remove a segment from an image

tala

2017 6 20

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Thresholded opening-closing by reconstruction.jpg

hello i have an image that is come from echocardiography. i need to remove the mitral valve (that i colored it in red), to make the segments 1 and 2 (written in red) merged as one segment not two seperated segments by valve. i troed the imopen morphollogical operation, but it made the image very blured and meaningless. could anyone help me please?

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MathReallyWorks 2017-6-20

A small suggestion: Try using erosion and then dilation with suitable structuring element.

warning: It might remove some other parts as well.

Guillaume 2017-6-20

编辑：Guillaume 2017-6-20

As MathReallyWorks hinted, from the binary image it's going to be difficult to remove the unwanted part. We need to see the original image before binarisation.

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