I want to share a small piece of code to do Laplacian Blending using OpenCV. It’s one of the most basic and canonical methods of image blending, and is a must exercise for any computer graphics student.
WOW That was annoying! From the moment I started using a custom ROM on my Samsung Galaxy S2 (Cognition S2, to be exact), I started having issues with some apps.
Sometimes they won’t appear in search results, other times it will just say it’s not compatible. It drove me nuts!
Naturally I started with the forums – All the solutions there were about LCD DPI change. Funny, I never thought of that, but it did make sense. The only problem was that I never touched my DPI settings (Heck, I didn’t know I could).
(On a side note – tampering with the density is pretty cool… if you want to try it, you can download apps from the Market like LCD Density)
Back to my problem…
A very simple thing, although I couldn’t find on Google some place to copy-paste off, so here it is:
So, been working hard on my projects, and discovered some interesting things in Android possibilities for frame animation. Last time I was using an HTML approach, because of memory consumption issues with using ImageViews. However now my approach is using View.onDraw(Canvas) to draw BMPs straight off files, in an asynchronous way, and it seems to work pretty good.
Let me tell you how I did it
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The Unreachables [comic]
Just wanted to share of some code I’ve been writing.
So I wanted to create a food classifier, for a cool project down in the Media Lab called FoodCam. It’s basically a camera that people put free food under, and they can send an email alert to the entire building to come eat (by pushing a huge button marked “Dinner Bell”). Really a cool thing.
OK let’s get down to business.
Hi,
Wanted to report on some progress I made connecting the Samsung Galaxy S Vibrat smartphone and a 3M MPro110 pico (pocket) projector.
It is a fairly simple process, but I couldn’t really find any schematics of the video ports on either the phone (the 3.5mm headphones jack) or the projector (3.5mm composite video-in jack). So if anyone is trying to do this, they can find the wiring schematics here.
Hi,
I wanted to put up a quick note on how to use Kalman Filters in OpenCV 2.2 with the C++ API, because all I could find online was using the old C API. Plus the kalman.cpp example that ships with OpenCV is kind of crappy and really doesn’t explain how to use the Kalman Filter.
I’m no expert on Kalman filters though, this is just a quick hack I got going as a test for a project. It worked, so I’m posting the results.
Hi,
Just sharing a snippet of code. Part of a project I’m doing, I need to analyse the links in the Wikipedia corpus. While using the API is one solution, it doesn’t retain the order of where links appear in the page. It also returns links that are not part of the main text, which makes the linkage DB very cluttered.
So, I set out to parse the raw MediaWiki format all Wikipedia articles are written in, to get only the relevant links and in order. I call them contextual because they live inside the text and have context.
Initially I used string matching, and other complex string scraping parsing methods. It was a bust. There are too many end-cases to deal with. That is when I discovered PyParsing, the excellent parsing library. It did the job, and here are the results.
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Number Saver gets a new look
Number Saver has been around for a while, but when I got around to it, it was always 
about the features. I felt the time is right to polish (even a bit) my Android UI skills and try and make it.