... Laboratory of Mathematical Methods of Image Processing . ... 3D image sharpening by grid warping . ... A method for sharpening of 3D volume images has been developed. The idea of the proposed algorithm is to transform the 3D neighborhood of the edge so that the neighboring pixels move closer to the edge, and then resample the image from the warped grid to the original pixel grid. ... The effectiveness of the proposed method is demonstrated with synthetic volume images and real micro CT images. ...