An image mosaic is created from overlapping images. A first seam is shown between a first pair of overlapping images such that, on a first side, a first image of the first pair is shown, and on a second side, a second image of the first pair is shown. The first seam includes a plurality of pixels in the image mosaic. An indicator of an interaction with the image mosaic is received. The indicator indicates that the user has selected a pixel of the plurality of pixels of the first seam and has moved the selected pixel to a first location within an overlapping region between the first pair of overlapping images. A second seam that includes the first location is computed. The image mosaic including the second seam is presented. The second seam replaces at least a portion of the first seam in the image mosaic.