opencv-python

Python - Pytesseract extracts incorrect text from image

半城伤御伤魂 提交于 2019-12-11 12:28:55
问题 I used the below code in Python to extract text from image, import cv2 import numpy as np import pytesseract from PIL import Image # Path of working folder on Disk src_path = "<dir path>" def get_string(img_path): # Read image with opencv img = cv2.imread(img_path) # Convert to gray img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) # Apply dilation and erosion to remove some noise kernel = np.ones((1, 1), np.uint8) img = cv2.dilate(img, kernel, iterations=1) img = cv2.erode(img, kernel, iterations

Unable to run tune_blockmatcher and image_to_pointcloud programs

允我心安 提交于 2019-12-11 04:15:26
问题 I am able to capture images on webcams and calibrate them well using StereoVision library from erget. But, while trying for execution of tune_blockmatcher and images_to_pointcloud, i found below errors as StereoBM and StereoSGBM classes are unable to import. >import cv2 >from stereovision.blockmatchers import StereoBM, StereoSGBM Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python27\lib\site-packages\stereovision\blockmatchers.py", line 111, in <module>

How to decrease the autocompletion delay in visual studio code for python imported packages?

有些话、适合烂在心里 提交于 2019-12-08 04:24:23
问题 I am using python 3.7.3 and visual studio code 1.33.1. When I import any library like cv2 or numpy and try to use it, the autocompletion takes 4-5 seconds to identify the functions. When I use the default functions like print(),slice(), etc., they autocomplete within 1 second. I tried using the following config "python.linting.pylintArgs": ["--extension-pkg-whitelist=cv2"], "python.autoComplete.extraPaths": [ "C:\Users\Pratik\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7

How to load and convert .mat file into numpy 2D array?

时光毁灭记忆、已成空白 提交于 2019-12-06 10:50:41
I have a data in mat file (observations and features) and i want to load it into numpy 2D array. I dont want to convert it into csv first and then load csv into numpy. Use scipy's loadmat (API-docs) . The docs should be sufficient to get you going, but make sure to read the notes. There is also the io-tutorial with some examples. 来源: https://stackoverflow.com/questions/43952620/how-to-load-and-convert-mat-file-into-numpy-2d-array