[PHP] High quality image resizing
Hi, I'm searching for a high quality image resizing facility to be used within PHP in an Unix/Linux environment. Probably everyone will now answer: imagecopyresampled() However, the quality of that functionality doesn't match the expectations of our designers. I've done my tests with PHP4 and GD lib 2.0.33 and everything produces with them got rejected so far. I was also going through the comments on php.net regarding self-written Bicubical algorithm functions, yet their outcome didn't match. My next step was to try ImageMagick. The quality is much better when using the 'mogrify' tool from this package, yet not good enough for my designers. Of course, their expectations are very high because of their daily usage of Photoshop. During my research I was running over http://resizr.lord-lance.com/ which uses an commercial Windows library. Using a commercial package would be completely fine for me, however I just haven't found anything, thus this message. Whether the tool is a PHP library or just an ordinary Unix command doesn't matter, as long as it is usable from within PHP. thanks for any hints, - Markus -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] High quality image resizing
On Fri, March 23, 2007 10:57 am, Markus Fischer wrote: I'm searching for a high quality image resizing facility to be used within PHP in an Unix/Linux environment. Probably everyone will now answer: imagecopyresampled() However, the quality of that functionality doesn't match the expectations of our designers. I've done my tests with PHP4 and GD lib 2.0.33 and everything produces with them got rejected so far. I was also going through the comments on php.net regarding self-written Bicubical algorithm functions, yet their outcome didn't match. My next step was to try ImageMagick. The quality is much better when using the 'mogrify' tool from this package, yet not good enough for my designers. Of course, their expectations are very high because of their daily usage of Photoshop. During my research I was running over http://resizr.lord-lance.com/ which uses an commercial Windows library. Using a commercial package would be completely fine for me, however I just haven't found anything, thus this message. Whether the tool is a PHP library or just an ordinary Unix command doesn't matter, as long as it is usable from within PHP. Perhaps you could run GIMP from the command line to get it to re-size... You should also consider what quality setting you are using to dump out the JPEG. Maybe imagecopyresampled would have been fine if you cranked up the JPEG output quality setting to a higher value... You'll pay for it in filesize, though. -- 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? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] High quality image resizing
Richard Lynch wrote: Perhaps you could run GIMP from the command line to get it to re-size... Thanks .. very interesting idea. I'll see if I can make this feasable. Having the server running without X may be problematic .. not impossible, but probably hard. You should also consider what quality setting you are using to dump out the JPEG. Maybe imagecopyresampled would have been fine if you cranked up the JPEG output quality setting to a higher value... For quality reference I was using the highest (=100) value which, as described, didn't meet the expactations. thanks, - Markus -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] High quality image resizing
On Fri, March 23, 2007 10:57 am, Markus Fischer wrote: I'm searching for a high quality image resizing facility to be used within PHP in an Unix/Linux environment. Probably everyone will now answer: imagecopyresampled() However, the quality of that functionality doesn't match the expectations of our designers. I've done my tests with PHP4 and GD lib 2.0.33 and everything produces with them got rejected so far. I was also going through the comments on php.net regarding self-written Bicubical algorithm functions, yet their outcome didn't match. My next step was to try ImageMagick. The quality is much better when using the 'mogrify' tool from this package, yet not good enough for my designers. Of course, their expectations are very high because of their daily usage of Photoshop. During my research I was running over http://resizr.lord-lance.com/ which uses an commercial Windows library. Using a commercial package would be completely fine for me, however I just haven't found anything, thus this message. Whether the tool is a PHP library or just an ordinary Unix command doesn't matter, as long as it is usable from within PHP. What are their expectations and what is the use for the final output? Also, what are they saying is wrong with the files? (I'm guessing they are to 'fuzzy', that's the main gripe I have with GD. But it doesn't stop me from using it to resize images for a web page, unless you're resizing large images with text down to a 'usable' size.) Are they just being 'designers' and nothing is going to be good enough but photoshop? Maybe PHP/Unix isn't the way to go? Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] High quality image resizing
On Fri, March 23, 2007 10:57 am, Markus Fischer wrote: I'm searching for a high quality image resizing facility to be used within PHP in an Unix/Linux environment. Probably everyone will now answer: imagecopyresampled() However, the quality of that functionality doesn't match the expectations of our designers. I've done my tests with PHP4 and GD lib 2.0.33 and everything produces with them got rejected so far. I was also going through the comments on php.net regarding self-written Bicubical algorithm functions, yet their outcome didn't match. My next step was to try ImageMagick. The quality is much better when using the 'mogrify' tool from this package, yet not good enough for my designers. Of course, their expectations are very high because of their daily usage of Photoshop. During my research I was running over http://resizr.lord-lance.com/ which uses an commercial Windows library. Using a commercial package would be completely fine for me, however I just haven't found anything, thus this message. Whether the tool is a PHP library or just an ordinary Unix command doesn't matter, as long as it is usable from within PHP. What are their expectations and what is the use for the final output? Also, what are they saying is wrong with the files? (I'm guessing they are to 'fuzzy', that's the main gripe I have with GD. But it doesn't stop me from using it to resize images for a web page, unless you're resizing large images with text down to a 'usable' size.) Are they just being 'designers' and nothing is going to be good enough but photoshop? Maybe PHP/Unix isn't the way to go? Ed Yea.. Go mac if you want the best for pics :) and its still unix : -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.17/730 - Release Date: 3/22/2007 7:44 AM -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] High quality image resizing
On Mar 23, 2007, at 8:32 PM, Jake McHenry wrote: On Fri, March 23, 2007 10:57 am, Markus Fischer wrote: I'm searching for a high quality image resizing facility to be used within PHP in an Unix/Linux environment. Probably everyone will now answer: imagecopyresampled() However, the quality of that functionality doesn't match the expectations of our designers. I've done my tests with PHP4 and GD lib 2.0.33 and everything produces with them got rejected so far. I was also going through the comments on php.net regarding self-written Bicubical algorithm functions, yet their outcome didn't match. My next step was to try ImageMagick. The quality is much better when using the 'mogrify' tool from this package, yet not good enough for my designers. Of course, their expectations are very high because of their daily usage of Photoshop. During my research I was running over http://resizr.lord-lance.com/ which uses an commercial Windows library. Using a commercial package would be completely fine for me, however I just haven't found anything, thus this message. Whether the tool is a PHP library or just an ordinary Unix command doesn't matter, as long as it is usable from within PHP. What are their expectations and what is the use for the final output? Also, what are they saying is wrong with the files? (I'm guessing they are to 'fuzzy', that's the main gripe I have with GD. But it doesn't stop me from using it to resize images for a web page, unless you're resizing large images with text down to a 'usable' size.) Are they just being 'designers' and nothing is going to be good enough but photoshop? Maybe PHP/Unix isn't the way to go? Ed Yea.. Go mac if you want the best for pics :) and its still unix : That's the only reason I'm on a mac... instead of linux like I'd rather be. If you don't *have* to be using php/unix, there are some nice hooks into photoshop either through javascript, applescript or (at least with ps7 years ago) vb.net. I've done some automation through that before and had very good results resizing and archiving images for a professional photo lab. Maybe a web service into a mac box with photoshop? Really depends on what you're trying to do and what your setup is. Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
