On Tuesday 17 April 2007 01:58, Richard Lynch wrote: > On Fri, April 13, 2007 8:02 pm, Børge Holen wrote: > > Before mr lynch starts beating up those already dead and probably long > > since > > burried horses... > > > > Images in a database! > > Feh. > > Read the archives. > > > See I was just wondering, and that at times leads to late nights > > I used to read the images from two different files; one watermarked > > the image > > and one let it throught without any hazzle. > > Of course this kind of script was easy enought to get around the > > watermarking, > > witch I fixed with the http referer witch as follows IE don't send. I > > don't > > particulary like ppl who use IE (ups did I upset someone?) ;D. > > Using referer for anything other than logging it for "analysis" later > is probably your first mistake... Maby so, but it did work with everything but IE ;D. I seem to have a must try to different approches. > > > However I started compressing my scripts and putting them inside one > > file. > > And the status is so far: > > > > * Query for the image object. > > * Query for copyright check in case of watermarking. If no > > watermarking skip > > to echo > > * Read the object. > > * put object in a file outside webroot like /tmp. > > * read both the watermark and object > > * merge > > * echo > > > > Is it possible to skip one query and still be able to read ownership > > from a > > table and at the same time stream the object, witch lead me to the > > next > > question, I can't seem to be able to make imageCreateFromJPEG handle > > the > > direct stream, nor that I fetch it in an array, is any of this > > possible? > > imageCreateFromString should work on your un-watermarked image from > the DB. Yeah, perfectly > > When you need the watermark, you can load the watermark from whatever > source you like (file with imagecreatefromjpeg or DB with > imagecreatefromstring) > > You can then merge the two images (original and watermark overlay) in > RAM with imagecopymerge calls, or perhaps playing with an alpha blend > with imagealphablending first. already fixed with an transparent gif. > > Creating that tmp file and writing/reading to it is probably a pretty > serious performance bottleneck that should be addressed for any kind > of heavy traffic or large images. So I noticed, I'm also thinkering with a filsystem (using /tmp) as cache for the merged images. Not really useful since cuz of the few users, but then again, why not try. > > -- > Some people have a "gift" link here. > Know what I want? > I want you to buy a CD from some indie artist. > http://cdbaby.com/browse/from/lynch > Yeah, I get a buck. So? -- --- Børge http://www.arivene.net --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
