Sudoku

Did you every get sick of solving Sudoku problems at school?

This project helps you solve it by uploading Sudoku image.

Dependency

• Python 3
• Opencv
• Keras
• Numpy
• Matplotlib

Features

Input Image

After MorphologyEx

After Normalization

Adaptive Threshold

Find Contours

Masked

Find grid by using Sobel, MorphologyEx and find Contours

Flatten Image by using warpPerspective()

Crop Cell Numbers

Model

model = Sequential()
model.add(Conv2D(32, kernel_size=(3, 3),activation='relu',input_shape=(shape, shape, channel)))
model.add(Conv2D(64, (3, 3), activation='relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))
model.add(Dropout(0.25))

model.add(Flatten())
model.add(Dense(128, activation='relu'))
model.add(Dropout(0.5))
model.add(Dense(num_classes, activation='softmax'))


#   학습 방법 설정
model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy'])

#   학습 시작
model.fit(x_train, y_train, batch_size=128, epochs=12, verbose=1, validation_data=(x_test, y_test))

Result