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openCV - imwrite

asked 2012-12-30 04:35:51 -0500

JaRu gravatar image

updated 2012-12-30 04:36:40 -0500

Hi all!

I like to use the imwrite method from opencv to create a bitmap from a matrix.

http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html?highlight=imwrite#bool%20imwrite%28const%20string&%20filename,%20InputArray%20img,%20const%20vector%3Cint%3E&%20params%29

Which package from openCV I have to import in my python file so that I can use "imwrite"? I think opencv2? But how can I use this by ROS electric? Because when I import opencv2 in my python file, I get the message that there is no modul like this.

Thanks for help!

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What exactly are you trying to do with ROS? If this is an opencv question, then suggest you post on the opencv answer forum. If this is a ROS question, then maybe more info on your problem will help. Otherwise @dinamex answer is probably correct.

Kevin gravatar imageKevin ( 2012-12-31 07:27:27 -0500 )edit

I created a data array for the footstep_planner and I like to make a bitmap file from this data array. I know that I could do this with the imwrite method from opencv, but I could not import the opencv methods in my python file. I do not think that I have to use the opencv bridge, I have no image.

JaRu gravatar imageJaRu ( 2013-01-03 08:03:31 -0500 )edit

Ok ... this is an opencv question and not a ROS question. I use c++ not python, but if you include opencv2 that would give you access to imwrite in c++. However you do that in python should work too.

Kevin gravatar imageKevin ( 2013-01-03 13:51:07 -0500 )edit

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answered 2012-12-30 06:37:10 -0500

dinamex gravatar image

You should consider to use opencv_bridge

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Asked: 2012-12-30 04:35:51 -0500

Seen: 1,179 times

Last updated: Dec 30 '12