benchmark_imsave

#!/usr/bin/env python
import imageio
print('imageio version ', imageio.__version__)
import cv2
print('cv2 version ', cv2.__version__)
import skimage
print('skimage version ', skimage.__version__)


from skimage import data
import os
import time

from skimage import io

os.makedirs('imageio', exist_ok=True)
os.makedirs('skimage', exist_ok=True)
os.makedirs('cv2', exist_ok=True)

before = time.perf_counter()
for i in range(40):
    imageio.imwrite('imageio/' + str(i) + 'leveldefault.png', data.camera())
after = time.perf_counter()
print('imageio png (default compression level): ', after - before)

before = time.perf_counter()
for i in range(40):
    imageio.imwrite('imageio/' + str(i) + '-level3.png', data.camera(), compress_level=3)
after = time.perf_counter()
print('imageio png (3 compression level): ', after - before)

before = time.perf_counter()
for i in range(40):
    imageio.imwrite('imageio/' + str(i) + '-level0.png', data.camera(), compress_level=0)
after = time.perf_counter()
print('imageio png (0 compression level): ', after - before)

before = time.perf_counter()
for i in range(40):
    io.imsave('skimage/' + str(i) + 'imageio.png', data.camera(), plugin='imageio')
after = time.perf_counter()
print('skimage png imageio plugin: ', after - before)

before = time.perf_counter()
for i in range(40):
    io.imsave('skimage/' + str(i) + 'imageio.png', data.camera(), plugin='imageio', compress_level=3)
after = time.perf_counter()
print('skimage png imageio plugin, compresslevel=3: ', after - before)


before = time.perf_counter()
for i in range(40):
    io.imsave('skimage/' + str(i) + 'pil.png', data.camera(), plugin='pil')
after = time.perf_counter()
print('skimage png pil plugin: ', after - before)

before = time.perf_counter()
for i in range(40):
    cv2.imwrite('cv2/' + str(i) + '.png', data.camera())
after = time.perf_counter()
print('cv2 png: ', after - before)

before = time.perf_counter()
for i in range(40):
    imageio.imwrite('imageio/' + str(i) + '.jpg', data.camera())
after = time.perf_counter()
print('imageio jpg: ', after - before)

before = time.perf_counter()
for i in range(40):
    cv2.imwrite('cv2/' + str(i) + '.jpg', data.camera())
after = time.perf_counter()
print('cv2 jpg: ', after - before)

before = time.perf_counter()
for i in range(40):
    io.imsave('skimage/' + str(i) + 'imageio.jpg', data.camera(), plugin='imageio')
after = time.perf_counter()
print('skimage jpg imageio plugin: ', after - before)

before = time.perf_counter()
for i in range(40):
    io.imsave('skimage/' + str(i) + 'pil.jpg', data.camera(), plugin='pil')
after = time.perf_counter()
print('skimage jpg pil plugin: ', after - before)