Why is it that the X-internet scares the hell out of me? this example: do %image.png... is REALLY COOL !
BUT ... What a wonderfull way for mallicious people to include nasty stuff... its completely hidden from normal users AND they see ".png" and tell themsleves ... oh its just an image... no worry... DOH... I mean, it would be easy to _replace_ a perfectly OK script in an image with a nasty one for any _in_competent programmer! If all kind of x-internet systems become commonplace, is it just me or isn't it MUCH easier for the computing industry to go haywire? -Max ----- Original Message ----- From: "Jason Cunliffe" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, November 12, 2001 11:00 PM Subject: [REBOL] Re: PNG => was Re: Re: Image processing and embedding metadata in images? > > http://www.libpng.org/pub/png/spec/PNG-Chunks.html#C.Anc-text > > Well for any who may be interested, here's some more I dug up: > > The iTXt chunk (international/Unicode text) is ripe for all sorts of uses. > As you might expect, several enterprising people have written toolkits for > exploring this. Here are a couple to get going: > > http://pmt.sourceforge.net/pngcrush/index.html > Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can > be run from a commandline in an MSDOS window, or from a UNIX or LINUX > commandline. > > http://www.libpng.org/pub/png/apps/pngmeta.html > http://pmt.sourceforge.net/pngmeta/index.html > [OpenSource] > pngmeta is a command-line program that extracts metadata (such as text > annotations) from PNG images and formats it as HTML, SOIF, RDF/XML, or > simple keyword/value pairs. It can be used as part of a CGI script, for > example. > > http://entropymine.com/jason/tweakpng/ > [GPL C++ source included] > TweakPNG is a low-level utility for examining and modifying PNG image files. > It runs on Windows 95 (or 98 or higher) or Windows NT. Nice interface, easy > to use... For example inserting a fresh iTXt and pasting in a REBOL program! > > do %image.png > > ..becomes an interesting and viable proposition for X-internet. > > Images which can: > - email or upload themselves > - load directly into wikilogs [VANILLA] > - associate intelligently with news [time] and map [locations] systems > - enable smart and dumb i2i [image-to-image] applications > - associate to others in load/play sequences by keyword, name, author, date, > location, url, subscriber, popularity, context ... > - ??? > > A REBOL Port of TweakPNG's iTXt fatures are needed. > Is anyone into Rebolizing a few lines of C++ ?? > > Jason > > > > > > > -- > To unsubscribe from this list, please send an email to > [EMAIL PROTECTED] with "unsubscribe" in the > subject, without the quotes. > -- To unsubscribe from this list, please send an email to [EMAIL PROTECTED] with "unsubscribe" in the subject, without the quotes.
