[actual combat] license plate detection and recognition based on SVM of OpenCv

This issue continues to share the SVM practice project: license plate detection and recognition, and also introduces some dry goods In retrospect, Last issue introduced the SVM model training of OpenCv , this issue will continue to introduce the recognition process. This flow chart is still classic and intuitive. Let's share what we said ...

Posted by Cornelia on Thu, 07 May 2020 21:11:53 -0700

Data analysis and visualization of scientific computing

1, The extended modules for data analysis, scientific computing and visualization are mainly: numpy, scipy, pandas, symphony, matplotlib, Traits, TraitsUI, Chaco, TVTK, Mayavi, VPython, OpenCV. 1.numpy module: scientific computing package, which supports N-dimensional array operation, large matrix processing, mature broadcast function library, ...

Posted by canobi on Tue, 05 May 2020 18:03:23 -0700

Non rigid face recognition practical

Object oriented design Like face detection and face recognition, face tracking consists of two parts: data and algorithm. The algorithm trains the model by storing (i.e. offline) data in advance, and then performs some operations on the new (i.e. online) data. Therefore, object-oriented design is a good choice. In opencv 2.x version, it is conv ...

Posted by intodesi on Mon, 04 May 2020 06:40:03 -0700

Android OpenCV tutorial one environment configuration

At the beginning of the course, the environment is arranged to run the program 1. Download resources https://github.com/opencv/opencv/releases/tag/3.2.0 Download opencv-3.2.0-android-sdk.zip and unzip 2. Build a new project, and then lead the package (1) First, create a new Project, and then import the extracted folder sdk/java as a module ...

Posted by mikesheridan5 on Sun, 03 May 2020 00:00:43 -0700

Pthon3+opencv+tkinter Development of a Simple Face Recognition Applet

A course in image processing at the school eventually requires submitting an image processing system. Just before I knew something about opencv, let's write a simple face recognition applet The effect diagram is as follows   Author IDE uses Pycharm, GUI programming uses built-in tkinter directly Environmental Science: python3.6 opencv4 ...

Posted by davanderbilt on Wed, 08 Apr 2020 20:44:31 -0700

Basic technology of machine vision implemented by python+opencv (edge extraction, image filtering, edge detection operator, projection, license plate character segmentation)

Catalog 1: Edge extraction 1. Threshold segmentation and color reversal of image 2. Edge extraction 2: Image filtering 1. Read the original drawing 2. Mean filtering 3. Median filtering 4. Gaussian filtering 5. Gaussian edge detection 3: Edge detection operator 1. Display the original drawing 2. Reverse the image 3. Image edge detec ...

Posted by kliopa10 on Sun, 29 Mar 2020 05:47:54 -0700

OpenCV-Python uses OCR handwriting data set to run SVM | fifty-six

target In this chapter, we will recognize the handwritten dataset again, but use SVM instead of kNN. Recognize handwritten numbers In kNN, we directly use pixel intensity as feature vector. This time we will use the directional gradient histogram (HOG) as the feature vector. Here, we use the second-order moment to correct the skew of the image ...

Posted by gurjit on Sun, 29 Mar 2020 00:05:02 -0700

Common use cases of Transformers Library

By hugging face Compile |VK Source: Github This chapter describes the most common use cases when using the Transformers library. The available models allow for many different configurations and are highly generic in use cases. This paper introduces the simplest method and shows the usage of tasks such as question answering, sequence classific ...

Posted by rel on Mon, 23 Mar 2020 23:54:18 -0700

Learning diary 20200315 - opencv tutorial (separating fusion color channel and scrolling axis to adjust image elements)

Article link: http://blog.csdn.net/poem_qianmo/article/details/21176257 5: Off color channel & multi-channel image mixing In order to better observe the characteristics of some image materials, sometimes it is necessary to display and adjust the components of three RGB color channels respectivel ...

Posted by Bullet on Sun, 15 Mar 2020 01:43:34 -0700

[artificial intelligence notes] section 9: compiling python OpenCV 4.2.0 under Windows, SIFT feature extraction, and perspective transformation to correct object direction

Compile and install OpenCV 0-1. Uninstall opencv and opencv_contrib installed by pip or conda before installation: pip uninstall opencv-contrib-python pip uninstall opencv-python 0-2.install NumPY in Python environment first pip install numpy 1. Download OpenCV source code: https://github.com/o ...

Posted by baitubai on Fri, 06 Mar 2020 21:34:14 -0800