#include?
#include?
#include?

unsigned?char?*pBmpBuf;//讀入圖像數(shù)據(jù)的指針
int?bmpWidth;//圖像的寬
int?bmpHeight;//圖像的高
RGBQUAD?*pColorTable;//顏色表指針
int?biBitCount;//圖像類型，每像素位數(shù)


int?readBmp（char?*bmpName）{
	FILE?*fp=fopen（bmpName“rb“）;//二進(jìn)制讀方式打開指定的圖像文件
	if（fp==0）{
		printf（“打水印失敗\n“）;
		return?0;
	}

	fseek（fp?sizeof（BITMAPFILEHEADER）0）;//跳過位圖文件頭結(jié)構(gòu)BITMAPFILEHEADER
	BITMAPINFOHEADER?head;??//定義位圖信息頭結(jié)構(gòu)變量，讀取位圖信息頭進(jìn)內(nèi)存，存放在變量head中
	fread（&head?sizeof（BITMAPINFOHEADER）?1fp）;?

	bmpWidth?=?head.biWidth;
	bmpHeight?=?head.biHeight;
	biBitCount?=?head.biBitCount;//獲取圖像寬、高、每像素所占位數(shù)等信息
	int?lineByte=（bmpWidth?*?biBitCount/8+3）/4*4;//定義變量，計(jì)算圖像每行像素所占的字節(jié)數(shù)（必須是4的倍數(shù)）
	
	if（biBitCount==8）{//灰度圖像有顏色表，且顏色表表項(xiàng)為256
		pColorTable=malloc（sizeof（RGBQUAD）*256）;?//申請顏色表所需要的空間，讀顏色表進(jìn)內(nèi)存
		fread（pColorTablesizeof（RGBQUAD）256fp）;
	}
	pBmpBuf=malloc（sizeof（unsigned?char）*lineByte?*?bmpHeight）;//申請位圖數(shù)據(jù)所需要的空間，讀位圖數(shù)據(jù)進(jìn)內(nèi)存
	fread（pBmpBuf1lineByte?*?bmpHeightfp）;
	fclose（fp）;//關(guān)閉文件
	return?1;
}


int?saveBmp（char?*bmpName?unsigned?char?*imgBuf?int?width?int?height?int?biBitCount?RGBQUAD?*pColorTable）{
	if（!imgBuf）//如果位圖數(shù)據(jù)指針為0，則沒有數(shù)據(jù)傳入，函數(shù)返回
		return?0;
	int?colorTablesize=0;//顏色表大小，以字節(jié)為單位，灰度圖像顏色表為1024字節(jié)，彩色圖像顏色表大小為0
	if（biBitCount==8）
		colorTablesize=1024;
	int?lineByte=（width?*?biBitCount/8+3）/4*4;//待存儲圖像數(shù)據(jù)每行字節(jié)數(shù)為4的倍數(shù)
	FILE?*fp=fopen（bmpName“wb“）;//以二進(jìn)制寫的方式打開文件
	if（fp==0）{
		printf（“!!!!\n“）;
		return?0;
	}
		
	BITMAPFILEHEADER?fileHead;//申請位圖文件頭結(jié)構(gòu)變量，填寫文件頭信息
	fileHead.bfType?=?0x4D42;//bmp類型
	fileHead.bfSize=?sizeof（BITMAPFILEHEADER）+sizeof（BITMAPINFOHEADER）+colorTablesize+lineByte*height;//bfSize是圖像文件4個(gè)組成部分之和
	fileHead.bfReserved1?=?0;
	fileHead.bfReserved2?=?0;
	fileHead.bfOffBits=54+colorTablesize;//bfOffBits是圖像文件前3個(gè)部分所需空間之和
	fwrite（&fileHead?sizeof（BITMAPFILEHEADER）1?fp）;//寫文件頭進(jìn)文件
	
	BITMAPINFOHEADER?head;?//申請位圖信息頭結(jié)構(gòu)變量，填寫信息頭信息
	head.biBitCount=biBitCount;
	head.biClrImportant=0;
	head.biClrUsed=0;
	head.biCompression=0;
	head.biHeight=height;
	head.biPlanes=1;
	head.biSize=40;
	head.biSizeImage=lineByte*height;
	head.biWidth=width;
	head.biXPelsPerMeter=0;
	head.biYPelsPerMeter=0;
	fwrite（&head?sizeof（BITMAPINFOHEADER）1?fp）;//寫位圖信息頭進(jìn)內(nèi)存
?	
	if（biBitCount==8）//如果灰度圖像，有顏色表，寫入文件?
		fwrite（pColorTable?sizeof（RGBQUAD）256?fp）;
	fwrite（imgBuf?height*lineByte?1?fp）;//寫位圖數(shù)據(jù)進(jìn)文件
	fclose（fp）;//關(guān)閉文件
	?return?1;
}


int?main（）{
	int?o=0;//RGB計(jì)數(shù)器?
	printf（“BMP文件錄入位置：\nE:/project/devcpp/img/input1.BMP\nE:/project/devcpp/img/input2.BMP\n\n“）;
	char?readPath1[]=“E:/project/devcpp/img/input1.BMP“;//讀入指定BMP文件進(jìn)內(nèi)存
	readBmp（readPath1）;
	unsigned?char?*pBmpBuf1=pBmpBuf;;//讀入圖像數(shù)據(jù)的指針
	int?bmpWidth1=bmpWidth;//圖像的寬
	int?bmpHeight1=bmpHeight;//圖像的高
	RGBQUAD?*pColorTable1=pColorTable;//顏色表指針
	int?biBitCount1=biBitCount;//圖像類型，每像素位數(shù)
	
	char?readPath2[]=“E:/project/devcpp/img/input2.BMP“;//讀入指定BMP文件進(jìn)內(nèi)存
	readBmp（readPath2）;
	unsigned?char?*pBmpBuf2=pBmpBuf;;//讀入圖像數(shù)據(jù)的指針
	int?bmpWi

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-06-07?18:12??BMP?WaterMark\
?????文件????????5120??2017-09-08?10:01??BMP?WaterMark\BMPWaterMark.c
?????文件?????????918??2017-08-30?08:49??BMP?WaterMark\BMPWaterMark.dev
?????文件?????1116885??2017-09-08?10:01??BMP?WaterMark\BMPWaterMark.exe
?????文件??????????94??2017-09-08?11:03??BMP?WaterMark\BMPWaterMark.layout
?????文件??????986887??2017-09-08?10:01??BMP?WaterMark\BMPWaterMark.o
?????文件????????1180??2017-09-08?10:01??BMP?WaterMark\Makefile.win