argbheader,argb header
华硕主板上的RGB_HEADER是用来接什么的?
华硕主板上的RGB_HEADER 这个接头用来连接rgb指示灯带（需自购），支持5050 RGB多彩灯带。
需要安装aura 软件进行设置和控制。
c# 数字图象处理24位转8位并标记计数出现了问题，急！
可以参考下面的程序，其中bitCount!=8 bitCount!=24指的就是8位与24位
//BMP与IplImage相互转换
///////////////////////////////头文件bmp2ipl.h
//bmp2ipl.h
#ifndef BMP2IPL_H
#define BMP2IPL_H
class BMP {
public:
BMP():bmpData(NULL) {
memset(biHeader, 0, sizeof(biHeader));
}
BMP(const BMP img);
BMP(const IplImage img);
BMP(int width, int height, int bitCount);
~BMP(){ delete [] bmpData; }
bool CreateImage(const BITMAPINFOHEADER biHeader);
//Export
IplImage * BMP2Ipl();
//void Show(HWND hWnd, int nID);
//void Show(CDC *pDC, CRect rect);
//void Show(HWND hWnd);
void ReSize(int newW, int newH);
private:
void CopyData(char *dest, const char *src, int dataByteSize,
bool isConvert, int height);
// isConvert=true 进行顶左和底左之间的转换(顶左到底左或底左到顶左)，否则不转换
// biSizeImage may be set to zero for BI_RGB bitmaps, so calculate it.
int ImgSize() {
return ( biHeader.biHeight * ((biHeader.biWidth * biHeader.biBitCount / 8 + 3) (-4)));
}
public:
void Clear();
BITMAPINFOHEADER biHeader;
unsigned char * bmpData;
};
#endif
/////////////////////////////////////////////////////////////////////实现文件bmp2ipl.cpp
#include "bmp2ipl.h"
/**************************************************************************************************
* *
* NOTE: *
* Only use the "8 bit, 1 or 3 channels" image, the BitMap use LowerLeft （底左）, *
* the IplImage use TopLeft （顶左） *
* IplImage: *
* nChannels = 1 or 3 number of channels *
* depth = IPL_DEPTH_8U pixel depth (8 bit), IPL_DEPTH_8U=8 *
* dataOrder = 0 交叉存取颜色通道 *
* origin = IPL_ORIGIN_TL 图像数据保存形式，IPL_ORIGIN_BL底左结构, IPL_ORIGIN_TL顶左结构 *
* align = 4 行数据对齐方式，保证下一行数据从整4字节位置开始 *
* width *
* height *
* widthStep 图像数据行大小，单位字节 *
* imageSize 图像数据大小(=height*widthStep)，单位字节 *
* imageData 指向图像数据区，char * *
* BITMAPINFOHEADER: *
* biSize Specifies the number of bytes required by the structure *
* biWidth *
* biHeight(0) biHeight0底左结构；biHeight0顶左结构 *
* biPlanes = 1 Specifies the number of planes for the target device. This value *
* must be set to 1. *
* biBitCount =8 or 24 bits-per-pixel,8-(pixelDepth=8,channels=1), *
* 24-(pixelDepth=8,channels=3) *
* biCompression = BI_RGB An uncompressed format *
* biSizeImage Specifies the size, in bytes, of the image.This may be set to zero *
* for BI_RGB bitmaps. *
* biXPelsPerMeter = 0 *
* biYPelsPerMeter = 0 *
* biClrUsed = 0 *
* biClrImportant = 0 *
* *
***************************************************************************************************/
BMP::BMP(const BMP img)
{
if(!IsSupport(img)) {
BMP();
return;
}
//biHeader = img.biHeader;
PBITMAPINFOHEADER pBmpH = (PBITMAPINFOHEADER)img.biHeader;
memcpy(biHeader, pBmpH, sizeof(BITMAPINFOHEADER));
biHeader.biSizeImage = ImgSize();
bool isLowerLeft = biHeader.biHeight0;
//int rowSize=0;
if(!isLowerLeft) biHeader.biHeight=-biHeader.biHeight;
if(bmpData!=NULL) delete[] bmpData;
bmpData = new unsigned char [biHeader.biSizeImage];
//memcpy(bmpData, img.bmpData, img.biHeader.biSizeImage);
CopyData((char *)bmpData, (char*)img.bmpData, biHeader.biSizeImage,
!isLowerLeft, biHeader.biHeight);
}
BMP::BMP(const IplImage img) {
if(!IsSupport(img)) {
BMP();
return;
}
bool isTopLeft = (img.origin == IPL_ORIGIN_TL);
biHeader.biSize = sizeof(BITMAPINFOHEADER);
biHeader.biWidth = img.width;
biHeader.biHeight = img.height;
biHeader.biPlanes = 1;
biHeader.biBitCount = img.depth * img.nChannels;
