detection of paint defect in car door handles
I have to find paint defect in the door handles of the finishing project. Besides the software, I have to do lighting and photography myself. I give a few photographs as an example below. I would like...
View ArticleWriting filestream with python?
Hello Maybe I'm blind, but is there a way to write yaml-Files with Python using the filestorage functions? Normally, the docs contain both C++ and Python function calls, but python is missing here:...
View ArticleTypeError: images is not a numerical tuple
Hello all, I'm an OpenCV nube and am pretty clueless about writing the code currently. I found this code and adapted it to my needs but keep getting this compiling error. I've been troubleshooting it...
View ArticleHow to find edge pixel coordinates at corners of the bounding box
I am using dnn module of opencv for object detection in tensorflow. I want to know how to find pixel coordinates (x,y) at corners of bounding box of detected object as highlighted in blue on image...
View ArticleOpenFABMAP in Python
Is the [openFABMAP package](https://docs.opencv.org/2.4/modules/contrib/doc/openfabmap.html) also integrated into OpenCV Python? Can't find it ..
View ArticleInsufficient memory in function cvAlloc, how to release memory?
I have tried training my own classifier for a couple of times now (to detect cows) and just when I finally fine-tune my images in the positives data-set, I run into this while training:...
View ArticleCannot import cv2 after installation on windows
I installed opencv on my windows 10 64-bit machine. This is the link I used https://docs.opencv.org/3.3.1/d5/de5/tutorial_py_setup_in_windows.html After step 17, the build is successful and I see the...
View ArticleColor Correction for Scanned Images
I am writing OpenCV component that can implement color correction to a scanned image. Our image (actually we will process thousands of images - all same structure - but scanned in different time) , is...
View ArticleHow to read/write video with OpenCV in Python?
I want to create a small test application, and I need to input/output video with OpenCV Python API. How can I do that?
View ArticleHow do i find the angle of rotation of an image's text with respect to its...
I have an image which is horizontal. I can rotate the image by 90 degrees get the image in the proper orientation and can do further processing from there. How do I automate this as I am not always...
View Articleinput arguments of python's cv2.calibrateCamera
I get the following error when I try to calibrate camera using cv2.calibrateCamera: rms, camera_matrix, dist_coefs, rvecs, tvecs = cv2.calibrateCamera(pts3d, pts2d, self.imgsize, None, None) cv2.error:...
View ArticleIncreased Reprojection Error from Chessboard Calibration
So, I have written a script that performs chessboard calibration and the reprojection error I get is always greater than 1.3-1.5 pixels, even though the calibration parameters are correct (except the...
View ArticlePoor LBPHfacerecognizer results in Python OpenCV 3.3.0
I trained a face recognition system, using [this guide](https://github.com/informramiz/opencv-face-recognition-python) as starter code. We are trying to do face recognition on images that are 326x244....
View ArticleCreating high frame rate video using opencv in python
For one of my application i want to write code to process high frame rate videos in which a small white dot in a grayscale image will be moving in order to start building above application, i wanted...
View ArticleImage Classification and Segmentation in Deep Learnin
There are any tutorial or implementation for integrated object detection and segmentation using deep learning
View ArticleDependency on libvpx
Hello every one , i'm using OpenCv on Raspberry Pi. I just did an apt-get update & upgrade then opencv stops working. This line was the Problem: from .cv2 Import * ImportError: libvpx.so.4: cannot...
View ArticleHow not to crop image when using ThinPlateSplineShapeTransformer
Dear all, I am using the python bindings to cv and I perform a thin plate spline transformation using cv2.createThinPlateSplineShapeTransformer() My problem is how to display the whole image in the...
View ArticlevideoCapture with opencv3.1.0
I have anaconda 3.5 with opencv3.1.0 and python 3.5.4 which I installed using: conda install --channel https://conda.anaconda.org/menpo opencv3 The anaconda3.5/env.../Library/bin has...
View Articleopencv python binder does not bind anything
Hello I write a custom opencv module for working with custom image file and video formats. I already had a working library that I reorganize looking at the modules ximgproc, highgui and core. My...
View ArticleAnnoying persistent problem - Assertion failed (dims 0) in locateROI, file...
Hello everyone, I asked this on StackOverflow and no one had an answer: I've had this issue all day since installing my USB (well technically an AV to USB) camera and testing out just a basic video...
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