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1.이미지 회전rotated.pyimport cv2 # Reading the imageimage = cv2.imread('Lenna.png') # dividing height and width by 2 to get the center of the imageheight, width = image.shape[:2]# get the center coordinates of the image to create the 2D rotation matrixcenter = (width/2, height/2) # using cv2.getRotationMatrix2D() to get the rotation matrixrotate_matrix = cv2.getRotationMatrix2D(center=center, angle=..

cropped.py# Import packagesimport cv2import numpy as np img = cv2.imread('Lenna.png')print(img.shape) # Print image shapecv2.imshow("original", img) # Cropping an imagecropped_image = img[80:280, 150:330] # Display cropped imagecv2.imshow("cropped", cropped_image) # Save the cropped imagecv2.imwrite("CroppedImage.jpg", cropped_image) cv2.waitKey(0)cv2.destroyAllWindows() python3 cropped.py

resizeImg.py # let's start with the Imports import cv2import numpy as np # Read the image using imread functionimage = cv2.imread('Lenna.png')cv2.imshow('Original Image', image) # let's downscale the image using new width and heightdown_width = 300down_height = 200down_points = (down_width, down_height)resized_down = cv2.resize(image, down_points, interpolation= cv2.INTER_LINEAR) # let's upscal..

python -VPython 3.10.12사용함 readWrite.py# import the cv2 libraryimport cv2 # The function cv2.imread() is used to read an image.img_grayscale = cv2.imread('test.jpg',0) # The function cv2.imshow() is used to display an image in a window.cv2.imshow('graycsale image',img_grayscale) # waitKey() waits for a key press to close the window and 0 specifies indefinite loopcv2.waitKey(0) # cv2.destroyAllWi..

CMakeLists.txtcmake_minimum_required(VERSION 3.10)project(OpenCVExample)find_package(OpenCV REQUIRED)include_directories(${OpenCV_INCLUDE_DIRS}) add_executable(main main.cpp)target_link_libraries(main ${OpenCV_LIBS}) main.cpp#include #include int main() { // read image cv::Mat image = cv::imread("Lenna.png"); // image w,h,channel std::cout  make 하고 실행하면이렇게 이미지가 잘림.

CMakeLists.txtcmake_minimum_required(VERSION 3.10)project(OpenCVExample)find_package(OpenCV REQUIRED)include_directories(${OpenCV_INCLUDE_DIRS}) add_executable(main main.cpp)target_link_libraries(main ${OpenCV_LIBS})~  main.cpp#include #include int main() { // read image cv::Mat image = cv::imread("Lenna.png"); cv::imshow("Original Image", image); // let's downscale the image using ..

1.CMakeLists만들기본인이 테스트 하고 싶은 경로로 가서vim CMakeLists.txt 하기 CMakeLists.txtcmake_minimum_required(VERSION 3.10)project(OpenCVExample)find_package(OpenCV REQUIRED)include_directories(${OpenCV_INCLUDE_DIRS})add_executable(main main.cpp)target_link_libraries(main ${OpenCV_LIBS}) 2.main.cpp만들기main.cpp#include #include int main() { // 이미지 읽기 cv::Mat img_color = cv::imread("Lenna.png", cv::IMREAD_COLOR); ..

1.시스템 패키지 목록 업데이트sudo apt update 2.OpenCV 라이브러리 설치sudo apt install libopencv-devOpenCV와 관련된 여러 패키지를 설치할 수 있다. 3.추가 패키지 설치 sudo apt install \ libopencv-core-dev \ libopencv-imgproc-dev \ libopencv-highgui-dev \ libopencv-video-dev \ libopencv-features2d-dev \ libopencv-calib3d-dev \ libopencv-objdetect-dev \ libopencv-photo-dev \ libopencv-videoio-dev 4.OpenCV 설치 확인Open..