Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 265
  • Last Modified:

image file header info

i need to be able to recognise an image and process it accordingly by looking at the header information in the file.

therefore, i need to know the exact format of each image file header... is this information available in a simple format anywhere??

a text file outlining the exact byte format would be great.

i only need the format the header of jpg, bmp, pcx and gif files (all types).

thanx
0
Sesh
Asked:
Sesh
1 Solution
 
MorFFCommented:
Some info that should be useful (pretty comprehensive):

pcx specific:
http://www.qzx.com/pc-gpe/pcx.txt
bmp specific:
http://www.qzx.com/pc-gpe/bmp.txt
gif specific:
http://www.qzx.com/pc-gpe/gif.txt
jpeg specific:
http://www.obrador.com/essentialjpeg/HeaderInfo.htm


general (but not as detailed):
http://www.zdnet.com/pcmag/issues/1521/pcmg0038.htmhttp://www2.echo.lu/oii/en/raster.html

Cheers - MorFF
0
 
MorFFCommented:
0
 
BlessyCommented:
Thanks for posting the links.  They are helpful
0
 
SeshAuthor Commented:
thankyou for your answers... but... is there any more complete definitions on the JPEG header standard??  i looked at http://www.obrador.com/essentialjpeg/HeaderInfo.htm and it didnt cover a lot of the headers adobe uses when creating jpgs...

i just need to create a program that extracts the width and height details from image files (jpgs in particular)
0
 
nils pipenbrinckCommented:
jpeg and some other formats can be found at my website:

http://www.cubic.org/source/archive/fileform/graphic/

happy coding,
  Nils
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now