The previous question should have revealed some images in which the processPuzzle function didn't accurately segment the puzzle pieces. Your next task is to modify the function to improve your results. Specifically, you will adjust the Sensitivity parameter found on line $19,$ which starts with an initial value of $0\mathrm{.}60.$

Use the Image Batch Processor App to test the function with different sensitivity values until you find one that accurately segments the images from the previous question. $($Hint: the initial value is relatively close.$)$

What is the Sensitivity value that accurately segments the puzzle pieces?