OpenCV Error: Assertion failed

[MyraBaba]

Hi,

After a while , around few thousands frame it gives below error. I couldnt figure it out .

Is there anybody faced same problem ?

thx

OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in Mat, file /opt/concourse/worker/volumes/live/d8bcd4d1-79b2-4aa5-797a-b95097f1118f/volume/opencv_1512680501887/work/modules/core/src/matrix.cpp, line 538
/opt/concourse/worker/volumes/live/d8bcd4d1-79b2-4aa5-797a-b95097f1118f/volume/opencv_1512680501887/work/modules/core/src/matrix.cpp:538: error: (-215) 0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows in function Mat

[githublet]

because of area not plus 1?

[MyraBaba]

it is happening when I playing with the number at mtcnn.cpp :
int MIN_DET_SIZE = 12;

to lower values such as 6 or 8.

try to speeding up the detection. Because I am using a stationary cam and there is always one face 1/4 of the screen and centered.

[githublet]

I think U should study MTCNN paper first，
then train your net with 6 or 8 size？
for better 11 is good ，11113 after s=2 k=3 then out 553

[xggIoU]

I also met the same problem：OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in Mat。I have modified it for a long time, but it is still unsolved. Does anyone know why?

[xggIoU]

I've solved this problem.

[githublet]

how ?

[xggIoU]

the code Rect temp((*it).y1, (*it).x1, (*it).y2 - (*it).y1, (*it).x2 - (*it).x1);
Mat secImage;
resize(image(temp), secImage, Size(24, 24), 0, 0, cv::INTER_LINEAR);
will lead the coordinate value to exceed the boundary value。so “image(temp)” will cause this kind of error. you can modify “if((*it).exist)” to "if ((*it).exist&& ((*it).y1<(*it).y2)&&((*it).x1<(*it).x2))" on second stage and third stage.

[xggIoU]

都是中国人，我说汉语。就是我测试过，坐标值有时候会超出行列的范围，在图像的矩形ROI选取时就要出错，所以要加个判断条件。

[githublet]

哎呀，那就好说嘛，加个qq 898600252，还有开源的东西，都是nms在box reg前做，我觉得这也是bug

[MyraBaba]

What is the maximum cpu core used ? my mac book only using 2-3 cores ? Can we increase it ?

[githublet]

@MyraBaba may be the first step，you can rewrite it with thread pool.

[MyraBaba]

if ((*it).exist&& ((*it).y1<(*it).y2)&&((*it).x1<(*it).x2))

@xggIoU I modified as you mentioned but I have still below error.

`OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in Mat, file /media/pi/APULLU-01/opencv-3.4.0/modules/core/src/matrix.cpp, line 538
terminate called after throwing an instance of 'cv::Exception'
  what():  /media/pi/cc-01/opencv-3.4.0/modules/core/src/matrix.cpp:538: error: (-215) 0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows in function Mat

`

[zyp2014]

if ((*it).exist&& ((*it).y1<(*it).y2)&&((*it).x1<(*it).x2))

@xggIoU I modified as you mentioned but I have still below error.

`OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in Mat, file /media/pi/APULLU-01/opencv-3.4.0/modules/core/src/matrix.cpp, line 538
terminate called after throwing an instance of 'cv::Exception'
  what():  /media/pi/cc-01/opencv-3.4.0/modules/core/src/matrix.cpp:538: error: (-215) 0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows in function Mat

`

it is may be In the mtcnn constructor, cols and rows , should be equal the image cols and rows

[santiweide]

It has been fixed! Thanks for replying!! At2019-05-16 17:00:48，spring [email protected]: if ((*it).exist&& ((*it).y1<(*it).y2)&&((*it).x1<(*it).x2)) @xggIoU I modified as you mentioned but I have still below error. `OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in Mat, file /media/pi/APULLU-01/opencv-3.4.0/modules/core/src/matrix.cpp, line 538 terminate called after throwing an instance of 'cv::Exception' what(): /media/pi/cc-01/opencv-3.4.0/modules/core/src/matrix.cpp:538: error: (-215) 0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows in function Mat ` it is may be In the mtcnn constructor, cols and rows , should be equal the image cols and rows — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.