reading .BMP image

[Tatchster]

I have problem opening .BMP image files. I want to get
RGB of data from BMP image files and store it into 3 different arrays, red, green and , blue. But i dont know how to read the raw format. Can somebody tell me how?

 

[Zyrenthian]

I believe all you need to do is:

BITMAPFILEHEADER fh;
BITMAPINFOHEADER ih;

CFile f;
f.Open("mybitmap.bmp",CFile::modeRead);

f.Read(&fh,sizeof(fh));
f.Read(&ih,sizeof(ih));

int spp = ih.biBitCount/8;
int size = ih.biHeight * ih.biWidth*spp;

BYTE* buffer = new BYTE[size];
f.Read(buffer,size);

Buffer should contain the rgb data. You will want to make sure that spp is equal to 3 for rgb data. Also, I am not sure if this is 100% correct. I looked through some old code to find it. It is, however, along the correct path

Matt

 

[guestgulkan]

For graphic file and other types of file formats, go to:

http://www.wotsit.org/