c - What is the simplest RGB image format? -

i working in c on physics experiment, young's interference experiment , made program prints file huge bunch of pixels :

for (i=0; < width*width; i++) {     fwrite(hue(raster_matrix[i]), 1, 3, file); } 

where hue, when given value [0..255], gives char * 3 bytes, r,g,b.

i put minimal header in image file in order make raw file valid image file.

more concise : switching :

offset 0000 : height * width : data } data, 24bit rgb pixels 

to

offset 0000 : dword : magic        \      : /* ?? */              \ 0012 : dword : height         } header <--> common image file 0016 : dword : width         /      : /* ?? */             / 0040 : height * width : data  } data, 24bit rgb pixels 

thank you.

you want use ppm format you're looking for: minimal header followed raw rgb.