I want to run the following Python code from this OpenCV tutorial in VS Code: import numpy as np import cv2 as cv cap = cv.VideoCapture(0) if not cap.isOpened(): print("Cannot open camera") exit() while True: # Capture frame-by-frame ret, frame…
I am trying to remove the checkered background (which represents transparent background in Adobe Illustrator and Photoshop) with transparent color (alpha channel) in some PNGs with Python script. First, I use template matching: import cv2 import numpy as np from…
I have trained a certain model and have the weights (weight.pt) and am able to detect objects from images and videos, but the problem is the webcam is not opening. In google collab to train my model !git clone https://github.com/ultralytics/yolov5…
import cv2 data_cara = cv2.CascadeClassifier('haarcascade_frontalface_default.xml') """imagem = cv2.imread('cara.jpg')""" camera = cv2.VideoCapture(0) while True: leitura_frame_sucesso, frame = camera.read() frame = cv2.flip(frame, 1) imagem_cinza = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) coordenadas_cara = data_cara.detectMultiScale(imagem_cinza) for (x, y, w, h) in coordenadas_cara: cv2.rectangle(frame, (x, y), (x+w, y+h),…
Which native iOS framework is best used to eradicate this cpu hog written in OpenCV? /// Reduce the channel elements of given Mat to a single channel static func reduce(input: Mat) throws -> Mat { let output = Mat(rows: input.rows(),…
I'm trying to add a pnp solver to opencv I'm working on ubuntu OS. first I followed a tutorial on how to install opencv from source by cloning the repositories, then I tested the example and it worked so it…
Here is a simple script: import cv2 img = cv2.imread("img.png", 0) cv2.imshow("Test", img) print("Before") cv2.waitKey(0) print("After") After closing the Test window, the output of terminal was like: $ python test.py Before It seems that cv2.waitKey(0) blocks the program and I…
Consider the following image: and the following bounding contour( which is a smooth version of the output of a text-detection neural network of the above image ), so this contour is a given. I need to warp both images so…
I want to build and run a c++ opencv code using docker. Here is my dockerfile: FROM nvidia/cuda:11.5.0-cudnn8-runtime-ubuntu20.04 FROM ubuntu ARG DEBIAN_FRONTEND=noninteractive RUN apt-get update && apt-get install -y g++ git wget cmake sudo RUN apt-get install -y build-essential cmake…
I am working with VSCode 1.68.1, Ubuntu 20.04 I am following link (https://programming.vip/docs/3d-pose-estimation-using-aruco-tag-in-python.html) to achieve pose estimation for aruco marker But I am getting below error: aruco.drawFrameAxes(dst1, mtx, dist, rvec[i, :, :], tvec[i, :, :],0.03) AttributeError: module 'cv2.aruco' has no…