OpenCV

OpenCV.js - detectMultiScale “This Exception cannot be caught”

由 冷暖自知 提交于 2020-12-12 09:21:51
问题 I'm trying to use facial recognition via OpenCV.js, however when I call on the detectMultiScale() method of the CascadeClassifier object I receive the error: Uncaught 6446128 - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch. The problem is I'm leveraging a hosted version of opencv.js directly from opencv.org - it's not a build version because I'm unable to build it myself, and therefore

Can't use OpenCV-Python in AWS Lambda

由 こ雲淡風輕ζ 提交于 2020-12-12 06:28:41
问题 I've been trying to get OpenCV into an S3 bucket and then assign it to a lambda layer. Theres very little about this online and what I have seen hasn't worked. I've managed to use docker with the amazon linux environment, and followed this tutorial. https://aws.amazon.com/premiumsupport/knowledge-center/lambda-layer-simulated-docker/ I've added setuptools, wheel and opencv-python==4.4.0.42 to the requirements.txt file. setuptools and wheel because of an earlier error where the recommendation

Can't use OpenCV-Python in AWS Lambda

由 心已入冬 提交于 2020-12-12 06:28:31
问题 I've been trying to get OpenCV into an S3 bucket and then assign it to a lambda layer. Theres very little about this online and what I have seen hasn't worked. I've managed to use docker with the amazon linux environment, and followed this tutorial. https://aws.amazon.com/premiumsupport/knowledge-center/lambda-layer-simulated-docker/ I've added setuptools, wheel and opencv-python==4.4.0.42 to the requirements.txt file. setuptools and wheel because of an earlier error where the recommendation

How to write on video with cv2 AND MTCNN? I'm facing problems with fourcc

由 安稳与你 提交于 2020-12-12 04:48:08
问题 I'm trying to write a script that anonymized faces on videos. here is my code (python): import cv2 from mtcnn.mtcnn import MTCNN ksize = (101, 101) def decode_fourcc(cc): return "".join([chr((int(cc) >> 8 * i) & 0xFF) for i in range(4)]) def find_face_MTCNN(color, result_list): for result in result_list: x, y, w, h = result['box'] roi = color[y:y+h, x:x+w] cv2.rectangle(color, (x, y), (x+w, y+h), (0, 155, 255), 5) detectedFace = cv2.GaussianBlur(roi, ksize, 0) color[y:y+h, x:x+w] =

How to write on video with cv2 AND MTCNN? I'm facing problems with fourcc

由 ＊爱你＆永不变心＊ 提交于 2020-12-12 04:47:21
问题 I'm trying to write a script that anonymized faces on videos. here is my code (python): import cv2 from mtcnn.mtcnn import MTCNN ksize = (101, 101) def decode_fourcc(cc): return "".join([chr((int(cc) >> 8 * i) & 0xFF) for i in range(4)]) def find_face_MTCNN(color, result_list): for result in result_list: x, y, w, h = result['box'] roi = color[y:y+h, x:x+w] cv2.rectangle(color, (x, y), (x+w, y+h), (0, 155, 255), 5) detectedFace = cv2.GaussianBlur(roi, ksize, 0) color[y:y+h, x:x+w] =

opencv简单实用（cv2）

由 有些话、适合烂在心里 提交于 2020-12-12 00:39:10
一、介绍 安装：pip install opencv-python OpenCV是一个基于BSD许可（开源）发行的跨平台计算机视觉库，可以运行在Linux、Windows、Android和Mac OS操作系统上。OpenCV于1999年由Intel建立，如今由Willow Garage提供支持。它轻量级而且高效——由一系列 C 函数和少量 C++ 类构成，同时提供了Python、Ruby、MATLAB等语言的接口，实现了图像处理和计算机视觉方面的很多通用算法。 二、画图测试 import cv2 img =cv2.imread( " 1.jpg " ) # 获取图片句柄 cv2.imshow( " image " ,img) # 打开图片，（不会等待，会直接关闭） cv2.waitKey(0) # 等待键盘输入,0代表任意键盘，（即输入任意键盘后，关闭图片） cv2.destroyAllWindows() # 关闭所有图片窗口，防止异常 # 画线 color=(255,0,0) # 颜色 cv2.line(img,(10,10),(100,100),color,3) # 画线，坐标（10,10）到（100,100）这2个点的直线 cv2.imshow( " image " ,img) cv2.waitKey(0) cv2.destroyAllWindows() color =

安装 OpenCV 时遇到 modulenotfounderror: no module named 'cv2'

由 六眼飞鱼酱① 提交于 2020-12-11 22:40:33
#ModuleNotFoundError: No module named ‘cv2’ 在安装 opencv 时会出现 ImportError: No module named cv2 的错误，找不到 cv2 的包。 这时候安装扩展包即可： pip install opencv-python 来源： oschina 链接： https://my.oschina.net/u/4518013/blog/4792463

How to get the background from multiple images by removing moving objects?

由 天大地大妈咪最大 提交于 2020-12-11 08:54:44
问题 I have taken multiple images of the same scene with a fixed camera which has moving objects in it. I don't understand how can I use these images in Python to retrieve the background image by removing all the moving objects. Any help would be appreciated. Thanks! Images have been attached below: In this case, I would expect the final image to be without any hands in it. image1: image2: image3: 回答1: Updated Answer I worked out how to do what I suggested below in Python - but there may be better

How do I save a cv2 processed image to django models?

由 ぃ、小莉子 提交于 2020-12-10 12:15:49
问题 I use opencv to crop images and I'd like to save them to the models, I load the file directly to computeLogoFromMemoryFILE where it is processed, from there how can I save the image to TempImage model? views.py: form = myForm(request.FILES) if form.is_valid(): cropped_image = computeLogoFromMemoryFILE(request.FILES.get('logo')) # ... temp_image = TempImage.objects.create(image=?) cv2: # (np == numpy) def computeLogoFromMemoryFILE(logo): logo.seek(0) image = cv2.imdecode(np.fromstring(logo

How do I save a cv2 processed image to django models?

由 こ雲淡風輕ζ 提交于 2020-12-10 12:14:04
问题 I use opencv to crop images and I'd like to save them to the models, I load the file directly to computeLogoFromMemoryFILE where it is processed, from there how can I save the image to TempImage model? views.py: form = myForm(request.FILES) if form.is_valid(): cropped_image = computeLogoFromMemoryFILE(request.FILES.get('logo')) # ... temp_image = TempImage.objects.create(image=?) cv2: # (np == numpy) def computeLogoFromMemoryFILE(logo): logo.seek(0) image = cv2.imdecode(np.fromstring(logo
订阅 OpenCV