import?numpy?as?np
import?pickle
import?cv2
import?os
from?keras?import?optimizers
from?keras.models?import?Sequential
from?keras.layers?import?Dense
from?keras.layers?import?Dropout
from?keras.layers?import?Flatten
from?keras.layers.convolutional?import?Conv2D
from?keras.layers.convolutional?import?MaxPooling2D
from?keras.utils?import?np_utils
from?keras.callbacks?import?ModelCheckpoint
from?keras?import?backend?as?K
K.set_image_dim_ordering（‘tf‘）

def?get_image_size（）:
	img?=?cv2.imread（‘gestures/0/100.jpg‘?0）
	return?img.shape

def?get_num_of_classes（）:
	return?len（os.listdir（‘gestures/‘））

image_x?image_y?=?get_image_size（）

def?cnn_model（）:
	num_of_classes?=?get_num_of_classes（）
	model?=?Sequential（）
	model.add（Conv2D（32?（55）?input_shape=（image_x?image_y?1）?activation=‘relu‘））
	model.add（MaxPooling2D（pool_size=（2?2）?strides=（2?2）?padding=‘same‘））
	model.add（Conv2D（64?（55）?activation=‘relu‘））
	model.add（MaxPooling2D（pool_size=（5?5）?strides=（5?5）?padding=‘same‘））
	model.add（Flatten（））
	model.add（Dense（1024?activation=‘relu‘））
	model.add（Dropout（0.4））
	model.add（Dense（num_of_classes?activation=‘softmax‘））
	sgd?=?optimizers.SGD（lr=1e-4）
	model.compile（loss=‘categorical_crossentropy‘?optimizer=sgd?metrics=[‘a(chǎn)ccuracy‘]）
	filepath=“cnn_model_keras2.h5“
	checkpoint1?=?ModelCheckpoint（filepath?monitor=‘val_acc‘?verbose=1?save_best_only=True?mode=‘max‘）
	#checkpoint2?=?ModelCheckpoint（filepath?monitor=‘val_loss‘?verbose=1?save_best_only=True?mode=‘min‘）
	callbacks_list?=?[checkpoint1]
	return?model?callbacks_list

def?train（）:
	with?open（“train_images“?“rb“）?as?f:
		train_images?=?np.array（pickle.load（f））
	with?open（“train_labels“?“rb“）?as?f:
		train_labels?=?np.array（pickle.load（f）?dtype=np.int32）

	with?open（“test_images“?“rb“）?as?f:
		test_images?=?np.array（pickle.load（f））
	with?open（“test_labels“?“rb“）?as?f:
		test_labels?=?np.array（pickle.load（f）?dtype=np.int32）

	train_images?=?np.reshape（train_images?（train_images.shape[0]?image_x?image_y?1））
	test_images?=?np.reshape（test_images?（test_images.shape[0]?image_x?image_y?1））
	train_labels?=?np_utils.to_categorical（train_labels）
	test_labels?=?np_utils.to_categorical（test_labels）

	model?callbacks_list?=?cnn_model（）
	model.fit（train_images?train_labels?validation_data=（test_images?test_labels）?epochs=50?batch_size=100?callbacks=callbacks_list）
	scores?=?model.evaluate（test_images?test_labels?verbose=0）
	print（“CNN?Error:?%.2f%%“?%?（100-scores[1]*100））
	#model.save（‘cnn_model_keras2.h5‘）

train（）

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-03-04?17:49??Simple-OpenCV-Calculator-master\
?????文件????????4125??2018-03-04?17:49??Simple-OpenCV-Calculator-master\README.md
?????文件????????2541??2018-03-04?17:49??Simple-OpenCV-Calculator-master\cnn_keras.py
?????文件?????8950256??2018-03-04?17:49??Simple-OpenCV-Calculator-master\cnn_model_keras2.h5
?????文件????????3716??2018-03-04?17:49??Simple-OpenCV-Calculator-master\create_gestures.py
?????文件?????????900??2018-03-04?17:49??Simple-OpenCV-Calculator-master\display_all_gestures.py
?????文件???????16384??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gesture_db.db
?????目錄???????????0??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\
?????目錄???????????0??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\10.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\100.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1000.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1001.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1002.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1003.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1004.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1005.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1006.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1007.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1008.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1009.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\101.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1010.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1011.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1012.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1013.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1014.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1015.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1016.jpg
?????文件?????????369??2018-03-04?17:49??Simple-OpenCV-Calculator-master\gestures\0\1017.jpg
............此處省略15594個(gè)文件信息