biHeader.biCompression = BI_RGB;
biHeader.biSizeImage = img.imageSize;
biHeader.biXPelsPerMeter = 0;
biHeader.biYPelsPerMeter = 0;
biHeader.biClrUsed = 0;
biHeader.biClrImportant = 0;
if(bmpData!=NULL) delete[] bmpData;
bmpData = new unsigned char [img.imageSize];
//memcpy(bmpData, img.ImageData, img.imageSize);
CopyData((char*)bmpData, (char*)img.imageData, img.imageSize,
isTopLeft, img.height);
/*int i,j;
CvScalar s;
for(i=0;iimg.width;i++)
for(j=0;jimg.height;j++){
s=cvGet2D(img,i,j);
}
*/
}
BMP::BMP(int width, int height, int bitCount) {
if(bitCount!=8 bitCount!=24) return;
biHeader.biSize = sizeof(BITMAPINFOHEADER);
biHeader.biWidth = width;
biHeader.biHeight = height;
biHeader.biPlanes = 1;
biHeader.biBitCount = bitCount;
biHeader.biCompression = BI_RGB;
biHeader.biSizeImage = ImgSize();
biHeader.biXPelsPerMeter = 0;
biHeader.biYPelsPerMeter = 0;
biHeader.biClrUsed = 0;
biHeader.biClrImportant = 0;
if(bmpData!=NULL) delete[] bmpData;
bmpData = new unsigned char [biHeader.biSizeImage];
Clear();
}
// dest: the destination image
// dataByteSize: the Source image
// height: source image height
void BMP::CopyData(char *dest, const char *src, int dataByteSize,
bool isConvert, int height) {
char * p = dest;
if(!isConvert) {
memcpy(dest, src, dataByteSize);
return;
}
if(height=0) return;
//int height = dataByteSize/rowByteSize;
int rowByteSize = dataByteSize / height;
src = src + dataByteSize - rowByteSize ;
for(int i=0; iheight; i++) {
memcpy(dest, src, rowByteSize);
dest += rowByteSize;
src -= rowByteSize;
}
}
IplImage * BMP::BMP2Ipl() {
if(!IsSupport(*this)) return NULL;
IplImage *iplImg;
int height;
bool isLowerLeft = biHeader.biHeight0;
height = (biHeader.biHeight0) ? biHeader.biHeight : -biHeader.biHeight;
iplImg = cvCreateImage( cvSize(biHeader.biWidth, height), IPL_DEPTH_8U, biHeader.biBitCount / 8);
//iplImg = cvCreateImageHeader( cvSize(biHeader.biWidth, height), IPL_DEPTH_8U, biHeader.biBitCount / 8);
//cvSetData(iplImg,(char*)bmpData,biHeader.biSizeImage/height);
CopyData( iplImg-imageData, (char*)bmpData, biHeader.biSizeImage,
isLowerLeft, height);
/*int i,j;
CvScalar s;
int channels=biHeader.biBitCount / 8;
int step=(biHeader.biWidth*channels+3) -4;
int loc=0;
for(i=0;iiplImg-height;i++){
for(j=0;jiplImg-width;j++){
loc=i*step + j*channels;
s.val[0]=bmpData[loc];
if(channels==3){
s.val[1]=bmpData[loc+1];
s.val[2]=bmpData[loc+2];
}
cvSet2D(iplImg,i,j,s);
}
}*/
return iplImg;
}
void BMP::Clear() {
if(bmpData == NULL) return;
memset(bmpData, 0, ImgSize());
}
void BMP::ReSize(int newW, int newH) {
biHeader.biWidth = newW;
biHeader.biHeight = newH;
biHeader.biSizeImage = ImgSize();
if(bmpData!=NULL) delete[] bmpData;
bmpData = new unsigned char [biHeader.biSizeImage];
Clear();
}
bool BMP::CreateImage(const BITMAPINFOHEADER bih) {
memset(biHeader,0,sizeof(BITMAPINFOHEADER));
delete[] bmpData;
bmpData = NULL;
memcpy(biHeader, bih, sizeof(BITMAPINFOHEADER));
biHeader.biSizeImage = ImgSize();
bmpData = new unsigned char [ biHeader.biSizeImage ];
if(bmpData == NULL) return false;
else{
Clear();
return true;
}
}
C++中应该怎么样处理32位位图？有函数可以直接访问ARGB吗？需要将32位位图转为8位来做处理吗？
不需要啊，虽然没有内置函数，但是CreateDIBSection基本无敌了。
读文件的话，你只需要把位图文件按顺序读入BITMAPFILEHEADER和BITMAPINFO，用BITMAPINFO结构可以创建一个HBITMAP，然后把文件剩下的内容拷贝进Create得出的那个缓冲区就行了。
至于操作，缓冲区内的像素排布是从左上角横向排到右下角的，按这样的顺序：ARGBARGBARGB...每个通道的位数由BITMAPINFO.bmiHeader.biBitCount决定，自己用数组的方式读写就行了；
如果你已经清楚该怎么做了，我就不给出代码咯