This worksheet is used to test and experiment algorithms blur and see output
With this spreadsheet does not seek execution speed, however, view and analyze results.
I built this tool to find an algorithm for shadows.
Now share it with you because, surely, that many people can be useful and helpful in their investigations.
The spreadsheet is very large. It uses each cell, like a pixel. to draw the images. I used images from 64x64 pixels to run on midrange computers.
I have not locked the worksheet so that each user can adjust to your needs.
The spreadsheet has macros. Macros are not dangerous, are not a risk to your computer.
You can check it.
To enable macros to select.
Tools> Options> Security> Macro Security to "Medium" ("Confirmation required Before executing macros from untrusted sources.")
The license file is Creative Commons (by-nc-sa) by-attribution, non-commercial, share alike.
I hope you find it useful. Enjoy.