Friday, July 19, 2013

Wednesday, July 10, 2013

Define a ROI by coordinates and size in ImageJ

Problem: I need to create a ROI in a very large 3D image (4020 x 4020 x 880) by ImageJ. The use of the mouse pointer is not so handy because it's not easy to locate the top-left vertex of the ROI at the exact wanted voxel location, due to the large size of the image.

Solution: Edit/Selection/Specify opens a plugin that allows defining manually the coordinates of the top-left vertex of the ROI, its height, width and on which slice to show you (if you are working with a stack of 2D images).