I can't find any examples to create a .BMP file in C given pixel information.
The image I need to create is 10x10 resolution and is in greyscale (256 shades of grey).
I can't even find any header structure information a 8bit greyscale (i can only find info for RGB color examples)
Can any one please help??
Many thanks!
Wotsit is your buddy. Your pal. You're friend.
Quzah.
Hope is the first step on the road to disappointment.
How is this a C-question? Common file formats are described here:Originally Posted by Lydecker
http://www.wotsit.org/
And to answer to your next and true C-question, no, a C-structure is not good to map stream information. You must read/write the data byte by byte from/to the stream to/from some internal structure.
Good practice is to have the stream in an array of unsigned char in binary mode ("rb"/"rw") with fread() / fwrite().
Emmanuel Delahaye
"C is a sharp tool"
So I should declare an array of chars 10 by 10 with each location containing a integer between 0 and 255 representing the shade of grey?
I then print out to a new file using binary write the .bmp header info followed by the 10 by 10 array????
Thanks for the help (- I' think I'm getting the idea slowly!)
Use the 256 palletized bmp format.
File:
- Header
- Palette
- Byte data
Also for RGB data greyscale is simply equal amounts of RGB for each color and a color reduction scheme is used to ensure there are only 256 different colors or diff shades of grey.
