Hi, On Tue, May 7, 2013 at 5:58 PM, Charles Belhumeur <[email protected]> wrote: > > I also had a career as a commercial artist and photographer back in the > 1980s.
Did you use DOS (for such) back then? Mac? Neither? FYI, sources for Photoshop 1.0.1 from 1991 were recently released for non-commercial use (75% Pascal, rest is 68000 asm). http://computerhistory.org/atchm/adobe-photoshop-source-code/ No, I don't plan to port it to DOS, but it's probably not impossible. ;-) (Dunno if that "Pixel" guy still has his DOS beta build. IIRC, that was supposed to be an impressive tool.) > Still do a lot privately. Some of my graphics files are nearing 2 > gigs now. (I do weird high res stuff.) The best hardware is just beginning > to approach the information density of good old fashioned 35 mm film. Can't remember. Yes, I used cameras that had film, it hasn't been that super long since we all did. Don't know the details on resolutions. > Its a printer's eye thing most lay people wouldn't appreciate. I think you > can > see how slicing up an image into more than one file would be problematic. I'm a noob at photography. I did get a (very cheap, common, average) one as a gift a few years ago (2005), but it's fairly low res (3 MP?). It only has like four resolutions, and all of them just store to .JPG files (with varying levels of compression). JPEG does have a lossless variant, but it's rare, and at least my camera doesn't support it. And no, obviously, none of my pics come anywhere near to 2 GB. My point is that: 1). you can (de-)compress data at runtime, even if the format itself doesn't explicitly compress it for you, and 2). doesn't JPEG already break up images into various pieces? I don't know the details (DCT? FFT?), but unless I'm mistaken (not a huge stretch) it should be possible to split into pieces in separate files. There's nothing extraordinary about breaking data up into pieces on a fixed disk. (I know PAQ8 can re-compress JPEGs to smaller size by first decompressing the built-in format and using a superior one. It's not 100% transparent, you still need to unpack before it's a normal .JPG again, but it does work. StuffIt supports something similar, IIRC.) Though I guess any ramblings about that are moot without some explicit tools to do so. I'm not big on graphic image manipulation, so I don't know. (Blair did compile Image Magick for us a few years ago, it's on iBiblio, but I don't know how much that'd help you. Similarly NetPbm for DOS exists too.) P.S. I also bought used a Sony Mavica (?) from a flea market-esque sale a few years back. Since this is (IIRC) circa 1997, it used a floppy disk for storage (640x480?). Heck, I just thought it was funny, and the sales were for charity anyways (and this one didn't have a needed rechargeable battery, which lessens the usefulness). So I dunno, technology has come a long way but still has much further to go. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Freedos-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-devel
