Instructions
Open Adobe Photoshop or the free version of GIMP or Paint.NET (see Resources).
Click "File" in the navigation bar and select from the drop-down menu "Get photo." The wording will be slightly different in each program, but the steps are the same.
Click the folder and the image you want to edit with the program. Click the "OK" tab in the bottom right of the window, which will open the picture in the software.
Click on "Filter" in the navigation bar and select "Filter" from the menu. Select "Craquelure" blur from the drop-down menu. Adjust the sliders for "Crack Spacing," Crack Depth" and "Crack Brightness" to achieve the look you want for your pictures. When you are satisfied with the results, click "OK" to add the effect to your photo.
Click "File" and select "Save as." Give your new photo a different name from the original and save it to your computer's hard drive.