Recently I am working on a QT project, which requires identifying keyboard input keys to generate shortcut keys. There is a class QKeySequenceEdit in QT. Using this, you can directly obtain keyboard input. However, if you want to filter out the keys you do not want to recognize, you must rewrite it. ThekeyPressEvent(QKeyEvent *e) function. […]
Tag: shift
Dot matrix screen display based on 51·16*16 dot matrix simulation experiment (static display, left shift display)
If you want to know more details, you can jump to: Based on 51 dot matrix screen display 8*8 dot matrix simulation experiment: 51-based dot matrix screen display 8*8 dot matrix simulation experiment-CSDN Blog Learn about a module Display principle of 16*16 dot matrix Although the above 8*8 dot matrix display has been completed, the […]
Exquisite explanation of OpenCV algorithm: based on Python and C++, geometric transformation-affine transformation-shift
Exquisite explanation of OpenCV algorithm: based on Python and C++, geometric transformation-affine transformation-shift Opencv_C_algorithm/shift/shift_.py at master · ZouJiu1/Opencv_C_algorithm (github.com)?github.com/ZouJiu1/Opencv_C_algorithm/blob/master/shift/shift_.py “OpenCV Algorithm Exquisite Analysis: Based on Python and C++” (edited by Zhang Ping) [Introduction_Book Review_Online Reading] – Dangdang Books (dangdang.com)?product.dangdang.com/25182999.html I will buy the paper version of this book in the future. Operations such as zooming […]
[HDLBits question] Sequential Logic — Shift Registers
2.3 Shift Registers shift register 2.3.1 4-bit shift register [Shift4] Problem description Build a 4-bit shift register (shift right) with synchronous reset, synchronous read and enable. areset : The shift register is reset to 0. load: Load the shift register with data[3:0] instead of shifting. ena : Shift to the right (q[3] becomes 0, q[0] […]
Similarities and differences between kuberntes ingress and openshift router
The article is reproduced from: https://blog.51cto.com/mahmut/7932433 Goal: Explore the similarities and differences between Kuberntes Ingress and Openshift Router Prerequisite: Have an understanding of Kubernetes and Openshift Background: Both Kubernetes Ingress and Openshift Route can expose services (Services) in the form of routes to facilitate external access to cluster internal resources and also provide load balancing. […]
2023-Autumn Timing-32-bit shift register-difficulty upgraded version BUAA power collection
1. Title description: This topic will learn the design of commonly used shift registers and implement the barrel shifter needed in shift instructions. Background: The shift register moves the data stored in it by one bit in a certain direction according to its control signal at the trigger edge of the clock. Shift registers are […]
[C++] Operator overloading case – String class ⑤ (overloading greater than ＞ operator | overloading less than ＜ operator | overloading right shift >> operator – overloading using global functions | code example)
Article directory 1. Overloading the greater than sign/less than sign operator – overloading using member functions 1. Overloading the greater than > operator 2. Overloading the less than < operator 2. Overloading the right shift >> operator – using global function overloading 3. Complete code example 1. String.h class header file 2. String.cpp class implementation […]
[C++] Operator overloading case – String class ③ (Overloading left shift ＜＜ operator | Tips for using custom classes | Direct access to private pointer members of the class | Allocate specified size memory for the pointer and initialize it to 0)
Article directory 1. Overloading the left shift
Hardware circuit multiplier design (4bit, 8bit multiplier, use shift addition to implement 4bit multiplier, and use 4bit multiplier to implement 8bit multiplier, verilog)
1. Basic ideas of multiplier design The key idea in this article is to use shift addition to implement multiplication. Essentially, it decomposes multiplication into several addition operations, and implements multiplication through several additions. Taking 4-bit multiplication as an example, it can essentially be decomposed into three addition implementations. The following example: Calculate decimal 10*6 […]
OpenCV—0013 (Video Analysis-Difference Method, Mean Shift Method, Optical Flow Method)
Video Analysis Video is a collection of images containing a large number of temporal relationships. Video processing can be combined with temporal relationships. Digging into deeper information, such as determining whether the video camera is moving or whether it exists in the scene Moving objects Determine the three-dimensional information of objects in the scene This […]