png和bmp图片像素读取（linux）
来源：互联网 发布：成都二手房增值税算法 编辑：程序博客网 时间：2024/05/05 02:19
查找当前目录下的png和bmp图片，将其像素点读取出来压缩进theme.bin中，并将图片的其他信息如宽高压缩前后大小和在theme.bin中的偏移位置保存在bmpaddr.h中，方便在其他代码中读取图片像素信息。
main.c
#include <stdio.h>#include <string.h>#include <dirent.h>#include <stdlib.h>#include <unistd.h>#include <zlib.h>#include <png.h>#include <setjmp.h>#include "Userdefine.h"#include "bmp.h"#define MAX_IMAGE_FILE_NUM (512)#define MAX_NAME_LEN (128)typedef struct{ char acName[MAX_NAME_LEN]; char acBaseName[MAX_NAME_LEN];}IMAGE_NAME;typedef struct{ IMAGE_NAME stImageName[MAX_IMAGE_FILE_NUM]; unsigned int uiTotalPNGFile; unsigned int uiTotalBMPFile;}IMAGE_FILE;#define FORMAT "#define %-60s"#define HEADER_MARO ("_BMPADDR_H_")#define HEADER_FILE ("bmpaddr.h")#define BIN_FILE ("theme.bin")#define DIR_PATH ("./")IMAGE_FILE stImageFile;FILE *pfHeaderFile = NULL;FILE *pfBinFile = NULL;static int iAddr = 0x0;const unsigned char ucPNGHeadData[] = {0x89, 0x50, 0x4e, 0x47, 0xd, 0xa, 0x1a, 0xa};#define BMP_INDEX(x) (MAX_IMAGE_FILE_NUM - x - 1)void HandleFileName(char *pucFileName, unsigned int uiFileLen){ unsigned int uiIndex = 0; char cTemp = 0; if(pucFileName == NULL || uiFileLen <= 0) { return; } for(uiIndex = 0; uiIndex < uiFileLen; uiIndex++) { cTemp = pucFileName[uiIndex]; if(cTemp >= 'a' && cTemp <= 'z') { cTemp -= 32; } else if(!((cTemp >= 'A' && cTemp <= 'Z') || (cTemp >= '0' && cTemp <= '9'))) { cTemp = '_'; } pucFileName[uiIndex] = cTemp; }}void FindAllImageFile(){ struct dirent *pstDirent = NULL; DIR *pstDir; IMAGE_NAME *pstTemp = NULL; BOOL bFound = FALSE; memset(&stImageFile, 0, sizeof(stImageFile)); pstDir = opendir(DIR_PATH); while(NULL != (pstDirent = readdir(pstDir))) { bFound = FALSE; if(8 == pstDirent->d_type) { if((stImageFile.uiTotalPNGFile + stImageFile.uiTotalBMPFile) < MAX_IMAGE_FILE_NUM) { if(strstr(pstDirent->d_name, ".png") || strstr(pstDirent->d_name, ".PNG")) { pstTemp = &(stImageFile.stImageName[stImageFile.uiTotalPNGFile]); stImageFile.uiTotalPNGFile++; bFound = TRUE; } else if(strstr(pstDirent->d_name, ".bmp") || strstr(pstDirent->d_name, ".BMP")) { pstTemp = &(stImageFile.stImageName[MAX_IMAGE_FILE_NUM - stImageFile.uiTotalBMPFile - 1]); stImageFile.uiTotalBMPFile++; bFound = TRUE; } if(bFound) { snprintf(pstTemp->acName, sizeof(pstTemp->acName), "%s", pstDirent->d_name); snprintf(pstTemp->acBaseName, sizeof(pstTemp->acBaseName), "%s", pstDirent->d_name); HandleFileName(pstTemp->acBaseName, strlen(pstTemp->acBaseName)); } } } } closedir(pstDir);}void SortImageFile(){ int iIndex = 0; int iTemp = 0; IMAGE_NAME stTemp; int iIndexTemp = 0; int iTempIndex = 0; for(iIndex = 0; iIndex < stImageFile.uiTotalPNGFile; iIndex++) { stTemp = stImageFile.stImageName[iIndex]; for(iTemp = iIndex + 1; iTemp < stImageFile.uiTotalPNGFile; iTemp++) { if(strcmp(stTemp.acBaseName, stImageFile.stImageName[iTemp].acBaseName) > 0) { stImageFile.stImageName[iIndex] = stImageFile.stImageName[iTemp]; stImageFile.stImageName[iTemp] = stTemp; stTemp = stImageFile.stImageName[iIndex]; } } } for(iIndex = 0; iIndex < stImageFile.uiTotalBMPFile; iIndex++) { iIndexTemp = BMP_INDEX(iIndex); stTemp = stImageFile.stImageName[iIndexTemp]; for(iTemp = iIndex + 1; iTemp < stImageFile.uiTotalBMPFile; iTemp++) { iTempIndex = BMP_INDEX(iTemp); if(strcmp(stTemp.acBaseName, stImageFile.stImageName[iTempIndex].acBaseName) > 0) { stImageFile.stImageName[iIndexTemp] = stImageFile.stImageName[iTempIndex]; stImageFile.stImageName[iTempIndex] = stTemp; stTemp = stImageFile.stImageName[iIndexTemp]; } } }}void FlipImage(unsigned char * ucImgBuff, int iWidth, int iHeight){ unsigned char *pucLineBuf = NULL; int iIndexY = 0; unsigned char *pucHead = NULL; unsigned char *pucTail = NULL; pucLineBuf = (unsigned char *)malloc(iWidth * 4); if(pucLineBuf == NULL) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); return; } for(iIndexY = 0; iIndexY < iHeight / 2; ++iIndexY) { pucHead = ucImgBuff + iIndexY * iWidth * 4; pucTail = ucImgBuff + (iHeight - iIndexY - 1) * iWidth * 4; memcpy(pucLineBuf, pucHead, iWidth * 4); memcpy(pucHead, pucTail, iWidth * 4); memcpy(pucTail, pucLineBuf, iWidth * 4); } free(pucLineBuf); pucLineBuf = NULL;}void WriteToFile(int iStartAddr, int iWidth, int iHeight, unsigned char *pucPicBuffer, char *acBaseName){ uLongf iDataLenBeforeCompress = iWidth * iHeight * 4; uLongf iDataLenAfterCompress = compressBound(iDataLenBeforeCompress); int iRet = 0; char acTempBuffer[1024]; unsigned char acName[128]; unsigned char *pucCompressData = NULL; do { pucCompressData = (unsigned char *)malloc(iDataLenAfterCompress); if(pucCompressData == NULL) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); break; } iRet = compress(pucCompressData, &iDataLenAfterCompress, pucPicBuffer, iDataLenBeforeCompress); if(Z_OK != iRet) { printf("===>[%s, %d]%d\n", __FUNCTION__, __LINE__, iRet); break; } if(pfHeaderFile) { int iTempOffset = (4 - (iDataLenAfterCompress % 4)); snprintf(acName, sizeof(acName), "%s", acBaseName); snprintf(acTempBuffer, sizeof(acTempBuffer), FORMAT" 0x%x\n", acName, iAddr); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); snprintf(acName, sizeof(acName), "%s_SIZE", acBaseName); snprintf(acTempBuffer, sizeof(acTempBuffer), FORMAT" %d\n", acName, iDataLenBeforeCompress); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); snprintf(acName, sizeof(acName), "%s_COMPRESS_SIZE", acBaseName); snprintf(acTempBuffer, sizeof(acTempBuffer), FORMAT" %d\n", acName, iDataLenAfterCompress); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); snprintf(acName, sizeof(acName), "%s_WIDTH", acBaseName); snprintf(acTempBuffer, sizeof(acTempBuffer), FORMAT" %d\n", acName, iWidth); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); snprintf(acName, sizeof(acName), "%s_HEIGHT", acBaseName); snprintf(acTempBuffer, sizeof(acTempBuffer), FORMAT" %d\n\n", acName, iHeight); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); if(pfBinFile) { char acTemp[8]; memset(acTemp, 0, sizeof(acTemp));// printf("===>[%s, %d]%x\n", __FUNCTION__, __LINE__, ftell(pfBinFile)); fwrite(pucCompressData, iDataLenAfterCompress, 1, pfBinFile); fwrite(acTemp, iTempOffset, 1, pfBinFile); } iAddr = iAddr + iDataLenAfterCompress + iTempOffset; } }while(0); if(pucCompressData) { free(pucCompressData); pucCompressData = NULL; }}#define PNG_BYTES_TO_CHECK 4void