628
31. iou = 0.2692    giou = 0.1538
32. iou = 0.2634    giou = 0.1450
33. iou = 0.2576    giou = 0.1364
34. iou = 0.2519    giou = 0.1278
35. iou = 0.2463    giou = 0.1194
36. iou = 0.2407    giou = 0.1111
37. iou = 0.2353    giou = 0.1029
38. iou = 0.2299    giou = 0.0949
39. iou = 0.2246    giou = 0.0870
40. iou = 0.2194    giou = 0.0791
41. iou = 0.2143    giou = 0.0714
42. iou = 0.2092    giou = 0.0638
43. iou = 0.2042    giou = 0.0563
44. iou = 0.1993    giou = 0.0490
45. iou = 0.1944    giou = 0.0417
46. iou = 0.1897    giou = 0.0345
47. iou = 0.1849    giou = 0.0274
48. iou = 0.1803    giou = 0.0204
49. iou = 0.1757    giou = 0.0135
50. iou = 0.1711    giou = 0.0067
51. iou = 0.1667    giou = 0.0000
52. iou = 0.1623    giou = -0.0066
53. iou = 0.1579    giou = -0.0132
54. iou = 0.1536    giou = -0.0196
55. iou = 0.1494    giou = -0.0260
56. iou = 0.1452    giou = -0.0323
57. iou = 0.1410    giou = -0.0385
58. iou = 0.1369    giou = -0.0446
59. iou = 0.1329    giou = -0.0506
60. iou = 0.1289    giou = -0.0566
61. iou = 0.1250    giou = -0.0625
62. iou = 0.1211    giou = -0.0683
63. iou = 0.1173    giou = -0.0741
64. iou = 0.1135    giou = -0.0798
65. iou = 0.1098    giou = -0.0854
66. iou = 0.1061    giou = -0.0909
67. iou = 0.1024    giou = -0.0964
68. iou = 0.0988    giou = -0.1018
69. iou = 0.0952    giou = -0.1071
70. iou = 0.0917    giou = -0.1124
71. iou = 0.0882    giou = -0.1176
72. iou = 0.0848    giou = -0.1228
73. iou = 0.0814    giou = -0.1279
74. iou = 0.0780    giou = -0.1329
75. iou = 0.0747    giou = -0.1379
76. iou = 0.0714    giou = -0.1429
77. iou = 0.0682    giou = -0.1477
78. iou = 0.0650    giou = -0.1525
79. iou = 0.0618    giou = -0.1573
80. iou = 0.0587    giou = -0.1620
81. iou = 0.0556    giou = -0.1667
82. iou = 0.0525    giou = -0.1713
83. iou = 0.0495    giou = -0.1758
84. iou = 0.0464    giou = -0.1803
85. iou = 0.0435    giou = -0.1848
86. iou = 0.0405    giou = -0.1892
87. iou = 0.0376    giou = -0.1935
88. iou = 0.0348    giou = -0.1979
89. iou = 0.0319    giou = -0.2021
90. iou = 0.0291    giou = -0.2063
91. iou = 0.0263    giou = -0.2105
92. iou = 0.0236    giou = -0.2147
93. iou = 0.0208    giou = -0.2188
94. iou = 0.0181    giou = -0.2228
95. iou = 0.0155    giou = -0.2268
96. iou = 0.0128    giou = -0.2308
97. iou = 0.0102    giou = -0.2347
98. iou = 0.0076    giou = -0.2386
99. iou = 0.0051    giou = -0.2424
100. iou = 0.0025    giou = -0.2462
101. iou = 0.0000    giou = -0.2500
102. iou = 0.0000    giou = -0.2537
103. iou = 0.0000    giou = -0.2574
104. iou = 0.0000    giou = -0.2611
105. iou = 0.0000    giou = -0.2647
106. iou = 0.0000    giou = -0.2683
107. iou = 0.0000    giou = -0.2718
108. iou = 0.0000    giou = -0.2754
109. iou = 0.0000    giou = -0.2788
110. iou = 0.0000    giou = -0.2823
111. iou = 0.0000    giou = -0.2857
112. iou = 0.0000    giou = -0.2891
113. iou = 0.0000    giou = -0.2925
114. iou = 0.0000    giou = -0.2958
115. iou = 0.0000    giou = -0.2991
116. iou = 0.0000    giou = -0.3023
117. iou = 0.0000    giou = -0.3056
118. iou = 0.0000    giou = -0.3088
119. iou = 0.0000    giou = -0.3119
120. iou = 0.0000    giou = -0.3151
121. iou = 0.0000    giou = -0.3182
122. iou = 0.0000    giou = -0.3213
123. iou = 0.0000    giou = -0.3243
124. iou = 0.0000    giou = -0.3274
125. iou = 0.0000    giou = -0.3304
126. iou = 0.0000    giou = -0.3333
127. iou = 0.0000    giou = -0.3363
128. iou = 0.0000    giou = -0.3392
129. iou = 0.0000    giou = -0.3421
130. iou = 0.0000    giou = -0.3450
131. iou = 0.0000    giou = -0.3478
132. iou = 0.0000    giou = -0.3506
133. iou = 0.0000    giou = -0.3534
134. iou = 0.0000    giou = -0.3562
135. iou = 0.0000    giou = -0.3590
136. iou = 0.0000    giou = -0.3617
137. iou = 0.0000    giou = -0.3644
138. iou = 0.0000    giou = -0.3671
139. iou = 0.0000    giou = -0.3697
140. iou = 0.0000    giou = -0.3724
141. iou = 0.0000    giou = -0.3750
142. iou = 0.0000    giou = -0.3776
