defreadImg(im_fn):im=cv2.imread(im_fn)ifim is None:print('{} cv2.imread failed'.format(im_fn))tmp=imageio.mimread(im_fn)iftmp is not None:imt=np.array(tmp)imt=imt[0]im=imt[:,:,0:3]returnim 代码语言:javascript 代码运行次数:0 运行 AI代码解释 help(imageio.mimread) 关于cv2....
success,img=camera.read()# 从摄像头读取照片 W_size=0.1*camera.get(3)H_size=0.1*camera.get(4)system_state_lock=0# 标志系统状态的量0表示无子线程在运行1表示正在刷脸2表示正在录入新面孔。 # 相当于mutex锁,用于线程同步''' === 以上是初始化 ===...
[0, maxHeight- 1]], dtype ="float32")#计算变换矩阵M =cv2.getPerspectiveTransform(rect, dst) warped=cv2.warpPerspective(image, M, (maxWidth, maxHeight))#返回变换后结果returnwarpeddefresize(image, width=None, height=None, inter=cv2.INTER_AREA): dim=None (h, w)= image.shape[:2]ifwidt...
__target_color = ('red','green','blue')lab_data = yaml_handle.get_yaml_data(yaml_handle.lab_file_path)# 找出面积最大的轮廓# 参数为要比较的轮廓的列表defgetAreaMaxContour(contours):contour_area_temp =0contour_area_max =0area_max_contour ...
# Apply OCR on the cropped image text = pytesseract.image_to_string(cropped) # Appending the text into file file.write(text) file.write("\n") # Close the file file.close python识别图片文字输出结果: 最终文本文件: 检测到的文本块:
cv2.imshow('test', imgPutText)# 显示叠加图像cv2.waitKey()# 等待按键命令 效果展示: 5. 图片上添加倾斜透明文字水印 方法1: importnumpyasnpfromPILimportImage, ImageDraw, ImageFontimportcv2# 读取彩色图像(BGR)img = cv2.imread('test.png') ...
text = pytesseract.image_to_string(Image.open(filename)) print(text) os.remove(filename) cv2.imshow("Output", gray) cv2.waitKey(0) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
fs << "strings" << "["; // text - string sequence fs << "image1.jpg" << "Awesomeness" << "../data/baboon.jpg"; fs << "]"; // close sequence 对于映射,是相同的,但是现在我们使用“{”和“}”分隔符: fs << "Mapping"; // text - mapping fs << "{" << "One" << 1;...
retval, image = cv2.VideoCapture.retrieve([, image[, flag]]) 解码并返回抓取的视频帧 retval = cv2.VideoCapture.grab() 从视频文件或相机中抓取下一帧。true为抓取成功。该函数主要用于多摄像头时。 cv2.VideoCapture.release() 关闭视频文件或相机设备。 cap.get(propId):访问视频的某些功能,其中propId是一...
This article will cover everything you need to get started with optical character recognition, also known as OCR. You will learn how to extract text from images and visualize the extracted text on an image in OpenCV. Use OCR With the EasyOCR Library to Extract Text From an Image in OpenCV...