SuYo's profile - activity

Thank you very much, but do I need to make negative images also lesser than 80 pixels. I have read paper from Viola and Jones paper referred in your link. But what does that -maxHitRate and -maxFalseAlarmRate means. Is it detection rate and false positive rate?

I want to create a cascaded classifier to detect my simple pen. So, I took about 15 photo of my pen all of width = 476 & height between 43 to 65. Then I took 83 background images all having width 1280 and height 960. I created successfully vec file with 14 samples: opencv_createsamples -info positives.txt -vec vecfile -bg bg.txt -num 15 -w 120 -h 16

and checked for it using: opencv_createsample -vec vec_file -w 120 -h 16

so far I get that these command created all the vec files. opencv_traincascade -data classifier -vec vecfile -bg bg.txt -numPos 15 -numNeg 83 -numStages 18 -precalcValBufSize 384 -precalcIdxBufSize 256 -w 120 -h 16

but the training stoped at STAGE 4 generating error

Required leaf false alarm rate achieved. Branch training terminated

Can you please help, what was wrong? What is false alarm rate??

Thanking You in Advance.

Please Help

Hi there, I created a classifier using opencv_traincascade but this classifier generates error when I give a image without the positive object which is: error: The node does not represent a user object (unknown type?) Help?

thanks a lot ... for your support :)

Can I have some good tutorial to create a classifier stepwised? Tired of searching...bot no good one found

Hi, Can you tell me how to know how many number of positive samples to generate? And how to feed paramaters into opencv_traincascade such as -numPos -numNeg -numStages -precalcValBufSize -precalcIdxBufSize etc.

sorry, I have another problem. I have 2 +ive samples inside "PositiveImages", 2 -ive in "NegativeImages" directory.All +img list in pos_desc.txt and -img list in neg_desc.txt I give the cmd > opencv_createsamples -vec pos_vec.vec -info pos_desc.txt -bg neg_desc.txt -num 9 it created only 2 samples . What did went wrong? And also please guide me how to use opencv_traincascade with same vec file. Thank you

thank you , thank you very much for helping me champions!.. it worked

hello there, I am trying to run opencv_createsamples.exe on my computer running Windows8(64-bit). My file is in directory C:\Emgu\bin\opencv_createsamples.exe. So whenever I try to run it from its directory using cmd it gives error: "The program can't start because opencv_core249.dll is missing from your computer.Try reinstalling the program to fix this problem." I've also tried re-installing it but it doesn't work. Can somebody help me?