143. iou = 0.0000    giou = -0.3802
144. iou = 0.0000    giou = -0.3827
145. iou = 0.0000    giou = -0.3852
146. iou = 0.0000    giou = -0.3878
147. iou = 0.0000    giou = -0.3902
148. iou = 0.0000    giou = -0.3927
149. iou = 0.0000    giou = -0.3952
150. iou = 0.0000    giou = -0.3976
151. iou = 0.0000    giou = -0.4000
152. iou = 0.0000    giou = -0.4024
153. iou = 0.0000    giou = -0.4048
154. iou = 0.0000    giou = -0.4071
155. iou = 0.0000    giou = -0.4094
156. iou = 0.0000    giou = -0.4118
157. iou = 0.0000    giou = -0.4141
158. iou = 0.0000    giou = -0.4163
159. iou = 0.0000    giou = -0.4186
160. iou = 0.0000    giou = -0.4208
161. iou = 0.0000    giou = -0.4231
162. iou = 0.0000    giou = -0.4253
163. iou = 0.0000    giou = -0.4275
164. iou = 0.0000    giou = -0.4297
165. iou = 0.0000    giou = -0.4318
166. iou = 0.0000    giou = -0.4340
167. iou = 0.0000    giou = -0.4361
168. iou = 0.0000    giou = -0.4382
169. iou = 0.0000    giou = -0.4403
170. iou = 0.0000    giou = -0.4424
171. iou = 0.0000    giou = -0.4444
172. iou = 0.0000    giou = -0.4465
173. iou = 0.0000    giou = -0.4485
174. iou = 0.0000    giou = -0.4505
175. iou = 0.0000    giou = -0.4526
176. iou = 0.0000    giou = -0.4545
177. iou = 0.0000    giou = -0.4565
178. iou = 0.0000    giou = -0.4585
179. iou = 0.0000    giou = -0.4604
180. iou = 0.0000    giou = -0.4624
181. iou = 0.0000    giou = -0.4643
182. iou = 0.0000    giou = -0.4662
183. iou = 0.0000    giou = -0.4681
184. iou = 0.0000    giou = -0.4700
185. iou = 0.0000    giou = -0.4718
186. iou = 0.0000    giou = -0.4737
187. iou = 0.0000    giou = -0.4755
188. iou = 0.0000    giou = -0.4774
189. iou = 0.0000    giou = -0.4792
190. iou = 0.0000    giou = -0.4810
191. iou = 0.0000    giou = -0.4828
192. iou = 0.0000    giou = -0.4845
193. iou = 0.0000    giou = -0.4863
194. iou = 0.0000    giou = -0.4881
195. iou = 0.0000    giou = -0.4898
196. iou = 0.0000    giou = -0.4915
197. iou = 0.0000    giou = -0.4932
198. iou = 0.0000    giou = -0.4949
199. iou = 0.0000    giou = -0.4966
200. iou = 0.0000    giou = -0.4983
201. iou = 0.0000    giou = -0.5000
202. iou = 0.0000    giou = -0.5017
203. iou = 0.0000    giou = -0.5033
204. iou = 0.0000    giou = -0.5050
205. iou = 0.0000    giou = -0.5066
206. iou = 0.0000    giou = -0.5082
207. iou = 0.0000    giou = -0.5098
208. iou = 0.0000    giou = -0.5114
209. iou = 0.0000    giou = -0.5130
210. iou = 0.0000    giou = -0.5146
211. iou = 0.0000    giou = -0.5161
212. iou = 0.0000    giou = -0.5177
213. iou = 0.0000    giou = -0.5192
214. iou = 0.0000    giou = -0.5208
215. iou = 0.0000    giou = -0.5223
216. iou = 0.0000    giou = -0.5238
217. iou = 0.0000    giou = -0.5253
218. iou = 0.0000    giou = -0.5268
219. iou = 0.0000    giou = -0.5283
220. iou = 0.0000    giou = -0.5298
221. iou = 0.0000    giou = -0.5312
222. iou = 0.0000    giou = -0.5327
223. iou = 0.0000    giou = -0.5342
224. iou = 0.0000    giou = -0.5356
225. iou = 0.0000    giou = -0.5370
226. iou = 0.0000    giou = -0.5385
227. iou = 0.0000    giou = -0.5399
228. iou = 0.0000    giou = -0.5413
229. iou = 0.0000    giou = -0.5427
230. iou = 0.0000    giou = -0.5441
231. iou = 0.0000    giou = -0.5455
232. iou = 0.0000    giou = -0.5468
233. iou = 0.0000    giou = -0.5482
234. iou = 0.0000    giou = -0.5495
235. iou = 0.0000    giou = -0.5509
236. iou = 0.0000    giou = -0.5522
237. iou = 0.0000    giou = -0.5536
238. iou = 0.0000    giou = -0.5549
239. iou = 0.0000    giou = -0.5562
240. iou = 0.0000    giou = -0.5575
241. iou = 0.0000    giou = -0.5588
242. iou = 0.0000    giou = -0.5601
243. iou = 0.0000    giou = -0.5614
244. iou = 0.0000    giou = -0.5627
245. iou = 0.0000    giou = -0.5640
246. iou = 0.0000    giou = -0.5652
247. iou = 0.0000    giou = -0.5665
248. iou = 0.0000    giou = -0.5677
249. iou = 0.0000    giou = -0.5690
250. iou = 0.0000    giou = -0.5702

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