dilate opencv python

I. Step configurationInstall the following tools separately1, python2.7.x2, NumPy and Scipy3, Matplotlib4, download OpenCV after decompression, extraction path "\opencv\build\python\2.7", Folder x64 (64-bit) or x86 (32-bit) in the " Cv2.pyd "Put it under" Python27\lib ". 5, MathotasSecond, install Python (x, y)The inst

I use the Pathon is 3.5, the network says OPENCV can only use 2.7 to install is wrong The Python compiler is the pycharm,pycharm advantage of being able to install a Third-party library through the PIP itself The installation OPENCV process is described below 1. First download and install Python and configure enviro

Using OpenCV to rotate images in Python, pythonopencv OpenCV is the most widely used open-source visual library. It allows you to use a small amount of code to detect faces in images or videos. Here are some Internet tutorials to illustrate how to use affine transform in OpenCV) rotating images-they do not solve this p

This article describes how to use OpenCV to rotate images in Python. the code and core algorithms are very simple, for more information, see OpenCV, the most widely used open-source Visual Library. It allows you to use a small amount of code to detect faces in images or videos. Here are some internet tutorials to illustrate how to use affine transform in

Python + Opencv recognizes two similar images, After reading articles related to image recognition in python on the internet, I really feel that python is too powerful. So I will summarize these articles and build my own knowledge system.Of course, as a branch of computer science, the topic of image recognition cannot

# 2018-06-03 #1. python Download: https://www.python.org/downloads/Select the appropriate version of Python for the corresponding platform to install.2. python version OpenCV installation:If the Python environment is already configured globally on your computer, you can inst

In general, Python does not include the OpenCV module, need to install or configure their own, installation is relatively simple I will not say, say the download module, hands-on configuration (because the LZ is Winpython, green version of non-installation, although the integration of a lot of modules, but Wood has OPENCV, Can not be installed directly, can only

Recently the teacher left a few homework, although with OPENCV very simple word on the out, but also no use Python wrote. In the official document tutorial in the threshold, see can create two sliders to select type and value, decided to use Python to implementnote the global variables in Python, declared with the glob

Python OpenCV learning notes histogram equalization, pythonopencv This article introduces the histogram equalization of python OpenCV learning notes. The details are as follows: Documents-https://docs.opencv.org/3.4.0/d5/daf/tutorial_py_histogram_equalization.html Considering an image, its pixel value is limited to a s

Happy Shrimphttp://blog.csdn.net/lights_joy/(QQ group: Visual embedlinux Tools 375515651)Welcome reprint, but please keep the author informationwhen the image processing development environment was previously constructed, an installation package that was compiled by someone else wouldOpenCVinstalled in thec:\python27\lib\site-packagesdirectory, but thisOpenCVno symbol table, cannot beC + +debugging of the code. We useVScompiled byOpenCVreplace it. first modify

Python uses opencv to cut images in batches, In the previous article, we introducedImplementation of image processing and Feature Extraction in pythonHere, let's take a look at Python's batch cropping of images through OpenCV, as detailed below. For image processing, you need to modify the image size in large batches for training samples. Therefore, this program

Opencv_python useFirst, the GUI features in OpenCV:1. Read in the Image:The Cv2.imread () function reads into the image. The parameters are:(1) The path to this picture.(2) Tell the function how to read the image:Cv2. Imread_color: Reads a pair of color images. However, the transparency of the image is ignored and can be expressed in 1.Cv2. Imread_grayscale: Reads the image in grayscale mode, which can be expressed in 0.Cv2. Imread_unchanged: Reading

Unlike C++-OPENCV, Python-opencv doesn ' t has a function like convertTo. But we can modify image data types using Numpy.For example, we have a image with image depth Cv2. CV_64FC1 and we want to the change of the depth to CV2. Cv_8uc1Import NumPy as Npmax_pixel=np.amax (original_img) img=original_img/max_pixel*255img=img.astype (np.uint8)Since an image is proces

This article is intended for children's shoes that want to use Python 3 under window, install OpenCV for problematic referenceFirst, you want to make sure that your Python version is 3.x, enter Python in the Command line windowI'm using Python 3.6.Second, you need to downloa

OpenCV do not need to say more, first recommend a force tutorial:Https://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_tutorials.htmlThe example of tutorial is realized once, can have a basic understanding of OPENCV, but to do some practical things, still need to study deeply.Today this article is ver

Function:Create two sliders to control the size of the Gaussian kernel and σ The size of this program is changed on the threshold partition of the program. The threshold splitting program is in thisNote: because σ=0 , OpenCV calculates the window size based on the σ , so, sliding from 0 σ Slider, there is a clear and blurred first edgePYTHON+

Environment:-Ubuntu 16.04-OpenCV + contrib 3.2.0 (download link in this article)-Python 3.5Configurations that are based on other environments should be similar.There's no time to explain, just get in the car.Update under System: sudo apt-get update sudo apt-get upgrade Installation dependencies: sudo apt-get install build-essential cmake pkg-config sudo apt-get install Libjpe

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coefficients. PS: Sadly, if numpy the input data as a vector, rather than a matrix, it explains that the multiplication operator is not a matrix multiplication, so we have to explicitly write to Np.dot. PS: We use Lanczos interpolation, which is generally beneficial to the expansion of the scale is very small disadvantage; Considering the application, we should adapt this interpolation. PS: The interaction with Python is improved by the CV2 module

Python OpenCV histogram calculation and display method example, pythonopencv This article introduces how to use OpenCV Python to calculate histograms, and briefly introduces how to use NumPy and Matplotlib to calculate and draw histograms. The background knowledge and usage of the histogram are omitted. Here we will in