UseLibPNGToLoadPNGFile(IMAGE_NAME stFileName){ FILE *fp; png_structp png_ptr; png_infop info_ptr; png_bytep* row_pointers; char buf[PNG_BYTES_TO_CHECK]; int iWidth, iHeight, iIndexX, iIndexY, iTemp, iColorType; BOOL bGetImageData = FALSE; unsigned char *pucImageBuffer = NULL; if(strlen(stFileName.acName) <= 0 || strlen(stFileName.acBaseName) <= 0) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); return; } do { fp = fopen(stFileName.acName, "rb"); if(fp == NULL) { break; } png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING, 0, 0, 0); info_ptr = png_create_info_struct(png_ptr); setjmp(png_jmpbuf(png_ptr)); iTemp = fread(buf, 1, PNG_BYTES_TO_CHECK, fp); if(iTemp < PNG_BYTES_TO_CHECK) { break; } iTemp = png_sig_cmp((png_bytep)buf, (png_size_t)0, PNG_BYTES_TO_CHECK); if(iTemp != 0) { break; } rewind(fp); png_init_io(png_ptr, fp); png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_EXPAND, 0); iColorType = png_get_color_type(png_ptr, info_ptr); iWidth = png_get_image_width(png_ptr, info_ptr); iHeight = png_get_image_height(png_ptr, info_ptr); row_pointers = png_get_rows(png_ptr, info_ptr);// printf("===>[%s, %d]%d %d %d\n", __FUNCTION__, __LINE__, iWidth, iHeight, iColorType); pucImageBuffer = (unsigned char *)malloc(iWidth * iHeight * 4); if(pucImageBuffer == NULL) { break; } bGetImageData = FALSE; switch(iColorType) { case PNG_COLOR_TYPE_RGB_ALPHA: for(iIndexY = 0; iIndexY < iHeight; ++iIndexY) { for(iIndexX = 0; iIndexX < iWidth * 4; iIndexX += 4) { *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX + 2) = row_pointers[iIndexY][iIndexX + 0];//r *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX + 1) = row_pointers[iIndexY][iIndexX + 1];//g *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX + 0) = row_pointers[iIndexY][iIndexX + 2];//b *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX + 3) = row_pointers[iIndexY][iIndexX + 3];//a } } bGetImageData = TRUE; break; case PNG_COLOR_TYPE_RGB: { int iTempIndex = 0; for(iIndexY = 0; iIndexY < iHeight; ++iIndexY) { for(iIndexX = 0; iIndexX < iWidth * 3;iIndexX +=3) { iTempIndex = (iIndexX / 3) * 4; *(pucImageBuffer + iIndexY * iWidth * 4 + iTempIndex + 2) = row_pointers[iIndexY][iIndexX + 0]; *(pucImageBuffer + iIndexY * iWidth * 4 + iTempIndex + 1) = row_pointers[iIndexY][iIndexX + 1]; *(pucImageBuffer + iIndexY * iWidth * 4 + iTempIndex + 0) = row_pointers[iIndexY][iIndexX + 2]; *(pucImageBuffer + iIndexY * iWidth * 4 + iTempIndex + 3) = 0xff; } } bGetImageData = TRUE; } break; default: break; } if(bGetImageData) {// FlipImage(pucImageBuffer, iWidth, iHeight); WriteToFile(iAddr, iWidth, iHeight, pucImageBuffer, stFileName.acBaseName); } }while(0); if(pucImageBuffer) { free(pucImageBuffer); pucImageBuffer = NULL; } if(fp) { fclose(fp); fp = NULL; } png_destroy_read_struct( &png_ptr, &info_ptr, 0);}void LoadBMPFile(IMAGE_NAME stFileName){ FILE *fp = NULL; BITMAPFILEHEADER stPicHead; BITMAPINFOHEADER stPicInfoHead; int iWidth = 0; int iHeight = 0; int iBitCount = 0; int iLineByte = 0; unsigned char *pucPicBuffer = NULL; unsigned char *pucImageBuffer = NULL; if(strlen(stFileName.acName) <= 0 || strlen(stFileName.acBaseName) <= 0) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); return; } do { fp = fopen(stFileName.acName, "rb"); if(fp == NULL) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); break; } fread(&stPicHead.bfType, sizeof(stPicHead.bfType), 1, fp); fread(&stPicHead.bfSize, sizeof(stPicHead.bfSize), 1, fp); fread(&stPicHead.bfReserved1, sizeof(stPicHead.bfReserved1), 1, fp); fread(&stPicHead.bfReserved2, sizeof(stPicHead.bfReserved2), 1, fp); fread(&stPicHead.bfOffBits, sizeof(stPicHead.bfOffBits), 1, fp); if(stPicHead.bfType != 0x4D42) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); break; } fread(&stPicInfoHead, 1, sizeof(stPicInfoHead), fp); iWidth = stPicInfoHead.biWidth; iHeight = stPicInfoHead.biHeight; iBitCount = stPicInfoHead.biBitCount;// printf("===>[%s, %d]%d %d %d\n", __FUNCTION__, __LINE__, iWidth, iHeight, iBitCount);// printf("===>[%s, %d]%d %x\n", __FUNCTION__, __LINE__, stPicInfoHead.biSize, stPicInfoHead.biSizeImage); if(iBitCount == 24 || iBitCount == 32) { int iIndexY = 0; int iIndexX = 0; iLineByte = (iWidth*iBitCount / 8 + 3) / 4 * 4; pucPicBuffer = (unsigned char *)malloc(iHeight * iLineByte); if(NULL == pucPicBuffer) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); break; } pucImageBuffer = (unsigned char *)malloc(iHeight * iWidth * 4); if(NULL == pucImageBuffer) { printf("===>[%s, %d]\n", __FUNCTION__, __LINE__); break; } fread(pucPicBuffer, 1, iHeight * iLineByte, fp);// printf("===>[%s, %d]%x\n", __FUNCTION__, __LINE__, iHeight * iLineByte); FlipImage(pucPicBuffer, iLineByte / 4, iHeight); if(iBitCount == 24) { for(iIndexY = 0; iIndexY < iHeight; ++iIndexY) { for(iIndexX = 0; iIndexX < iWidth; ++iIndexX) { *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 0) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 3 + 0);//b *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 1) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 3 + 1);//g *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 2) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 3 + 2);//r *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 3) = 0xff; } } } else if(iBitCount == 32) { for(iIndexY = 0; iIndexY < iHeight; ++iIndexY) { for(iIndexX = 0; iIndexX < iWidth; ++iIndexX) { *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 0) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 4 + 0);//b *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 1) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 4 + 1);//g *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 2) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 4 + 2);//r *(pucImageBuffer + iIndexY * iWidth * 4 + iIndexX * 4 + 3) = *(pucPicBuffer + iIndexY * iLineByte + iIndexX * 4 + 3);//a } } } WriteToFile(iAddr, iWidth, iHeight, pucImageBuffer, stFileName.acBaseName); } }while(0); if(fp) { fclose(fp); fp = NULL; } if(pucPicBuffer) { free(pucPicBuffer); pucPicBuffer = NULL; } if(pucImageBuffer) { free(pucImageBuffer); pucImageBuffer = NULL; }}void HandleImageFile(){ int iIndex = 0; IMAGE_NAME stTemp; int iIndexTemp = 0; char acTempBuffer[1024]; do { pfHeaderFile = fopen(HEADER_FILE, "w"); if(pfHeaderFile == NULL) { break; } pfBinFile = fopen(BIN_FILE, "w"); if(pfBinFile == NULL) { break; } snprintf(acTempBuffer, sizeof(acTempBuffer), "#ifndef %s\n", HEADER_MARO); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); snprintf(acTempBuffer, sizeof(acTempBuffer), "#define %s\n\n", HEADER_MARO); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); DEBUG_DEB("Total %d PNG file.