Article directory Opencv image scaling (enlargement, reduction), flipping, rotating 1. Why interpolation is needed during image scaling and rotation: 2. Common interpolation algorithms include: 3. Image scaling, flipping, and rotating: (1) Image scaling cv2::resize(), a function used to change the size of an image. It can be used for image enlargement and reduction operations: Function […]
Tag: flip
140 lines of Python code to implement Flippy Bird
140 lines of code to implement Flippy Bird By the way, I can’t remember the Chinese name of this game. So let’s forget it. Chapter 2 of the mini-game series is implemented in 140 lines. It is still a simple mini-game. Compared with the Sudoku game, it is displayed on the game interface. It is […]
Message queue implements AB process dialogue; shared memory and semaphore set complete multi-process string flipping and output
Message queue implements AB process dialogue Requirements Process A first sends a sentence to process B, and process B prints it after receiving it. Process B then replies a sentence to process A, and process A prints it after receiving it. Repeat step 1.2 Shared memory and semaphore set complete multi-process string flipping and output […]
Use multi-threads to complete image copying, the main thread copies the first half, and the sub-threads copy the second half; multi-threads flip and output strings
1. Two demos 1.1 Multi-threaded image copying Use multi-threading to complete image copying, the main thread copies the first half, and the sub-thread copies the second half This idea has been relatively complete in the previous multi-process replication, so I won’t introduce the specific ideas. It’s almost the same idea. 1.2 Multi-threaded flipping and outputting […]
Binary tree: Binary tree level-order traversal, 102. Level-order traversal of binary tree, 226. Flip binary tree, 101. Symmetric binary tree
Tips: Live hard and have a happy day Article directory Binary tree level order traversal Ideas 102.Level-order traversal of binary tree Problem-solving ideas Problems encountered Code Summary of the question 226. Flip a binary tree Problem-solving ideas Problems encountered Code Summary of the question 101. Symmetric binary tree Problem-solving ideas Problems encountered Code Summary of […]
Level-order traversal 226. Flip binary tree (master recursion first) 101. Symmetric binary tree (master recursion first)
Level-order traversal 226. Flip binary tree (master recursion first) 101. Symmetric binary tree (master recursion first) 102. Level-order traversal of binary trees Likou question link(opens new window) Given a binary tree, please return the node values obtained by layer-order traversal. (i.e. visit all nodes layer by layer, from left to right). Ideas Iterative method Level-order […]
PyFlipper: A powerful wrapper for the Flipper Zero command line interface
About PyFlipper PyFlipper is a powerful Flipper Zero command line interface wrapper. This tool is developed based on pure Python, so it has good cross-platform features. Introduction to Flipper Zero Flipper Zero is a Tamagotchi-like gadget, Flipper Zero is open source and customizable, and you can plug in other hardware for even more help. You […]
Bit phase flipping based on Mindquantum
Bit phase flipping based on Mindquantum In quantum computing tasks, we sometimes need to flip the phase of one or some components of the quantum state, such as in the Grover algorithm, constructing the Oracle operator u ω U_\omega Uω?, we need to flip the target quantum state ∣ ω ? |\omega\rangle ∣ω? so that […]
10—-Indefinite long integer splitting, flipping
I have encountered the splitting of numbers several times, so I decided to make a summary. 1. Small test: The title is as follows: Given an integer N, please invert the numbers in each digit of the number to get a new number. As the name suggests, the splitting of numbers is to give you […]
Android displays animations in widgets – ViewFlipper nested ImageView
Preliminary preparation: Add widget Android Studio => New => AppWidget Configuration details: widget_info.xml <?xml version=”1.0″ encoding=”utf-8″?> <appwidget-provider xmlns:android=”http://schemas.android.com/apk/res/android” android:description=”@string/app_widget_description” android:initialKeyguardLayout=”@layout/quote_widget_small” android:initialLayout=”@layout/quote_widget_small”// initialized layout layout android:minWidth=”110dp”// width corresponds to grid 2 android:minHeight=”40dp”//The height corresponds to grid 1 android:previewImage=”@drawable/example_appwidget_preview”//Preview appearance android:previewLayout=”@layout/quote_widget_small”//Preview layout is only available for API level 31 and higher android:resizeMode=”horizontal|vertical”//Indicates whether and how to adjust […]