dlib/python_examples/face_jitter.py
Davis King ec83abf619 Removed notes about using --yes USE_AVX_INSTRUCTIONS when building python
interface since AVX availability is now detected automatically by cmake.
2018-05-22 07:01:09 -04:00

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Python
Executable File

#!/usr/bin/python
# The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
#
# This example shows how faces were jittered and augmented to create training
# data for dlib's face recognition model. It takes an input image and
# disturbs the colors as well as applies random translations, rotations, and
# scaling.
#
# COMPILING/INSTALLING THE DLIB PYTHON INTERFACE
# You can install dlib using the command:
# pip install dlib
#
# Alternatively, if you want to compile dlib yourself then go into the dlib
# root folder and run:
# python setup.py install
#
# Compiling dlib should work on any operating system so long as you have
# CMake installed. On Ubuntu, this can be done easily by running the
# command:
# sudo apt-get install cmake
#
# Also note that this example requires Numpy which can be installed
# via the command:
# pip install numpy
#
# The image file used in this example is in the public domain:
# https://commons.wikimedia.org/wiki/File:Tom_Cruise_avp_2014_4.jpg
import sys
import dlib
def show_jittered_images(window, jittered_images):
'''
Shows the specified jittered images one by one
'''
for img in jittered_images:
window.set_image(img)
dlib.hit_enter_to_continue()
if len(sys.argv) != 2:
print(
"Call this program like this:\n"
" ./face_jitter.py shape_predictor_5_face_landmarks.dat\n"
"You can download a trained facial shape predictor from:\n"
" http://dlib.net/files/shape_predictor_5_face_landmarks.dat.bz2\n")
exit()
predictor_path = sys.argv[1]
face_file_path = "../examples/faces/Tom_Cruise_avp_2014_4.jpg"
# Load all the models we need: a detector to find the faces, a shape predictor
# to find face landmarks so we can precisely localize the face
detector = dlib.get_frontal_face_detector()
sp = dlib.shape_predictor(predictor_path)
# Load the image using dlib
img = dlib.load_rgb_image(face_file_path)
# Ask the detector to find the bounding boxes of each face.
dets = detector(img)
num_faces = len(dets)
# Find the 5 face landmarks we need to do the alignment.
faces = dlib.full_object_detections()
for detection in dets:
faces.append(sp(img, detection))
# Get the aligned face image and show it
image = dlib.get_face_chip(img, faces[0], size=320)
window = dlib.image_window()
window.set_image(image)
dlib.hit_enter_to_continue()
# Show 5 jittered images without data augmentation
jittered_images = dlib.jitter_image(image, num_jitters=5)
show_jittered_images(window, jittered_images)
# Show 5 jittered images with data augmentation
jittered_images = dlib.jitter_image(image, num_jitters=5, disturb_colors=True)
show_jittered_images(window, jittered_images)