\n", stImageFile.uiTotalPNGFile); for(iIndex = 0; iIndex < stImageFile.uiTotalPNGFile; iIndex++) { stTemp = stImageFile.stImageName[iIndex]; UseLibPNGToLoadPNGFile(stTemp); } DEBUG_DEB("Total %d BMP file.\n", stImageFile.uiTotalBMPFile); for(iIndex = 0; iIndex < stImageFile.uiTotalBMPFile; iIndex++) { iIndexTemp = BMP_INDEX(iIndex); stTemp = stImageFile.stImageName[iIndexTemp]; LoadBMPFile(stTemp); } snprintf(acTempBuffer, sizeof(acTempBuffer), "#endif\n"); fwrite(acTempBuffer, strlen(acTempBuffer), 1, pfHeaderFile); }while(0); if(pfHeaderFile) { fclose(pfHeaderFile); pfHeaderFile = NULL; } if(pfBinFile) { fclose(pfBinFile); pfBinFile = NULL; }}int main(int argc, char *argv[]){ FindAllImageFile(); if(stImageFile.uiTotalBMPFile + stImageFile.uiTotalPNGFile > 0) { SortImageFile(); HandleImageFile(); } return 0;}bmp.h
#ifndef BMP_H_#define BMP_H_typedef unsigned int DWORD;typedef unsigned short WORD;typedef unsigned char BYTE;typedef long LONG;typedef struct tagBITMAPFILEHEADER { WORD bfType; DWORD bfSize; WORD bfReserved1; WORD bfReserved2; DWORD bfOffBits;} BITMAPFILEHEADER;typedef struct tagBITMAPINFOHEADER{ DWORD biSize; DWORD biWidth; DWORD biHeight; WORD biPlanes; WORD biBitCount; DWORD biCompression; DWORD biSizeImage; DWORD biXPelsPerMeter; DWORD biYPelsPerMeter; DWORD biClrUsed; DWORD biClrImportant;} BITMAPINFOHEADER;typedef struct tagRGBQUAD { // rgbq BYTE rgbBlue; BYTE rgbGreen; BYTE rgbRed; BYTE rgbReserved;} RGBQUAD;#endif /* BMP_H_ */Userdefine.h
#ifndef USERDEFINE_H_#define USERDEFINE_H_#if 1#define DEBUG_DEB(fmt, arg...) printf("[DEBUG][%s,%d]"fmt, __FUNCTION__, __LINE__, ##arg)#else#define DEBUG_DEB(fmt, arg...)#endif#if 0#define DEBUG_INFO(fmt, arg...) printf("[DEBUG][%s,%d]"fmt, __FUNCTION__, __LINE__, ##arg)#else#define DEBUG_INFO(fmt, arg...)#endif#if 1#define DEBUG_ERR(fmt, arg...) printf("[ERROR][%s,%d]"fmt, __FUNCTION__, __LINE__, ##arg)#else#define DEBUG_ERR(fmt, arg...)#endiftypedef enum{ FALSE, TRUE,}BOOL;typedef unsigned int U32;#endif /* USERDEFINE_H_ */ 0 0
- png和bmp图片像素读取（linux）
- GDI+ 读取(jpg,PNG,BMP)等格式)图片每个像素的值
- 使用libpng读取PNG图片像素数据 .
- png图片像素隐藏
- opencv对于bmp图像像素值的读取和赋值
- linux下读取bmp图片文件头
- 基于framebuffer显示图片(bmp && png)和汉字
- C代码生成图片:BMP、PNG和JPEG
- PictureCtrol加载bmp、png图片
- framebuffer 保存png, bmp图片
- Java读取图片像素和大小
- AE+C# 导出图片（BMP、JPEG、GIF、PNG、TIFF）
- 使用CStatic显示图片（bmp、ico、png）
- 各种图片编码格式详解（bmp,jpg,png）
- 读取bmp格式图片（二）
- java读取BMP图片
- 简易bmp图片读取
- 读取bmp图片代码
- (斯坦福机器学习课程笔记)支持向量机之对偶问题
- Emmet (Zen Coding) HTML基本语法
- Sqlite数据库基础
- python fabric部署elk的filebeat日志收集客户端
- Unity 动画模型Mecanim应用
- png和bmp图片像素读取（linux）
- Android 系列 3.3使用Eclipse和JUnit测试
- [李景山php]每天TP5-20170202|thinkphp5-Request.php-5
- mysql 协议的认证包及解析
- Chrome开发-基础知识
- 一张图教你如何设计网页
- haisi三51六sdk
- java 重定向和转发的区别
- Redis关于缓存雪崩和缓存穿透等问题
