This project has implementation for below algorithms:
- Blending of two images
- Rotation without interpolation
- Rotation with linear interpolation
- Subsampling by factor of 2
Every algorithm is tested with unittest for three different categories:
- Two image sizes (large and small)
- Two data types (uint8 and float)
- Two color types (gray and RGB)
So basically there are eight test cases per algorithm.
We have three implementation of these algorithms for benchmarking:
- Python Numpy library
- Cython
- Cython with multi-cpu (not yet available)
- CUDA with Cython (Not available. Work needs to be done to write compiler wrapper for nvcc, to be called from python.
The
setup.pyfile will be updated soon...)
🚧
Once you run benchmark.py the cython code will be compiled and for every * .pyx a *.html file will be generated. This *.html file will have the info
about how well the pycthon code is converted to C.
- Windows 10
- CUDA 8.0
- PyCuda 2016.1.2
conda install numpy
conda install cython
conda install pandas
pip install pycuda- To run the code just type. Compilation of c code for cython will be done by the pyximport utility when you run the
benchmark.pyfile
git clone https://github.com/praveenneuron/Python-Cython-CUDA.git
python benchmark.py- The unittest framework will run and dump the results in report folder
- Images with test_image in their name are the output of the algorithm
- Other images have barplots that will compare numpy and cython implementation
Below are the results (Smaller the better as time taken is the y axis)
The code was run for 100 iterations you can adjust it with _ITER_NUM variable.
- Blending of two images
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- Rotate with no interpolation
 |
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- Rotate with linear interpolation
 |
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- Subsampling by factor of 2
 |
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- Blending of two images
- Rotate with no interpolation
- Rotate with linear interpolation
- Subsampling by factor of 2
I:\Anaconda3\python.exe D:/Github/Python-Cython-CUDA/benchmark.py
----------------------------------------------------------------------
*** Blending of gray images ***
----------------------------------------------------------------------
test_image_grey_large_float (__main__.TestBlendingGray) ...
Time taken Numpy : 0.27251648902893066
Time taken Cython : 0.08499431610107422
Time taken CUDA : Not available ....
...........ok
test_image_grey_large_uint8 (__main__.TestBlendingGray) ...
Time taken Numpy : 0.13849925994873047
Time taken Cython : 0.02300095558166504
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_float (__main__.TestBlendingGray) ...
Time taken Numpy : 0.043999671936035156
Time taken Cython : 0.014496088027954102
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_uint8 (__main__.TestBlendingGray) ...
Time taken Numpy : 0.03500032424926758
Time taken Cython : 0.005500078201293945
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 15.218s
OK
----------------------------------------------------------------------
*** Blending of RGB images ***
----------------------------------------------------------------------
test_image_rgb_large_float (__main__.TestBlendingRGB) ...
Time taken Numpy : 0.5374839305877686
Time taken Cython : 0.2605001926422119
Time taken CUDA : Not available ....
...........ok
test_image_rgb_large_uint8 (__main__.TestBlendingRGB) ...
Time taken Numpy : 0.4310019016265869
Time taken Cython : 0.06849908828735352
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_float (__main__.TestBlendingRGB) ...
Time taken Numpy : 0.13401365280151367
Time taken Cython : 0.04648733139038086
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_uint8 (__main__.TestBlendingRGB) ...
Time taken Numpy : 0.10849499702453613
Time taken Cython : 0.017495393753051758
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 14.844s
OK
----------------------------------------------------------------------
*** Rotation of gray images (with NN-interpolation) ***
----------------------------------------------------------------------
test_image_grey_large_float (__main__.TestRotateNNGray) ...
Time taken Numpy : 1.5130414962768555
Time taken Cython : 0.33399128913879395
Time taken CUDA : Not available ....
...........ok
test_image_grey_large_uint8 (__main__.TestRotateNNGray) ...
Time taken Numpy : 1.301123857498169
Time taken Cython : 0.16699862480163574
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_float (__main__.TestRotateNNGray) ...
Time taken Numpy : 0.3525111675262451
Time taken Cython : 0.07950067520141602
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_uint8 (__main__.TestRotateNNGray) ...
Time taken Numpy : 0.29999709129333496
Time taken Cython : 0.03302001953125
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 24.842s
OK
----------------------------------------------------------------------
*** Rotation of RGB images (with NN-interpolation) ***
----------------------------------------------------------------------
test_image_rgb_large_float (__main__.TestRotateNNRGB) ...
