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manga.py

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# -*- coding: utf-8 -*-

import cv2

import numpy as np

def main():

th1, th2 = 60, 160 # 3値化の閾値

gray = cv2.imread("test.png",0) # 入力画像をグレースケールで取得

screen = cv2.imread("screen.png",0) # スクリーントーンの取得

screen = cv2.resize(screen,(gray.shape[1],gray.shape[0])) # スクリーントーン画像を入力画像と同じ大きさにリサイズ

# エッジ検出と色反転

edge = 255 - cv2.Canny(gray, 80, 120)

# 画像の3値化

gray[gray <= th1] = 0

gray[gray >= th2] = 255

gray[ np.where((gray > th1)&(gray < th2)) ] = screen[ np.where((gray > th1)&(gray < th2)) ]

# 3値画像とエッジ画像を合わせる

gray = cv2.bitwise_and(gray, edge)

cv2.imshow("Manga",gray) # 結果を表示

cv2.waitKey(0)

cv2.destroyAllWindows()

if __name__ == '__main__':

main()