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2013-03-30 15:06:50 -0600 | commented answer | Comparing two images whether same or not +1 In the future I'll link this answer to any SO answers I might write about this subject. Recursion is awesome. |
2013-02-06 11:22:37 -0600 | answered a question | OpenCV Bounding Box |
2013-02-05 18:18:53 -0600 | answered a question | QTKit didn't find any attached Video Input Devices! I've solved this issue with a temporary fix. This problem is probably specific to my system. |
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2013-02-01 12:36:01 -0600 | asked a question | Build OpenCV without Android I would like to disable Android support when building OpenCV. Is it possible? What CMake flags do I need to set to do that? |
2013-01-21 20:58:18 -0600 | asked a question | QTKit didn't find any attached Video Input Devices! The following error occurs whenever I try to run a simple application to grab frames from the camera of a Macbook Pro 13" (built-in iSight): I've tried passing This problem seems to happen with OpenCV v2.4.2 and v2.4.3 on Mac OS X 10.7.5. Any ideas? |
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2012-10-05 13:06:05 -0600 | commented question | Video On Label OpenCV Qt :: hide cvNamedWindows In the future, post the code itself, not an image of it. |
2012-10-05 12:56:48 -0600 | answered a question | Video On Label OpenCV Qt :: hide cvNamedWindows It's simple: don't call In other words, remove all those lines from your code, but leave the call to |
2012-10-05 11:54:57 -0600 | answered a question | How to set resolution of video capture in python with Logitech c910 & c920 Unfortunately, setting the size of the capture doesn't always work. One of the reasons being that sometimes the camera simply doesn't support the dimensions you are trying to set. According to this thread, you can try to use the old python interface (something like this): If this approach doesn't work, you'll have to resize the captured frame yourself! Check |
2012-10-05 11:43:24 -0600 | answered a question | Linux users: Stay away from OpenCV Version 2.4.2! That's not a question and this thread will probably get closed. I didn't see anything on the release notes that would make me go back to OpenCV 2.4.0. OpenCV 2.4.2 is the most recent version officially available for download. If you think you've found a bug, you can post a message about it on the Issue Tracker. |
2012-10-05 11:36:09 -0600 | commented question | Linux users: Stay away from OpenCV Version 2.4.2! We are going to down vote until you tell us why :) |
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2012-10-03 18:57:59 -0600 | commented answer | How to directly process ROI of preview data and display the processed data on screen? +1 I think this solution might be a little slower than the other one, but it's interesting. |
2012-10-03 17:26:21 -0600 | commented answer | How to directly process ROI of preview data and display the processed data on screen? Hi Rui, thanks. You might be right, but since the OpenCV docs are available, it's merely a matter of translating one language to another. I trust that the user that asked the question can read the docs :D |
2012-10-03 10:57:45 -0600 | answered a question | External integration I don't think so. You will probably have to download OpenCV sources and do your magic inside OpenCV's |
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2012-10-03 10:49:49 -0600 | answered a question | How to run slow video processing algorithms in background while showing camera output? It's not clear if you want to display the processed frames in the video window. So I'll assume you just want to show the original video to the user, and do something else with the processed frame. The most obvious approach is creating a 2nd thread to do your custom processing. The idea is that on every iteration of the main loop, your application will perform 2 tasks:
On this post I share 2 similar solutions, one using Linux pthreads and the other using Windows threads. |
2012-10-03 10:30:08 -0600 | answered a question | Android Target Practice App If you can see the laser beam, a color detection technique might work. Check these threads: |
2012-10-03 10:21:54 -0600 | answered a question | OpenCV / C++: Remove or hide cvNamedwindows() Just don't call OpenCV functions related to displaying images, like To learn how to display OpenCV images on a |
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2012-10-02 15:47:54 -0600 | answered a question | Does OpenCV support PowerVR SGX540 GPU? As you've discovered, OpenCV uses CUDA technology to speed up processing on the GPUs. For the moment, CUDA is still only supported by NVIDIA GPUs. For the moment, the answer is no, you cannot enjoy OpenCV's GPU acceleration with PowerVR GPUs because they don't support CUDA. However, last year OpenCV started working on a OpenCL module. The module is not yet available on OpenCV 2.4.2 but it seems it will be released soon. This is good news for you because it seems that PowerVR SGX530 supports OpenCL. |
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2012-09-30 19:37:36 -0600 | answered a question | How to directly process ROI of preview data and display the processed data on screen? Another approach: |
2012-09-30 19:01:27 -0600 | answered a question | Error when running a simple program There are several problems with your code:
You code would look something like this: |