I need to hire a research consultant
Hello all, I am currently working on a private project where I would like to hire the expertise of a private consultant in the field of gesture recognition/computer vision. If anybody here is in the...
View ArticleHow can I calculate positions of two moving cameras looking at the same scene...
Let's say I have two cameras adhering to the assumption that at any given moment, there is a finite number of features visible from both. Both of them start off at a certain baseline b between them,...
View Articleimage data processing in cv::Mat
Dear All, i have image info in Z matrix, say cv:Mat Z; If i use x, y index to access the data in the unsigned char data matrix inside Z, how can I access the green channel data value only for that...
View ArticleDetect variations of a subimage in image
I'm currently trying to figure out how i can detect a subimage in an image. However i'm not sure which techniques i should apply.. Example: trying to detect finger nails in an image, such that i can...
View ArticleEvaluation model of Haar cascade classifier
Good morning all. I create a classifier following this guide http://docs.opencv.org/2.4/doc/user_guide/ug_traincascade.html and i have the file .xml. How can i do the evaluation model of the...
View Articlelocalize the eyes using ROI
I have used face-cascade classifier and found the face and found eyes region using ROI without using eye cascade as shown in the image . Now I want to apply ROI...
View ArticleRemove motion blur on text
I have images of scanned pages that has blurred text. I need some way of "unblurring" the text, or cleaning the text, so that it is ready of ocr'ing by something like tesseract. A sample image can be...
View ArticleOpencv LBPHFaceRecognizer Train data in Python
I am working on face recognition with LBPH algorithm and i need to save train data to database. recognizer = cv2.createLBPHFaceRecognizer() recognizer.train(images, np.array(labels)) i need to see...
View ArticleDetecting objects in OpenCV
I've got problem with detecting orange ball in OpenCV. In the pictures you see results after function inRange and the second one is thresholding (which is now not in the code). In both ways HoughCirles...
View ArticleDetecting Page Corners
I would like to detect the corners of the "rectangle" within the below images as marked by the "arrows". Any suggestions on how to approach this or what to use would be appreciated. I am new to OpenCV...
View ArticleLucas Kanade feature tracker
I've built a new project using the file "lktdemo.cpp" provided in OpenCV folder. It builds successfully but when I run it, it uses the camera of my laptop. The camera of my laptop is ON but 'm unable...
View ArticleDetermine how much an image was transformed by
Let's say I have an original image and it goes through a random affine transformation, what is the best way to figure out how much affine transformation was applied? I already have a method of...
View ArticleNormalization of really small numbers
I came across this problem today while calculating Hu invariants for some digits. When the input image was NOT treated as binary, the moments were very small, often much smaller than DBL_EPSILON (which...
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View ArticleAre there currently plans to support the new android Camera2 API?
I want to make use of spot metering and it isn't working through OpenCV with the Samsung S6. However, it does work using my Camera app. I'm thinking that this is because the feature is only being...
View ArticleBuild Errors With OpenCV 3.0 - VS2012 - Win 8.1 - CUDA 7.0
I am trying to build OpenCV 3.0 on the above platform (64 bit) and am running into an error doing what would seem to be the most straight forward approach. First, I downloaded OpenCV 3.0 and...
View ArticleAccess violation writing location
I want to develop a sketch matching game using OpenCV. What I am trying to do is match an image and user's drawing using the Shape Context matching. I can successfully compile and run my project but...
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It is safe to say that you are battling hard with hostile to maturing imprints? On the off chance that yes, then you have to stop on this intense survey that offers you some assistance with knowing...
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View ArticleSegfault in convertTo Android OpenCV 2.4.x->3.0
Yesterday I moved my project from OpenCV 2.4 to 3.0. I've tested the code in VisualStudio. Everything works fine, but in Android I'm getting errors when I'm trying to run the code. I've built the...
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