1. Re: Converting .BMP to a data file without a heade
- Posted by Ralf Nieuwenhuijsen <nieuwen at POP.XS4ALL.NL> May 31, 1997
- 790 views
> Thanks, but using your EDOM the zipped file became bigger and slower :( > > I tried with this file: > > BMP File (with header): 102 kb > Zipped BMP File: 17kb <---- The smallest one. > EDO File: 36 kb > Zipped EDO File: 30 kb > > Actually the EDO file is smaller, but comparing the final zipped BMP file > (the one that matters, since I just want to make the distribution file > smaller) with the > zipped EDO file, the BMP zipped is smaller. > And for reading the BMP file I spent 1 second but for reading the EDO file > I spent almost a minute ! Yes, i know, it are 2 routines combined and the compression routine isn't so fast, but do know that the sequence structure is also saved, this takes a little bit more space than a bmp-file, but the compression makes up for this, it's only a shame it is so slow.... Maybe when i understand one of the compression methods i'll rewrite the code in a nice compact function, which should be a lot quicker. The code that makes bits out of a sequence is very old code of mine, i do not understand it any more, i made it last spring when i was 14. But i'll look-in to it, cuse it really needs improvement, i know... Ralf Nieuwenhuijsen nieuwen at xs4all.nl