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Converting a Compressed Image to QImage

asked 2015-03-25 10:03:15 -0500

David L-B gravatar image

Hi all,

I need to create a camera feed viewer that will need to run on very limited bandwidth networks. As such I want to use Compressed images instead of the raw image.

My application is python and uses PyQt for the gui.

How can I convert the /sensor_msgs/Compressed message to a QtGui.Qimage ?

Thanks

David

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answered 2015-04-14 08:32:11 -0500

David L-B gravatar image

Found it myself:

qimage = QtGui.QImage.fromData(compressedImage.data)
imageMain = QtGui.QPixmap.fromImage(qimage)
self.ui.label1.setPixmap(imageMain)
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from PyQt4 import QtGui

peci1 gravatar image peci1  ( 2015-09-14 20:50:10 -0500 )edit

Can you elaborate how to give input to compressedIamge.data using publisher/subscriber ?

beingtrippy gravatar image beingtrippy  ( 2020-08-15 00:07:15 -0500 )edit

Have a look at ImageTransport::Publisher: http://wiki.ros.org/image_transport/T... .

peci1 gravatar image peci1  ( 2020-08-17 09:18:33 -0500 )edit

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Asked: 2015-03-25 10:03:15 -0500

Seen: 1,244 times

Last updated: Apr 14 '15