Time taken Numpy : 5.865823984146118
Time taken Cython : 0.5754995346069336
Time taken CUDA : Not available ....
...........ok
test_image_rgb_large_uint8 (__main__.TestRotateNNRGB) ...
Time taken Numpy : 4.095231533050537
Time taken Cython : 0.25600290298461914
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_float (__main__.TestRotateNNRGB) ...
Time taken Numpy : 1.4641034603118896
Time taken Cython : 0.17099690437316895
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_uint8 (__main__.TestRotateNNRGB) ...
Time taken Numpy : 0.9620048999786377
Time taken Cython : 0.0559847354888916
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 30.920s
OK
----------------------------------------------------------------------
*** Rotation of gray images (with Linear-interpolation) ***
----------------------------------------------------------------------
test_image_grey_large_float (__main__.TestRotateLinGray) ...
Time taken Numpy : 1.8127481937408447
Time taken Cython : 0.5325160026550293
Time taken CUDA : Not available ....
...........ok
test_image_grey_large_uint8 (__main__.TestRotateLinGray) ...
Time taken Numpy : 1.5821540355682373
Time taken Cython : 0.35249972343444824
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_float (__main__.TestRotateLinGray) ...
Time taken Numpy : 0.4364912509918213
Time taken Cython : 0.10949945449829102
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_uint8 (__main__.TestRotateLinGray) ...
Time taken Numpy : 0.3880960941314697
Time taken Cython : 0.06500482559204102
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 26.101s
OK
----------------------------------------------------------------------
*** Rotation of RGB images (with Linear-interpolation) ***
----------------------------------------------------------------------
test_image_rgb_large_float (__main__.TestRotateLinRGB) ...
Time taken Numpy : 6.48515772819519
Time taken Cython : 1.5131480693817139
Time taken CUDA : Not available ....
...........ok
test_image_rgb_large_uint8 (__main__.TestRotateLinRGB) ...
Time taken Numpy : 4.950857877731323
Time taken Cython : 0.8226222991943359
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_float (__main__.TestRotateLinRGB) ...
Time taken Numpy : 1.583146095275879
Time taken Cython : 0.33049964904785156
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_uint8 (__main__.TestRotateLinRGB) ...
Time taken Numpy : 1.3056743144989014
Time taken Cython : 0.18750357627868652
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 34.996s
OK
----------------------------------------------------------------------
*** Sub sampling of gray images ***
----------------------------------------------------------------------
test_image_grey_large_float (__main__.TestSubSamplingGray) ...
Time taken Numpy : 0.0879828929901123
Time taken Cython : 0.021017074584960938
Time taken CUDA : Not available ....
...........ok
test_image_grey_large_uint8 (__main__.TestSubSamplingGray) ...
Time taken Numpy : 0.0345001220703125
Time taken Cython : 0.007493734359741211
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_float (__main__.TestSubSamplingGray) ...
Time taken Numpy : 0.020996809005737305
Time taken Cython : 0.004999637603759766
Time taken CUDA : Not available ....
...........ok
test_image_grey_small_uint8 (__main__.TestSubSamplingGray) ...
Time taken Numpy : 0.008991241455078125
Time taken Cython : 0.001497030258178711
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 7.690s
OK
----------------------------------------------------------------------
*** Sub sampling of RGB images ***
----------------------------------------------------------------------
test_image_rgb_large_float (__main__.TestSubSamplingRGB) ...
Time taken Numpy : 0.2674999237060547
Time taken Cython : 0.06250166893005371
Time taken CUDA : Not available ....
...........ok
test_image_rgb_large_uint8 (__main__.TestSubSamplingRGB) ...
Time taken Numpy : 0.1490623950958252
Time taken Cython : 0.029485464096069336
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_float (__main__.TestSubSamplingRGB) ...
Time taken Numpy : 0.06699943542480469
Time taken Cython : 0.01549673080444336
Time taken CUDA : Not available ....
...........ok
test_image_rgb_small_uint8 (__main__.TestSubSamplingRGB) ...
Time taken Numpy : 0.03750109672546387
Time taken Cython : 0.006997346878051758
Time taken CUDA : Not available ....
...........ok
----------------------------------------------------------------------
Ran 4 tests in 7.633s
OK
Process finished with exit code 0