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  • 大小: 90KB
    文件類型: .rar
    金幣: 2
    下載: 0 次
    發布日期: 2021-05-21
  • 語言: C/C++
  • 標簽:

資源簡介

C語言讀取BMP圖片并存入工程文件夾中,適用于初學者理解BMP文件的結構和格式。開發環境:VS2010

資源截圖

代碼片段和文件信息

#include?
#include?
#include?“BITMAPINFO.h“

using?namespace?std;

#define?LENGTH_NAME_BMP?30 //bmp?file?name?

BITMAPFILEHEADER?strHead;
BITMAPINFOHEADER?strInfo;
RGBQUAD?strPalette[256];

void?showBmpHead(BITMAPFILEHEADER?pBmpHead)
{
cout?< cout?< cout< cout< cout<}

void?showBmpInfoHead(tagBITMAPINFOHEADER?pBmpInfoHead)
{
cout?< cout?< cout?< cout?< cout?< cout?< cout?< cout?< cout?< cout?< cout?< cout?<}

int?main()
{
char?strFile[LENGTH_NAME_BMP]?=?“lena.bmp“;
IMAGEDATA?*imagedata?=?NULL;
IMAGEDATA?*imagedataOut?=?NULL;
int?width;
int?height;
FILE?*fp?*fpo;
fp?=?fopen(strFile?“rb“);

if(?fp?!=?NULL?)
{
WORD?bfType; //the?type?of?the?file
fread(&bfType?sizeof(WORD)?1?fp);

if(?0x4d42?!=?bfType?)
{
cout?< return?0;
}

fread(&strHead?sizeof(tagBITMAPFILEHEADER)?1?fp);
showBmpHead(strHead);
fread(&strInfo?sizeof(tagBITMAPINFOHEADER)?1?fp);
showBmpInfoHead(strInfo);

//讀取調色板
for(int?i?=?0;?i? {
fread((char?*)&(strPalette[i].rgbBlue)?sizeof(BYTE)?1?fp);
fread((char?*)&(strPalette[i].rgbGreen)?sizeof(BYTE)?1?fp);
fread((char?*)&(strPalette[i].rgbRed)?sizeof(BYTE)?1?fp);
fread((char?*)&(strPalette[i].rgbReserved)?sizeof(BYTE)?1?fp);
}

width?=?strInfo.biWidth;
height?=?strInfo.biHeight;
//width?=?(width?*?sizeof(IMAGEDATA)?+?3)?/4?*?4;
width??=?((width?%?4?==?0????width?:?width?+?(4?-?(width?%?4)))?*?strInfo.biBitCount)?/?8;
imagedata?=?(IMAGEDATA?*)malloc(?width?*?height?);
imagedataOut?=?(IMAGEDATA?*)malloc(?width?*?height?*?sizeof(imagedata));

for(int?j?=?0;?j? {
for(int?i?=?0?;?i? {
(*(imagedata?+?j?*?width?+?i)).blue?=?0;
(*(imagedataOut?+?j?*?width?+?i)).blue?=?0;
}
}

//讀出圖片的像素數據??
fread(imagedata?sizeof(struct?tagIMAGEDATA)?*?width?height?fp);
fclose(fp);
}
el

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3996??2015-02-03?11:13??1_readBmp_1\1_readBmp_1.vcxproj

?????文件???????1079??2015-02-03?11:13??1_readBmp_1\1_readBmp_1.vcxproj.filters

?????文件????????143??2015-02-03?10:46??1_readBmp_1\1_readBmp_1.vcxproj.user

?????文件???????1182??2015-02-03?14:53??1_readBmp_1\BITMAPINFO.h

?????文件??????66614??2014-10-25?14:51??1_readBmp_1\lena.bmp

?????文件??????66614??2015-02-03?14:53??1_readBmp_1\out.bmp

?????文件???????4174??2015-02-03?14:34??1_readBmp_1\test.cpp

?????文件????????900??2015-02-03?10:46??1_readBmp_1.sln

?????目錄??????????0??2015-02-03?15:07??1_readBmp_1

-----------?---------??----------?-----??----

???????????????144702????????????????????9


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