OpenCV

问题 The current docs here says: Creating a New Project in Visual Studio To use the framework in Visual Studio, you need to Download and extract the binary files package Emgu.CV.Windows.Binary-{version}.zip For a Full guide to using the dependencies under Visual Studio and C# see the C# Tutorial. There is no link. I cannot find a download location for Emgu.CV.Windows.Binary-{version}.zip in my case it would be emgu.cv.windows.binary-4.3.0.3890.zip. I can't find this file anywhere including my hard

问题 I am trying to code a tool that automatically identifies and alphabetically sorts the images based on equipment number (19-V1083AI). I used the pytesseract library to convert the image to a string after the contours of the equipment label were identified. Although the code runs correctly, it never outputs the equipment number. It's my first time using the pytesseract library and the goodFeaturesToTrack function. Any help would be greatly appreciated! Original Image: import numpy as np import

问题 Using OpenCV, Whenever I save an image (from a camera stream) as JPG to the disk. The file size in bytes on the disk differs depending on the JPEG quality as expected. However, whenever I read the images regardless of the file size on the disk, the memory size remains constant. Is this normal? Also, there seems to be a massive difference in the disk and memory size of the image. I was expecting a much smaller memory size, somewhat relative to the disk size. For e.g. import sys import cv2 cv2

问题 Using OpenCV, Whenever I save an image (from a camera stream) as JPG to the disk. The file size in bytes on the disk differs depending on the JPEG quality as expected. However, whenever I read the images regardless of the file size on the disk, the memory size remains constant. Is this normal? Also, there seems to be a massive difference in the disk and memory size of the image. I was expecting a much smaller memory size, somewhat relative to the disk size. For e.g. import sys import cv2 cv2

问题 I'm trying to convert single images into it's depthmap , but I can't find any useful tutorial or documentation. I'd like to use opencv, but if you know a way to get the depth map using for example tensorflow, I'd be glad to hear it. There are numerous tutorials for stereo vision but I want to make it cheaper because it's for a project to help blind people. I'm currently using esp32 cam to stream frame by frame and receiving the images on python using opencv. 回答1: Usually, we need a

问题 Testing image I write a Python script that manually do a Erosion Morphological Operation to an image using the attached test image, but when I display both the original and altered image, this last one still looks the same even thought is it supposed to be eroded. I have 3 functions, my Main function, a RGB to Gray Conversion function and the Erosion function. import cv2 import math import numpy as np from PIL import Image, ImageFilter def main(): #Read image img = cv2.imread('pattern04.bmp')

问题 I tried to import OpenCV via native code but that not worked and I also tried react-native-opencv library but that library doesn't contain all OpenCV methods. How can I achieve to use OpenCV in my react-native project? Thanks in advance. 回答1: I have been struggling with OpenCV in react-native for a week now and finally got it working. There is this very good article https://brainhub.eu/blog/opencv-react-native-image-processing/ together with this repo https://github.com/brainhubeu/react

问题 Guys I am having problem on overlaying my video to webcam. I can open webcam without any issues or errors but my video is not being showed. I am trying to play my video in specific x-y coordinates.I take most of my code from an other stackoverflow question but I cannot find it know so that I cannot mention it here. So can someone help me to solve this? Why my video is not being played in my webcam? I have following code: from os.path import sep import cv2 as cv2 # load the overlay image. size

问题 I purchased a M1 Mac. Is anyone having issues with imshow with opencv. I did pip install opencv-python and brew install opencv and brew install opencv as well. import cv2 import urllib import numpy as np import requests url = 'https://www.visitcalifornia.com/sites/visitcalifornia.com/files/styles/welcome_image/public/vc_crtr_borntobewild_module_mendocino_st_rf_623667652_1280x640.jpg' from skimage import io img = io.imread(url) img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR) cv2.imshow('URL Image',

问题 I purchased a M1 Mac. Is anyone having issues with imshow with opencv. I did pip install opencv-python and brew install opencv and brew install opencv as well. import cv2 import urllib import numpy as np import requests url = 'https://www.visitcalifornia.com/sites/visitcalifornia.com/files/styles/welcome_image/public/vc_crtr_borntobewild_module_mendocino_st_rf_623667652_1280x640.jpg' from skimage import io img = io.imread(url) img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR) cv2.imshow('URL Image',