Download BuckleFinder here (Windows Executable File, 128K)

INSTRUCTIONS:

1)  Open BuckleFinder by double-clicking on it.
2)  Click on load input picture to select an image file.

3) Choose the bitmap file to load and click ok. (For best results, bitmaps should be in black & white format, and be no larger than 500 by 500 pixels.)

4) Once the bitmap file has loaded, click on load the table in to convert the bitmap into the pattern matrix. Each cell in the pattern matrix corresponds to a pixel in the bitmap, with 1 given to areas that are black (corresponding to a pattern) and a 0 to areas that are white. The control picture that appears next to your bitmap is the area is a visual rendering of the pattern matrix.

5) Set the following parameters for the model:

• Initial Concentration of A (A), Concentration of B (B)
• Water Coeff (W)
• Diffusion Coeff (DA/DB)
• Diffusion Steps
• Swelling Cost (c)
• Alpha (α)

The parameters for visualization—grayscale control and buckle resolution—should be set at this time, as well. After all of the parameters are set, click on Run the game to run the simulation.

6) Once the simulation has completed, a pop-up window will appear:

The program has created a comma-delimited text file in the directory from where the image was loaded that has the absolute values listed for total energy, swelling cost, and water benefit for each time step. Click ok to access imaging functions.

7) To see a grayscale rendering of the concentration of AB, click show. Adjusting the grayscale control slider adjusts the contrast of the image. (White are areas of high concentration of AB, while black are areas of low concentration of AB)

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8) To see where the buckles would appear, click on show buckles. The algorithm will find local maxima of the concentration of AB, and plot these areas in blue. Areas of the original feature from the stamp will be plotted in green. Use the Buckle Resolution slider to adjust the size of the area that the program searches for local maxima.

9) At any time, press Save Picture to save a bitmap of the current control picture window to the same folder that the original picture was loaded from.  

10)  To exit the program, go to file and exit.

 

 Sample Patterns (To save, right-click and select “Save picture as”)