Unable to build application with Visual Studio 2010 and openCV 3.0
I successfully compiled code with Visual Studio 2010 and OpenCV 2.4 Now I'm trying to upgrade to OpenCV 3.0, but I'm unable to compile code. I'm using precompiled version from opencv website and I'm...
View ArticleHow the 3 basic Haar features are formed from the Haar wavelet ?
I have been digging a lot and to this point I know exactly how Viola-Jones algorithm works and how the haar cascade file is prepared. I am more interested in knowing the fact that how the 3 basic haar...
View ArticleException while drawing oriented MBB with minAreaRect
As stated in the title, i'm trying to draw the oriented minimum bounding box of a blob through the use of findContours() and minAreaRect(). The problem is the following exception is thrown at runtime:...
View ArticleWhat type of distance measurement is used in CreateLBPHffacerecognizer
Hello there, I am trying to find out what is the type of distance measurement that is used in predict() function after having LBPH training?
View Articlemean prediction in a image
Hi everyone. I just want to ask what means mean prediction in a image, to improve the quality of its. I tried to found some information on internet, but I'm not sure of what to do. From wikipedia, I...
View ArticleEncryption in OpenCV
Hey all, Does OpenCV implement any encryption algorithms? I understand that OpenCV can be used to implement, for example, image encryption, but I want to know if OpenCV provides any image encryption as...
View ArticleHow to detect the maximun of objects using opencv
Hello How are you ? So i have one question ,is there any methodology to detetc the maximun object including in the image ?
View ArticleOpenCV unable to read certain jpg's
OpenCV can't open certain jpg files:> import cv2>> img = cv2.imread('/absolute_path/sun_afmzwxkzmxkbamqi.jpg',0)>> img is None # True Image can be downloaded here:...
View ArticleЛото в СССР
онлайн казино отзывы игроков, http://xn--80adfb4acwb5b.xn--p1ai. Розыгрыши вСоветском Союзебыливеликими, они были такпопсовы, что были гораздыулучшать целые ответвления общественной жизни, и в то же...
View ArticleCalibrate depth images from Kinect with given examples.
I want to calibrate my kinect camera. The RGB-Images work fine with `./cpp-example-calibration` but what do I do with the depth information. How do I calibrate these pictures or can i at all? Because...
View ArticleDetecting fog/haze in a video frame
Hi, I have a lot of video shot on my go-pro that isn't very clear when there is a lot of fog/haze. I am trying to write a program that can somehow detect the fog, apply a mask on the frame and give out...
View ArticleCalculating center of object
Hello, currently I am trying to calculate the center of an object using the following code import cv2 import numpy as np vid = cv2.VideoCapture(0) vid.set(10,.05) def processVid(): while(True): ret,...
View ArticleHow to get data from camera on Android for now?
Hello World!! everyone I heard bad news from changelog about Native Camera on Android. https://github.com/Itseez/opencv/wiki/ChangeLog > The other, a bit sad but inevitable> news – we had to...
View ArticleHow to save the flann index in opencv for java
Hello, Can someone help me to save a trained flann index? In time I serialize all descriptors to json and reoad all descriptors after the program is started. For a lot of descriptors this takes a long...
View ArticleYUYV422 to BGR
Good morning! Can anybody help me to convert between YUYV422 and BGR pixel formats? 1) This way i load the pixel data: cv::Mat cameraFrame = cv::Mat(h, w,CV_8UC3,(char*)YUYV422_data); 2) i need to...
View ArticleFire detection using opencv
I have read a comment here http://answers.opencv.org/question/8375/fireflame-detection-using-opencv/ to using cascade classifier but isn't cascade classifier only good for rigid objects?
View Articleimage animation
Hi All I am trying to create an animation of an image such that it looks like panning-in. can anyone give some idea how can i do it with OpenCV? Any help would be great. -openaeem
View ArticleSearch small images on one images.
I have a picture in which there are small pictures. They are separated by black background.Further I save this small pictures.Please help me i am new in OpenCV.I know that I have to find edges.How...
View ArticleOpenCV loader initialization
In an android application which uses opencv4android I have seen these two methods to initiate opencv library, one in OnResume and the other in the beginning of the code. What is the difference? are...
View Articlecan't import opencv in eclipse
can you guys tell me the steps ,i found many steps online but nothing is working for me,im using eclipse and java jdk,i want to create a android app using opencv
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