segmentation license plate
I have this image as shown below. The 'k' is somehow not detected because it is connected to the background. Is there any way to detect the 'k' 
View ArticleIsolating a change in color in OpenCV.
So I've been attempting some image manipulation and I've come across a problem which seems simple but I can't seem to wrap my head about. How do you isolate a change in color? Say you have a grey...
View ArticleYML read() not working for DescriptorExtractor / Android
I'm trying to set parameters for the ORB descriptor extractor. It worked fine with 2.4 but throws an XML parsing exception with 3.0. Even the test code in ORBDescriptorExtractorTest.java seems to fail:...
View Articlehow to detect the side view of a a face using OpenCV
i know that it is easily possible to detect the front face using the sample app of opencv but according to my app requirement i also need to detect the sideview of a face
View ArticleAndroid development with OpenCV tutorial not working
Hi There! I am just following the OpenCV Android tutorial on the official webpage of OpenCV: http://docs.opencv.org/2.4.3/doc/tutorials/introduction/android_binary_package/dev_with_OCV_on_Android.html...
View ArticleMoment Value & Area validation manually not the same
Hello, I had tried to check using and a very simple image ( inside the image there is a square black and white). The dimension of the image is 100X100 pixel. The square point coordinate in the image...
View ArticleProblems linking opencv with qt when cross-compiling
Hi everybody ! I wrote a c++ code with qt on Linux, and I am trying to cross-compile for Windows following this tutorial:...
View ArticleOr after it really is a great smeary
Or after it really is a great smeary Ill hers what an urns absolute limits now dates a little bit cold is arm it’s made by women in mississippiinches this ultra strong accent like that word 300-101...
View ArticleOpencv 2.4.9 compatibility with windows versions(CE, 98, Xp to windows 10)
I am looking for compatibility list for Opencv (version 2.4.9) with different versions of windows OS(CE, 98, Xp to windows 10). Please share details/links where i can find these details.
View ArticleHandling motion-blur problem in ArUco augmented reality toolkit
I'm trying to handle motion-blur problem in ArUco augmented reality toolkit. The main idea of ArUco is to track a board of multiple markers in order to calculate the camera pose relative to the board....
View ArticleAccessing Y information from Raspicam (Python)
Hi, I am having trouble loading a YUV array in OpenCV. I am trying it on a raspberry pi and I used the code that I saw in the answer to this...
View Articleunable to determine angle because of points from line
I have an image from which i have created some lines. I have saved starting and end points of line. Lines are basically long side of rectangle that is bounding a white blob in image. Rectangles are...
View ArticleInverse Pattern
Hello All, I am working on Inverse Pattern. I have one chessboard image. I am projecting this on floor which is around 45 degree, so I can see the deformed chessboard on floor. If I would have...
View ArticleOpenCv 3 Beta -ICF classifier performance is very bad.
Hi, I am working with OpenCV_Contrib module and using xobjdetect module for pedestrian detection. I have trained ICF model using following params: icfParams.alpha= 0.02; icfParams.bg_per_image= 5;...
View ArticleAccess numpy array in openCV
Using the documentation [here](http://picamera.readthedocs.org/en/release-1.10/recipes1.html#capturing-to-an-opencv-object), in section 4.4 the code is:> import time import picamera import>...
View ArticleHow can I resize an image from the center?\
Hello! I have a contour, and I want to resize this contour and then draw the resized contour in same image, In another words, I want to create an external contour to the existent one. To this I need to...
View ArticleBackground Subtraction example
Hi, I am trying to follow this tutorial : http://docs.opencv.org/master/d1/dc5/tutorial_background_subtraction.html When I compile the code I get this error : Unhandled exception at 0x07EFC900...
View ArticleiOS Issues
Hello everyone, I recently went through the iOS tutorial and tried to get it working on an iOS 8.4 device. Aside from some property identifier changes, it seemed that the tutorial lined up pretty well...
View ArticleOpenCV Error: Assertion failed (abs_max < threshold) in stereoCalibrate
I am trying to run fisheye::stereoCalibrate but I run into an exception for CV_Assert(abs_max < threshold); // bad stereo pair This is an error I get when trying to run multiple images, however if...
View ArticleFlannBasedMatcher does not always return match
Hello, I am trying to use a Bag of Words approach using ORB with opencv. I have implemented it with SURF but I want an open source implementation (patent free). Because ORB uses int descriptors and...
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