How to stream video from IP camera using openCV python
I am trying to stream video from an IP camera using opencv python.
View ArticleFreeing Memory with Python
I'm using OpenCV 3.1, Python 3.5, and Windows 7. When I load large pictures I get an insufficient memory error. I believe I would be able to avoid this if I were able to free the pictures I loaded in...
View ArticleHow to train HoG manually in Python?
Hi guys, I'm trying to train my SVM detector and set it on the SVM in detectMultiscale-method implementation of HoG. I want to do it with the Inria person data set in order to achieve maybe the same...
View ArticleFacial keypoints detection
How to use dlib library in python to detects facial keypoints in an image???
View ArticleHoughLinesP line gap parameter eliminating lines
Hi, very new to OpenCV (and image processing), been working to get line detection up and running using HoughLinesP. My code is below, with my input image following, which is drawn in paint (although...
View ArticleTkinter dont allow me to use memory for refreshing GUI
**There is a my sample kod. I want to do video rendering. For this propose, I wrote two thread one capture the screen from the camera consistently and save to disk and other one take this image from...
View ArticleHow to use ArUco Marker Detection in a java or python program?
Hello guys! I can not get the ball rolling to use ArUco Marker Detection in a java program... Any help is welcome. My environment is: - Mac OS X El Capitan 10.11.5 - Java Version 8 Update 92 (build...
View ArticleWhy am I getting a different Hough line output from that given in the tutorial.
I copied the same code as given in this tutorial for hough lines : [tutorial](http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_imgproc/py_houghlines/py_houghlines.html). This is my output:...
View ArticleHow can I detect center of road(as a line) if contours for road are drawn.
I am interested in obtaining a center line of road. I am working on video frames(bgr). Then applying threshold,erosion and canny edge detection. Further I am applying sobel derivative and then finally...
View ArticleCv2.findTransformECC is causing blue screen
Hi, each time I try to run this code I'm getting a blue screen. Is openCv bugged? this is a laptop with windows 8.1, no hardware modification, python 2.7x64 installed and openCv 3.1 x64 cv2.py is used...
View ArticleDense Optical Flow(Farneback) Output
I have another question regarding the output matrix of OpenCVs Dense optical Flow function (Farneback). I have asked a question similar to this recently...
View ArticleHow to easily get a depth map in opencv python?
So for starters, I'm using a raspberry Pi B with 2 Logitech C170 webcams this is a little project I'm trying to do for weeks and can't seem to get a good result. Here is what I came up to while...
View ArticleHow can I get one single frame from a video file?
I would like to use Python and the OpenCV wrapper to display a video that is just being recorded to the hard drive in a Python program. To achieve this I have to get the last single frame from the...
View ArticleStroke width transform
how to find the stroke width transform of an image using opencv (python).
View ArticleRemove contour around a certain color
So i have a skin color range that I'm using to draw the contours of any skin color my camera sees, i.e, it'll draw contour on the hands or faces etc. However, the range of color that I am using to...
View ArticleCamera Calibration using ChArUco and Python
Hi everyone, I've being looking for Python samples on how to calibrate a camera using the ChArUco methods, which are in the ArUco library inside the opencv_contrib, and have failed to find one. If...
View ArticleHand Posture Recognition using Machine Learning
Hey guys, I am currently working on my thesis and for that I am trying to recognize different hand postures for controlling an embedded system. My first implementation used simple skin color...
View ArticlePython - Undistort script won't work
I wrote the following script to undistort multiple photos in one go by defining a containing folder. Because of the fact that the camera I am using is calibrated professionally and all of the...
View ArticleSparse Bundle Adjustment for Python in Windows
Hi, I have been looking all over the web in order to find good a sparse bundle adjustment python code but haven't being able to. A constraint I have is that I am in windows. If any one can provide a...
View ArticleCan't open image from Python
From IDLE, I do: Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> import...
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