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gamma.py

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

import cv2

import numpy as np

def main():

# 画像の取得

im = cv2.imread("fubuki.png")

# ガンマ補正

value = 0.7 # パラメータ

im = cv2.pow(im/255.0, value)

gamma = np.uint8(im*255)

# 結果表示

cv2.imshow("Gamma",gamma)

cv2.waitKey(0) # キー入力待機

cv2.destroyAllWindows() # ウィンドウ破棄

if __name__ == "__main__":

main()