Electronics > Projects, Designs, and Technical Stuff
A simple tool to aid in reverse engineering a PCB
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cdev:
This free program is really two programs, enblend and enfuse that can turn multiple images into one and hide the seams for you. It does a really good job of it. They work great with images taken with the intention of emulating a scanner - for example, large photos of books or maps or PCBs. And of course you can use it to stitch several small scans with your small a4 or letter or legal size size scanner together to make big scans.

http://enblend.sourceforge.net/

Combine it with "hugin" (and at least one flavor of "sift" which I am sure at least you janoc are already familiar with) and you'll have a complete panorama workbench which can be used to do all sorts of things with multiple images including all sorts of perspective transformations and mappings.

http://hugin.sourceforge.net/

Its ideal for stitching images of any kind and coming out of the process with a square image with accurate sizes, with a little tweaking.

A flatbed scanner's scans sizes are based on the math of the x-y scanning process with its two stepper motors so usually are very close to being pixel accurate/ verifiably right.
orbanp:
This program is very useful as it is!

It would be great if you could save the combined image, and if it would handle png files as well.

Thanks for making this available!

Regards, Peter
cdev:

--- Quote from: orbanp on December 07, 2018, 12:46:01 pm ---This program is very useful as it is!

It would be great if you could save the combined image, and if it would handle png files as well.

Thanks for making this available!

Regards, Peter

--- End quote ---

I am not the author! Just a photographer who has been using enblend/enfuse for a long time for photos of stuff.

Hugin is great too!

You know, image recognition has come so very far in the last few years, we really are not very far away from a automated program that could literally suck in two good quality photos of both sides (of a two sided PCB) and/or perhaps some backlit trans-illuminated images to reveal its internal trace structure - that would be needed if it was a multi layer board-

A program that could take your hi-res photos of a PCB and generate a schematic from that automatically, labeling any questionable areas and perhaps suggesting measurements - taken at specific points - which it could also suggest - that could resolve ambiguities.

It might even be able to guess as to unknown values and suggest what the device's function might be.

 

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