How to Stitch Overlapping Photos into a Panorama Using MATLAB and Raspberry Pi?

hi.i want to scan a large page like black board with kind of manual scanner but it should be large too, so i want know that we can simulate this action with camera? it means that we can take shot part to part from page in seconds for example 1,3,6,...with camera then with using raspberry pi and its MATLAB attach this photos together so that the duplicate parts are deleted?in other word i want to simulate panorama in MATLAB or an app you offer. if you can help me please answer my question thank you.

Hi there -- my understanding is that what you wish to do is a bit more complicated than you seem to suggest. Let's say I use my camera to take a sequence of say 10 photographs where the first one is to the left of my "panorama" and each one moves a bit more to the right.

It's not as simple as just working out any overlapping regions in the horizontal plane -- it may be that my second picture is say 2 degrees higher than the first -- and my third picture is 3 degrees lower than the second -- so now I have to perform pattern matching in the vertical plane. Also, we have to decide what to do with the missing parts of the image (if image 2 is 2 degrees higher than image 1, then when I stitch them together I'll have a white gap at the top of image 1 and at the bottom of image 2 -- so do I wait until I get to the last image and then "chop" off any unwanted parts at the top and the bottom.

Also, there are lighting levels to be taken into account -- if you are taking an outdoor scene -- a cloud could cross the sky between you taking image 1 and 2 -- suppose this darkens the scene at the boundary between the two images -- and on it goes...

PS I think there are already apps for this sort of thing -- if you really want to do this yourself, you might want to read the brochures for the other apps to see all the features they provide so you have a better idea what you want to do.

Oh -- I just re-read your question -- if you just want to take multiple pics of a large blackboard and stitch them together, that will be a lot easier (but still not trivial)

With all that complication, it's amazing that my phone can do this automatically.I don't even have a special app for this. You can get some odd effects if someone is moving but for a static scene it works well enough.If you're trying to do this in a PC, I'd look at image processing applications and see if there's something out there that will work. If you can find some open source code, you might be able to modify it...

Thank you so much... this exactly what i want to do ...i want to simulate the action of scanner that scan the black board but with using camera, like what you said. I want to make such a thing for my proposal, i would be so thankful if you could help me.

Thanks alot. But im not searching for an app to take panorama photo, i want to simulate panorama with kind of programing app like MATLAB..to simulate the action of scanner.

OK, I understand that you are not looking for the app but basically want to program something that will do the same thing with a series of photos scanning from,say, left to right. Is that correct? If so, perhaps studying an open source app that creates a panorama would give you a good start.
Or is it that you have a series of photos spaced in time that you want to find the differences of?  I'd think that would be just a matter of comparing pixel by pixel or row by row.  I might be able to program something to do this in MATLAB even with my limited skills but it wouldn't be very efficient.