Created
December 21, 2013 13:25
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画像を減色して保存するスクリプト
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#!/usr/bin/env python | |
# -*- coding: utf-8 -*- | |
import cv2 | |
import sys | |
import numpy as np | |
TARGET_DIR = '../dataset/bijin/' | |
############################################################################## | |
# @brief 入力画像を減色した画像を返す | |
# @param numpy.ndarray img 画像ファイル | |
# @return numpy.ndarray d_img 減色画像ファイル | |
############################################################################## | |
def decleaseColor(img): | |
print type(img) | |
rgb = cv2.split(img) | |
for col in rgb: | |
idx = np.where(col < 64) | |
col[idx] = 32 | |
idx = np.where((64 <= col) & (col < 128)) | |
col[idx] = 96 | |
idx = np.where((128 <= col) & (col < 196)) | |
col[idx] = 160 | |
idx = np.where(196 <= col) | |
col[idx] = 224 | |
d_img = cv2.merge(rgb) | |
return d_img | |
if __name__ == '__main__': | |
if len(sys.argv) < 2: | |
print 'ERROR : input file name' | |
sys.exit(-1) | |
img = cv2.imread(TARGET_DIR + sys.argv[1]) | |
# RGBを4*4*4=64色に減色 | |
d_img = decleaseColor(img) | |
cv2.imwrite('d_' + sys.argv[1], d_img) |
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