Hi,
I have grayscale images in which I need to filter a long and thin rectangle.
My images are looking like this:
[image](http://www.bilder-upload.eu/show.php?file=31c480-1438763261.jpg "title")
Actually I would like to remove everything besides the long rectangle I marked with red.
The direction of the rectangle can change! So the rectangle can lay in every angle in the image.
Also the disturbance pixels are different all the time.
Therefore I do not really have an idea at the moment.
If you have any ideas, please share them with me :-)
Thank you very much.
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