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+#!/usr/bin/python
+# The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
+#
+# This example shows how to run a CNN based face detector using dlib. The
+# example loads a pretrained model and uses it to find faces in images. The
+# CNN model is much more accurate than the HOG based model shown in the
+# face_detector.py example, but takes much more computational power to
+# run, and is meant to be executed on a GPU to attain reasonable speed.
+#
+# You can download the pre-trained model from:
+# http://dlib.net/files/mmod_human_face_detector.dat.bz2
+#
+# The examples/faces folder contains some jpg images of people. You can run
+# this program on them and see the detections by executing the
+# following command:
+# ./cnn_face_detector.py mmod_human_face_detector.dat ../examples/faces/*.jpg
+#
+#
+# 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
+# or
+# python setup.py install --yes USE_AVX_INSTRUCTIONS --yes DLIB_USE_CUDA
+# if you have a CPU that supports AVX instructions, you have an Nvidia GPU
+# and you have CUDA installed since this makes things run *much* faster.
+#
+# 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 scikit-image which can be installed
+# via the command:
+# pip install scikit-image
+# Or downloaded from http://scikit-image.org/download.html.
+
+import sys
+import dlib
+from skimage import io
+
+if len(sys.argv) < 3:
+ print(
+ "Call this program like this:\n"
+ " ./cnn_face_detector.py mmod_human_face_detector.dat ../examples/faces/*.jpg\n"
+ "You can get the mmod_human_face_detector.dat file from:\n"
+ " http://dlib.net/files/mmod_human_face_detector.dat.bz2")
+ exit()
+
+cnn_face_detector = dlib.cnn_face_detection_model_v1(sys.argv[1])
+win = dlib.image_window()
+
+for f in sys.argv[2:]:
+ print("Processing file: {}".format(f))
+ img = io.imread(f)
+ # The 1 in the second argument indicates that we should upsample the image
+ # 1 time. This will make everything bigger and allow us to detect more
+ # faces.
+ dets = cnn_face_detector(img, 1)
+ '''
+ This detector returns a mmod_rectangles object. This object contains a list of mmod_rectangle objects.
+ These objects can be accessed by simply iterating over the mmod_rectangles object
+ The mmod_rectangle object has two member variables, a dlib.rectangle object, and a confidence score.
+
+ It is also possible to pass a list of images to the detector.
+ - like this: dets = cnn_face_detector([image list], upsample_num, batch_size = 128)
+
+ In this case it will return a mmod_rectangless object.
+ This object behaves just like a list of lists and can be iterated over.
+ '''
+ print("Number of faces detected: {}".format(len(dets)))
+ for i, d in enumerate(dets):
+ print("Detection {}: Left: {} Top: {} Right: {} Bottom: {} Confidence: {}".format(
+ i, d.rect.left(), d.rect.top(), d.rect.right(), d.rect.bottom(), d.confidence))
+
+ rects = dlib.rectangles()
+ rects.extend([d.rect for d in dets])
+
+ win.clear_overlay()
+ win.set_image(img)
+ win.add_overlay(rects)
+ dlib.hit_enter_to_continue()