Ask Your Question

Where can i find dlls for opencv?

asked 2013-03-31 11:27:21 -0500

matka5432 gravatar image

updated 2013-03-31 12:58:01 -0500

sammy gravatar image

Recently , i was trying install opencv on windows. All is okey, but i havent got dlls. When i try compile code, i get message "cant find (name of file).dll. Try install program again to slution problem ". I downloaded 15 dlls, but im tired do this and i dont want downloading still, couse i dont know how meny are thoose dlls. Where can i download thoose dlls all? is maybe other way to solution this problem ?

edit retag flag offensive close merge delete

2 answers

Sort by ยป oldest newest most voted

answered 2013-03-31 11:31:35 -0500

updated 2013-03-31 14:58:41 -0500

Download opencv for windows from

Dlls will be in the bin folder

Do not forget to add the dll folder to your windows system path variable and add correct libraries in your linker options. Tons of guides on google on how to do this.

Added on 31/03/2013

Took the liberty to actually show you which steps to take:

  1. Visit the following link:
  2. Install it in a preselected openCV folder.
  3. Structure should look like image 1, having this tested myself and using it on my windows system.

image description

Looking at that structure it is simple.

  • The lib folder contains the folder you have to link in your project settings.
  • The bin folder contains all openCV dll's.

You should focus at the build version, using x86 for 32 bit systems and x64 for 64 bit systems.

Then check if your path variable actually contains the openCV bin folder as seen in image 2.

image description

edit flag offensive delete link more


Computer still shows this message. In bin folder arent any dll file which is needed. Sorry that im writing here, but i have to wait 2 days

matka5432 gravatar imagematka5432 ( 2013-03-31 12:19:04 -0500 )edit go check these steps out. It is not possible if you download prebuilt libraries that bin folder is empty.

StevenPuttemans gravatar imageStevenPuttemans ( 2013-03-31 12:27:08 -0500 )edit

answered 2020-09-08 02:59:09 -0500

catox gravatar image

Solution worked for me. I run Anaconda / Python 3.7.4 on Win10 and had installed opencv via some conda package. When trying to load an .avi video created by VLC, I received the error message: "error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): ..." After copying the file opencv_ffmpeg3411_64.dll into the \Anaconda3\Lib\site-packages, everything works as expected. Thanks

edit flag offensive delete link more

Question Tools


Asked: 2013-03-31 11:27:21 -0500

Seen: 31,708 times

Last updated: Mar 31 '13