参考自:https://www.pyimagesearch.com/2016/10/03/bubble-sheet-multiple-choice-scanner-and-test-grader-using-omr-python-and-opencv/ 一个简易的答题卡识别与分数判断小程序 修改说明: 1.不import imutils库,直接找mutils的源码,复制需要的函数的源码过来,分析算法原理 2.在jupter notebook中测试,可以方便...
The goal of this blog post is to build a bubble sheet scanner and test grader using Python and OpenCV.To accomplish this, our implementation will need to satisfy the following 7 steps:【分为7步,这个很专业的写法】Step #1: Detect the exam in an image. 从图像中读取到答题卡 Step #2: ...
(with a mark where the impact was detected) to a Chromecast-enabled screen near the shooter. This offers much better feedback and allows for easier scoring.The GitHub repository for the shot detector and target caster is here, and while it could be used on its own to detect any old ...
you can detect paper on desktop like this detecting previewing picture detecting picture take by camera Addition code is written in pure kotlin, hope this project will be helpful to you. previous version only work well on device of 1080 * 1920 resolution ratio, this bug fixed in this version...
Cheat sheet for OpenCV 4.x (Python). Contribute to a-anjos/python-opencv development by creating an account on GitHub.
To do so, they made a web application using node.js and OpenCV to extract outlines for tools (or anything else) when photographed on a blank sheet of paper. The OpenCV stack assumes that the object to be profiled will be placed on a uniformly colored paper with all parts of its ...
detect( image=frame, score_threshold=0.6, iou_threshold=0.4, ) elapsed_time = time.time() - start_time # デバッグ描画 for box, score, class_id in zip(boxes, scores, class_ids): cv2.rectangle(debug_image, box, get_id_color(class_id), 2) text = 'Elapsed time:' + '%.0f' %...
createElement('canvas'); export class OpenCVDocumentDetectHandler extends DDV.DocumentDetect { private documentScanner:DocumentScanner; constructor(documentScanner:DocumentScanner){ super(); this.documentScanner = documentScanner; } // Rewrite the detect method async detect(image:any, detectConfig:any) {...
Then we will create an Attendance project that will use webcam to detect faces and record the attendance live in an excel sheet. Angle Finder Watch Now Learn how to create an angle finder project. We will first define two lines using mouse clicks and then find the angle between theses ...
Keyboard keys can be used, for example, to detect the page-up and page-down keys for a PDF viewer. To use this feature, there's a boolean setting in the FlexForm call return_keyboard_events that is set to True in order to get keys returned along with buttons. Keys and scroll-wheel ...