The key idea here is the partial image descriptor
VIPS(VASARI Image Processing System) 是近几年逐渐兴起的针对大图像数据高效处理的开源库,下面给出一个表格显示出其相对于目前的一些其他开源库,针对同一组5000
Software | Run time (secs real) | Memory (peak RSS MB) | Times slower |
---|---|---|---|
VIPS C/C++ 8.1 | 0.20 | 43 | 1.0 |
Python VIPS 8.1 | 0.30 | 52 | 1.5 |
VIPS command-line 8.1 | 0.55 | 40 | 2.4 |
VIPS C/C++ 8.1, JPEG images | 0.38 | 59 | 2.7 |
ymagine 0.7.0 | 1.07 | 2.7 | 2.8 (compared to vips-c JPEG) |
GraphicsMagick 1.3.20 | 0.67 | 492 | 3.4 |
sips 10.4.4 | 0.74 (est.) | 268 | 3.7 |
ImageMagick 6.8.9-9 | 0.78 | 484 | 3.9 |
VIPS nip2 8.1 | 0.79 | 78 | 4.0 |
RMagick 2.15.2 (ImageMagick 6.8.9) | 0.87 | 684 | 4.4 |
NetPBM 10.0 | 0.93 | 76 | 4.7 |
Pillow 2.7.0 | 0.93 | 207 | 4.7 |
OpenCV 2.4.9 | 1.13 | 206 | 5.7 |
libgd 2.1.1 | 2.34 | 186 | 6.1 (compared to vips-c JPEG) |
Imlib2 1.4.7 | 1.53 | 250 | 7.7 |
ExactImage 0.8.9 | 1.54 | 130 | 7.7 |
FreeImage 3.15.4 (incomplete) | 1.63 | 183 | 8.1 |
gmic 1.5.7.1 | 1.87 | 700 | 9.35 |
ImageScience 1.2.6 (based on FreeImage 3.15.4, incomplete) | 1.9 | 267 | 9.5 |
OpenImageIO 1.3.12 | 2.79 | 811 | 14 |
GEGL 0.2 | 16.2 | 410 | 43 (compared to vips-c JPEG) |
Octave 3.8 | 30 (est.) | 8500 (est.) | 200 |
测试环境:
E5-1650 @ 3.20GHz (HP workstation), Ubuntu 15.04
对应的Memory vs. time
曲线图如下:
可以看出,相比于其它库,vips
处理速度更快,而且消耗的内存更小,但是比较麻烦的是配置比较麻烦…
提供一个下载链接: http://www.vips.ecs.soton.ac.uk/supported/current/win32/