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import numpy | |
from scipy.ndimage.interpolation import map_coordinates | |
from scipy.ndimage.filters import gaussian_filter | |
def elastic_transform(image, alpha, sigma, random_state=None): | |
"""Elastic deformation of images as described in [Simard2003]_. | |
.. [Simard2003] Simard, Steinkraus and Platt, "Best Practices for | |
Convolutional Neural Networks applied to Visual Document Analysis", in |
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#!/bin/sh | |
# Need at least an outfile and two images for this command to make sense. | |
if [ $# -lt 3 ] | |
then | |
echo USAGE: "$0" OUTFILE IMAGES... | |
echo Create simple slideshow video with blend effect between images. | |
echo | |
echo OUTFILE is video file to create, .mkv extension is recommended. | |
echo IMAGES is a sequence of images for the slideshow. |
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# Hello, and welcome to makefile basics. | |
# | |
# You will learn why `make` is so great, and why, despite its "weird" syntax, | |
# it is actually a highly expressive, efficient, and powerful way to build | |
# programs. | |
# | |
# Once you're done here, go to | |
# http://www.gnu.org/software/make/manual/make.html | |
# to learn SOOOO much more. |
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# autoloess.R: compute loess metaparameters automatically | |
# Kyle Gorman <gormanky@ohsu.edu> | |
aicc.loess <- function(fit) { | |
# compute AIC_C for a LOESS fit, from: | |
# | |
# Hurvich, C.M., Simonoff, J.S., and Tsai, C. L. 1998. Smoothing | |
# parameter selection in nonparametric regression using an improved | |
# Akaike Information Criterion. Journal of the Royal Statistical | |
# Society B 60: 271–293. |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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