原文:https://www.blog.hiyj.cn/article/detail/110
簡筆畫圖片轉字串
效果
結果
原始碼示例:https://github.com/WindSnowLi/My-python-tools/tree/main/Img->Str
# encoding:utf-8
# 簡筆畫圖片轉字串
import cv2
# 字符
char = [' ', '`', '.', '^', ',', ':', '~', '"', '<', '!', 'c', 't', '+', '{', 'i', '7', '?', 'u', '3', '0', 'p',
'w', '4', 'A', '8', 'D', 'X', '%', '#', 'H', 'W', 'M']
# 對應的字符
target = [0, 5, 7, 9, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 59,
61, 63, 66,
68, 70]
def get_index(num):
"""
查找像素值對應字符
:param num:
:return:
"""
if num > 70:
return ' '
for _ in range(0, 5):
if num not in target:
num = num + 1
if num > 70:
return ' '
else:
return char[target.index(num)]
def get_block(img, x, y, block_size):
"""
獲取塊平均像素值
:param img: 圖片
:param x: 起點X軸
:param y: 起點y軸
:param block_size: 塊邊長
:return: 塊平均像素值
"""
rs = 0
for i in range(block_size):
if x + i >= img.shape[0]:
return int(rs / block_size ** 2)
for j in range(block_size):
if y + i >= img.shape[1]:
return int(rs / block_size ** 2)
rs = rs + img[x + i][y + j]
return int(rs / block_size ** 2)
if __name__ == '__main__':
# 讀取圖片
img = cv2.imread('./test.jpg')
# 轉為灰度圖
img = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
height, width = img.shape
# 最大寬度設為192
rate = width / 192
if rate > 1:
width = int(width / rate)
height = int(height / rate)
# 重設為寬度小于192的圖片
img = cv2.resize(img, (width, height))
with open('./pic.txt', 'w') as fp:
step = 4
for i in range(0, height, step):
for j in range(0, width, step):
# 反轉圖片并把像素值設為0~70
value = 70 - int(get_block(img, i, j, step) * 70 / 255)
fp.write(str(get_index(value)) + ' ')
fp.write('\n')
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標籤：AI
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