// ConsoleApplication1.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//#include <iostream>
#include<string>
#include <atlimage.h>bool ConvertJpgTo16BitBmp565(const char* input_path, const char* output_path) {CImage srcImage, dstImage;// 1. 加载源图像srcImage.Load(input_path);int width = srcImage.GetWidth();int height = srcImage.GetHeight();int srcBpp = srcImage.GetBPP();int srcPitch = srcImage.GetPitch();BYTE* srcBits = static_cast<BYTE*>(srcImage.GetBits());// 2. 创建目标图像（负高度表示自上而下存储）DWORD masks[] = { 0xF800, 0x07E0, 0x001F };dstImage.CreateEx(width, height, 16, BI_BITFIELDS, masks);// 3. 获取目标图像参数（实际步长由API返回）int dstPitch = dstImage.GetPitch();BYTE* dstBits = static_cast<BYTE*>(dstImage.GetBits());// 5. 处理像素数据（无需反转行顺序）for (int y = 0; y < height; ++y) {BYTE* srcRow = srcBits + y * srcPitch;BYTE* dstRow = dstBits + y * dstPitch;for (int x = 0; x < width; ++x) {BYTE r, g, b;// 解析源像素颜色if (srcBpp == 24) { // 24位BGRBYTE* p = srcRow + x * 3;b = p[0];g = p[1];r = p[2];}else if (srcBpp == 32) { // 32位BGRXBYTE* p = srcRow + x * 4;b = p[0];g = p[1];r = p[2];}else {return false;}// 转换为RGB565WORD rgb565 = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);// 安全写入目标像素dstRow[x * 2] = static_cast<BYTE>(rgb565 & 0xFF); // 低位字节dstRow[x * 2 + 1] = static_cast<BYTE>((rgb565 >> 8)); // 高位字节}}dstImage.Save(output_path, Gdiplus::ImageFormatBMP);return true;
}
int main()
{if (__argc < 2)return 0;for (int i = 1; i < __argc; i++){std::string h = __argv[i];if (strcmp(h.substr(h.length() - 3).c_str(), "jpg"))continue;h=h.substr(0, h.length() - 3);h += "bmp";printf(h.c_str());ConvertJpgTo16BitBmp565(__argv[i], h.c_str());}return 0;
}
特殊情况使用这个，这个的效果是将图片的前8位和后8位进行对调
#include <iostream>
#include<string>
#include <atlimage.h>bool ConvertJpgTo16BitBmp565(const char* input_path, const char* output_path) {CImage srcImage, dstImage;// 1. 加载源图像srcImage.Load(input_path);int width = srcImage.GetWidth();int height = srcImage.GetHeight();int srcBpp = srcImage.GetBPP();int srcPitch = srcImage.GetPitch();BYTE* srcBits = static_cast<BYTE*>(srcImage.GetBits());// 2. 创建目标图像（负高度表示自上而下存储）DWORD masks[] = { 0xF800, 0x07E0, 0x001F };dstImage.CreateEx(width, height, 16, BI_BITFIELDS, masks);// 3. 获取目标图像参数（实际步长由API返回）int dstPitch = dstImage.GetPitch();BYTE* dstBits = static_cast<BYTE*>(dstImage.GetBits());// 5. 处理像素数据（无需反转行顺序）for (int y = 0; y < height; ++y) {BYTE* srcRow = srcBits + y * srcPitch;BYTE* dstRow = dstBits + y * dstPitch;for (int x = 0; x < width; ++x) {BYTE r, g, b;// 解析源像素颜色if (srcBpp == 24) { // 24位BGRBYTE* p = srcRow + x * 3;b = p[0];g = p[1];r = p[2];}else if (srcBpp == 32) { // 32位BGRXBYTE* p = srcRow + x * 4;b = p[0];g = p[1];r = p[2];}else {return false;}// 转换为RGB565WORD rgb565 = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);// 安全写入目标像素dstRow[x * 2] = static_cast<BYTE>((rgb565 >> 8)); // 低位字节dstRow[x * 2 + 1] = static_cast<BYTE>(rgb565 & 0xFF); // 高位字节}}dstImage.Save(output_path, Gdiplus::ImageFormatBMP);return true;
}
int main()
{if (__argc < 2)return 0;for (int i = 1; i < __argc; i++){std::string h = __argv[i];if (strcmp(h.substr(h.length() - 3).c_str(), "jpg"))continue;h=h.substr(0, h.length() - 3);h += "bmp";printf(h.c_str());ConvertJpgTo16BitBmp565(__argv[i], h.c_str());}return 0;
}
