returns the foreground region in image as a BoundaryMeshRegion object.
Details and Options
- ImageMesh is also known as image-based meshing and converts 2D or 3D image data such as MRI or CT to a computer model. Constructed models can be used in a variety of ways, including the finite element method for solving PDEs.
- ImageMesh works with arbitrary 2D and 3D images, taking the nonzero pixels of the image as foreground.
- ImageMesh has the same options as BoundaryMeshRegion, with the following changes and additions:
CornerNeighbors True whether to connect foreground pixels diagonally across corners in 2D DataRange Automatic the range of mesh coordinates to generate Method Automatic the method to use
- In 2D, possible settings for Method include:
"Exact" exact representation of the contour "LinearSeparable" approximate contour by local linear separation "MarchingSquares" contour computed using marching squares "DualMarchingSquares" contour computed using dual marching squares
- In 3D, possible settings for Method include:
"Exact" exact representation of the surface "MarchingCubes" surface computed using marching cubes "DualMarchingCubes" surface computed using dual marching cubes
Examplesopen allclose all
Upsample an image by first approximating its smoothed shape and then rasterizing:
Compare with the magnified version of the image:
Segment a part of an image and convert it to a mesh:
Obtain an image of the Great Salt Lake:
Regularize the image with a mean shift filter:
Obtain a segmentation via region growing:
Create a mesh of the lake surface:
Compute the eigenfunctions of the wave equation on :
Display the oscillation modes:
Wolfram Research (2016), ImageMesh, Wolfram Language function, https://reference.wolfram.com/language/ref/ImageMesh.html.
Wolfram Language. 2016. "ImageMesh." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ImageMesh.html.
Wolfram Language. (2016). ImageMesh. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ImageMesh.html