How to Read DJI FPV Feed as OpenCV Object?
You can find my full question and code here: https://stackoverflow.com/questions/56284630/how-to-read-dji-fpv-feed-as-opencv-object I hope this is ok, since I was having issues formatting my code from...
View ArticleCould I use ArUco module of the Open Cv for commercial purpose?
Hello! I'm newbie of Open Cv. I have some questions about ArUco. 1.I heard that ArUco module of the Open Cv is under BSD License. Is that means I could use ArUco for commercial purpose? 2.Could I use...
View Articlepipe video frame and frame info from FFMPEG
Hi All, I'm trying to pipe a video in from FFMPEG to opencv, i would like to pass the image and info for each frame in an attempt to get the most accurate frame time stamps when i am processing the...
View ArticleUse pre-trained cnn to classify 6-channel-mats
Hey there, I have a pre trained cnn, which was trained on 6 channel inputs (created out of two bgr images of same size). vector inputs; vector temp; Mat blob; cv::split(image_1, inputs);...
View Articlepaper edge detection and perspective transform
before image https://imgur.com/f190UFk processed image https://imgur.com/JkEhWkS you can see the "processed image" has highlight, so the transform works bad. any possible to make an rectangle that...
View ArticleOpenCV.js unable to track coloured circle and draw circle on target.
Hi, I have a code to track a random input target and draw a rectangle on top of my target, but I need to track(Green colored circle and draw a circle on my target, I have searched for it in OpenCV.js...
View ArticleHow to get undistorded point
Hello, I use that line to get undistor fisheye images: cv::fisheye::estimateNewCameraMatrixForUndistortRectify( camera_matrix, distortion_coefficients, image.size(), cv::Mat::eye(3, 3, CV_32F),...
View Articleimwrite not working when Spawned by Crontab or Systemd??
Hi all, I've written a Raspberry Pi application (Ubuntu Mate) that's essentially a time-lapse camera. Every 30 seconds, it snaps an image and writes it to disk. When I start the application manually...
View Articlehow to translate this source code in python to java
follow this link [link text](https://www.pyimagesearch.com/2016/10/03/bubble-sheet-multiple-choice-scanner-and-test-grader-using-omr-python-and-opencv/) please help me.
View Articlejava opencv Helloworld - how?
I really am missing something. I can build opencv on my raspberry pi, and end up with opencv-XXX.jar and libopencv_javaXXX.so in /usr/local/share/OpenCV/java/ Great! I believe the so file is...
View Articleopencv-contrib-python 3.4.4.19 did not install data folder on Raspberry Pi
For some reason my cv2.data.haarcascades variable points to '/usr/local/lib/python3.5/dist-packages/cv2/data/', but that location only has __init__.py and __pycache__ folder (which only has...
View Articlei want to output coordinates.
hi all [C:\fakepath\캡처.PNG](/upfiles/15587715913520238.png) i want to output blue circle and red circle's coordinates. (just (x, y) ) but i don't know how. :( how to get coordinates? I've already made...
View ArticleSINGLE POINT PERSPECTIVE TRANSFORM
Hi, I am new at this forum. I am using python with raspebrry pi3 to capture images (source images) from video (frames) and my camera is not perpendicular to planar object interesting for me. As I know...
View ArticleStrange error in getMemoryShapes function
Hello everyone! Currently, I'm try to solve the object detection task. The model in used is MobileNetV1 + SSD from https://github.com/qfgaohao/pytorch-ssd/blob/master/vision/ssd/mobilenetv1_ssd.py, The...
View ArticlePython 3.6.5 + Opencv 3.4 imshow function
I configured opencv for python on the Windows 10 platform. TEST CODE: import cv2 import numpy as np img = cv2.imread("C:\\Users\\Desktop\\xin.jpg") cv2.namedWindow("image") cv2.imshow("image",img)...
View ArticleIn gapi, is there a way to create submatrix header?
I am building a new app and tyring the new gapi . I want to modify a subrange of a matrix, is it possible to do this in gapi ? Or is there a way to make a submatrix header in gapi?
View ArticlePython - Multiple persistent modifiable rectangle selector
Hi, I am currently trying to display an image with several highlighted and modifiable region of interests. I want to solve it by using for example the rectangleselector from the matplotlib.widgets....
View ArticleHow can I use CNN for algae cell counting?
HI! I'm planning to use image processing through CNN to count the cells of algae, the cells are a straight line, it looks like a hair strand, can you guys help how can I use CNN to count cells that...
View ArticleHow can define the follwing ROI?
Hello I have a small problem with my code. I have made the full code to identify a region of interest, but the big problem is .. I have a small static camera who capture empty parking spaces. I need...
View ArticleContours generating invalid points
I am generating contours the usual way: equalizeHist(inputImage, inputImage); Laplacian(inputImage, inputImage, CV_8U, 7); cv::threshold(inputImage, inputImage, 15, 255, cv::THRESH_BINARY);...
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