I tried this approach of serving up resized pics on-the-fly before (using PHP). It seemed such a good idea because I could serve up pics of any size. It worked, but there was a performance hit and the server was not happy. I then introduced a way that the pics would be resized the first time requested and thereafter they would be 'cached' for subsequent requests. This also worked but again led to reliability problems which periodically required my attention. I also ended up with huge numbers of pics in my cache dir and the system was really slow.
I eventually decided that there were 3 standard sizes that I could use and now I create those sizes on uploading my pics. It is a much better solution for me. It is much faster to serve the pics and with almost zero problems and I am very happy with it. I also use the 'upload_separate' parameter to keep my dir sizes small. Could you also limit yourself to a few standard sizes? If so, I suggest you take my route. On Friday, June 29, 2012 1:16:55 AM UTC+1, ctrlSoft wrote: > > hi i would like to implement in my app a feature , create thumbs runtime > like in picasa or imgur > original image > http://i.imgur.com/E9az6.jpg > thumb croped > http://i.imgur.com/E9az6*b*.jpg <http://i.imgur.com/E9az6.jpg> > > or in picasa > original image: > > https://lh3.googleusercontent.com/-iNUvq0K9l24/Tyr6IfaT76I/AAAAAAAAArI/C_9RUy_o38A/s634/SecureData-logo-design.gif > > thumb croped > > https://lh3.googleusercontent.com/-iNUvq0K9l24/Tyr6IfaT76I/AAAAAAAAArI/C_9RUy_o38A/ > *s256-c*/SecureData-logo-design.gif<https://lh3.googleusercontent.com/-iNUvq0K9l24/Tyr6IfaT76I/AAAAAAAAArI/C_9RUy_o38A/s256-c/SecureData-logo-design.gif> > > > https://lh3.googleusercontent.com/-iNUvq0K9l24/Tyr6IfaT76I/AAAAAAAAArI/C_9RUy_o38A/ > *s128-c*/SecureData-logo-design.gif<https://lh3.googleusercontent.com/-iNUvq0K9l24/Tyr6IfaT76I/AAAAAAAAArI/C_9RUy_o38A/s256-c/SecureData-logo-design.gif> > > .... > > i want to save just original image and retrieve when i need different size > of thumbnail, what is the best way? any sugestions? >
