jupyter notebook 完成图片转化为字符图
from PIL import Image
ASCII_Char ="? "
def RGB_Char(r,g,b,alpha=256):
if alpha == 0:
return
length = len(ASCII_Char)
gray = int(0.2126*r+0.7152*g+0.0722*b)
unit=(256.0+1)/length
idx = int(gray/unit)
return ASCII_Char[idx]
def img2cahr(img,savepath):
txt =" "
width,height = img.size
for i in range(height):
line =" "
for j in range(width):
pos =(j,i)
R,G,B ,A= img.getpixel(pos)
line+=RGB_Char(R,G,B,A)
txt =txt+line+"\n"
with open(savepath,"w+",encoding="utf-8") as f:
f.write(txt)
def preprocess(img_path,delta =100):
img =Image.open(img_path)
width ,height =img.size
width =width/2
height =height/2
if width>height:
max =width
else:
max =height
scale =max/delta
width,height = int(width/scale),int(height/scale)
img =img.resize((width,height))
return img
img = preprocess("F:libowu.png")
img2cahr(img,"F:/wei/LIBOWU.txt")