2-Dimensional Images

There are six two-dimensional images available, -- these are provided instead of the relevant programs to create them on account of intensive computation time requirements. They may be copied into one's directory from the MIDAS directory containing the source code of the GEOTEST context. All images are MIDAS Bulk Data Frames of dimensions $128 \times 128$, with the patterns approximately centered. All frames are of STEP 1 and START 1, in both dimensions. All patterns have infinitely sharp edges. The coordinates of a pixel pertain to its center, not to any extremity; this convention is rigorously followed.