In my last question I asked whether there was a better way to rotate images than I had thought of. I ended up discovering jpegtran and have since found libjpeg-turbo.
Now I am looking for a better way to resize the images (jpegs) than imagemagick and graphicsmagick.
Is there a specialized commandline tool to resize the images in a more efficient way than imagemagick or graphicsmagick? Maybe the resizing can be done on the GPU using opencl or opengl?
The provided hardware is the same as in the other post:
- Intel Atom D525 (1,8 Ghz)
- Mobility Radeon HD 5430 Series
- 4 GB of RAM
- SSD Vertility 3
Check this link out: http://leocharre.com/articles/faster-image-resizing-in-linux/
In particular the author mentions that imgresize is faster than imagemagick, and epeg is extremely fast.
epeg (http://www.systhread.net/texts/200507epeg1.php) seems quite well documented for generating thumbnails. If the quality is good enough, this could be the solution.