汉字点阵与OLED屏显

最新推荐文章于 2025-07-26 16:19:40 发布

Palebluerr

最新推荐文章于 2025-07-26 16:19:40 发布

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文章标签：单片机嵌入式硬件

本文链接：https://blog.youkuaiyun.com/kennyS5477/article/details/134493537

1. 串口传输文件的练习

接线

发送文件

保存文件

2. 学习理解汉字的机内码、区位码编码规则和字形数据存储格式。

2.1ubuntu新建文件夹用来存放代码、图片、24点阵.hz文件，ASCII码.zf文件

2.2创建写入文件

vim test3.cpp

2.3代码

#include<iostream>

#include<opencv/cv.h>

#include"opencv2/opencv.hpp"

#include<opencv/cxcore.h>

#include<opencv/highgui.h>

#include<math.h>

using namespace cv;

using namespace std;

void paint_chinese(Mat& image,int x_offset,int y_offset,unsigned long offset);

void paint_ascii(Mat& image,int x_offset,int y_offset,unsigned long offset);

void put_text_to_image(int x_offset,int y_offset,String image_path,char* logo_path);

int main(){

    String image_path="/home/x-huxi/myhomework/chinesetest/yousee.png";

    char* logo_path=(char*)"/home/x-huxi/myhomework/chinesetest/logo.txt";

    put_text_to_image(20,300,image_path,logo_path);

    return 0;

}



void paint_ascii(Mat& image,int x_offset,int y_offset,unsigned long offset){

    //绘制的起点坐标

	Point p;

	p.x = x_offset;

	p.y = y_offset;

	 //存放ascii字膜

	char buff[16];           

	//打开ascii字库文件

	FILE *ASCII;

	if ((ASCII = fopen("/home/x-huxi/myhomework/chinesetest/Asci0816.zf", "rb")) == NULL){

		printf("Can't open ascii.zf,Please check the path!");

		//getch();

		exit(0);

	}

	fseek(ASCII, offset, SEEK_SET);

	fread(buff, 16, 1, ASCII);

	int i, j;

	Point p1 = p;

	for (i = 0; i<16; i++)                  //十六个char

	{

		p.x = x_offset;

		for (j = 0; j < 8; j++)              //一个char八个bit

		{

			p1 = p;

			if (buff[i] & (0x80 >> j))    /*测试当前位是否为1*/

			{


				circle(image, p1, 0, Scalar(0, 0, 255), -1);

				p1.x++;

				circle(image, p1, 0, Scalar(0, 0, 255), -1);

				p1.y++;