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Python OpenCV a way to rotate an image without cropping the picture

Recently, we need to use the image processing related operation in the depth study, in the Niang find the picture rotation method is stereotyped, rotate the picture is not the original size, very distressed, so Google to the site of crooked nuts

Windows Explorer Web View interface

When we use Windows Explorer (Exporlor), it is easier to see the left view to display information about the selected target. This example is a simple example of a Web view interface, but the left side is not a Web view, but a FormView. The

OpenGL programming based on MFC part Selection

Selection Selection is a powerful feature of OpenGL this allows you click at some position of the OpenGL window using the mouse and Determine which of your objects lie beneath it. The act of selecting a specific object is called picking. With

The best algorithm for determining whether the point is within a triangle __graphice

For example, three vertices a (Xa,za) B (XB,ZB) C (XC,ZC) are knownand O-point (Xo,zo)Determine if o point is in triangular ABC in the X-Z planeI think of a lot of ways, but I'm looking for the quickest and the simplest. 1. Area discrimination

MFC controls Adaptive window size, varies with window size

As a beginner of MFC, inevitably encounter such a problem, the window can be changed size, and the size of the control is also changed, then how to do it. 1. The properties of the corresponding window maximize box and minimize box are set to true,

SVG syntax Tag Properties

1. SVG element module Animation.module Animate Animatecolor animatetransform animatemotion set MPath Trim module Clippath Color Profile Module

Using MFC to customize and extend the browser (JavaScript interacts with C + +)

Original address: http://www.vckbase.com/document/viewdoc/?id=1486customization and extension of the browserLi HanpengDownload source codeThis article is divided into the following chapters: Objective Using the browser in MFC How to

Opencv+python realization of video real-time centroid reading

The following features are implemented with Opencv+python:1) Get real-time video, decompose frame frequency;2) The video to do two value processing;3) The Video filter processing (to remove noise, to obtain the exact number of profiles);4) identify

Python Learning nine: list-generated

February 12, 2015 15:38:52Hits: 32624List generation is a very powerful expression built into Python that generates a list.If you want to generate a list [1, 2, 3, 4, 5, 6, 7, 8, 9] You can use range (1, 10):[Python]View PlainCopy >>>

Simulated annealing algorithm

This is the most God-made mess I've ever seen!Open the pit first.AC POJ 24201#include 2#include 3#include 4 5#include 6#include 7#include 8#include 9 Ten#include One#include A#include -#include Set> -#include the#include - -typedef

Hungarian Naming Act

This method may have been heard by many people, including me, some people also try to use it, but still feel good, but now it seems that the idea is wrong. Explain it again. These symbols can be used at the same time, in order to first m_, (this tag

VC + + Implementation shows transparent 256 colors above the icon

In the course of learning Visual C + + programming, many friends may ask how Visual C + + ensures that more than 256-color icons are not distorted after loading. Although there are articles on how to achieve more than 256 colors, most of the methods

Insert a miniature animation into the VC application

This paper uses the CImageList class to save a number of pictures, using the draw function at a certain time interval to play out, forming a similar GIF animation effect. This method can play animation in window's client area, on the toolbar, on the

Positive expression matches an HTML tag's property value _ Regular expression

Regular expressions are necessary skills to do text parsing work. such as Web server log analysis, Web front-end development and so on. Many advanced text editors support a subset of regular expressions, and familiarity with regular expressions can

Python Builder & Iterator

List-GeneratedTo generate [1x1, 2x2, 3x3, ..., 10x10]>>> [x * x for x in range (1, 11)]The For loop can also be followed by an if judgment>>> [x * x for x in range (1, one) if x% 2 = = 0][4, 16, 36, 64, 100] You can also use the two-layer loop to

MFC program minimized to Pallet

1, in the resources of the icon to import a favorite icons, the ID named Idr_mainframe, the previous idr_mainframe icon removed;2, in their own dialog header file defined a variable notifyicondata m_nid, about the structure of the specific

MFC reads SHP files through the Mapwingis control

record the two days of hard work, just come to the company less than a week, these days have been looking at GIS-related things.First tune out the first android to call C + + code via JNIAnd then it took two days to do an MFC read SHP format file

Raphaeljs Introduction to Mastery (ii)

In this section we will describe the attributes and events of elements in Raphaeljs, as well as the code expansion of the preceding article. Adding attributes to an element in paper is using the Attr method, which can be added

_android of the radar scanning effect of Android animation

Let's look at the effect chart first, and have an overall impression Well, to make it easier to understand, here's what the animation sees in turn. Get ready Here it is decided to implement this simple animation control with canvas (canvas) and

Detailed Android Material design custom Animation writing _android

New Animation API that allows you to create touch feedback in UI controls, change view state, and toggle a series of custom animations for the activitySpecifically: Touch feedback Animation In response to view's touching events To hide and

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