I want to identify missing objects (i.e.: screws, nuts....) from a tool or an an object (i.e.: dynamo)

we have an issue that workers use tools and after using it some items (screws, nuts…) fall off the tools and we have to do a manual check after each time the tool is used by doing manual visual inspection.
We want to automate that check by taking a base picture of the tool and then after each time we just take a new picture and the program can mark the missing items.
if any one is willing to do that for us please contact me at amrbrkt@yahoo.com for immediate hire for that work and he can create the program for us.

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