我想用python清除图像上的黑点。因为我需要对图像文件进行 ocr 处理。
我将图像转换为单色，所以我得到了这个图像； http://s23.postimg.org/bulq1dmt3/ba210.png
所以，我想删除黑点；
def temizleHips2 (x,y,w,h,listei):
koordinat=list(nfind(x,y))
x = int(x)
y = int(y)
w = int(w)
h = int(h)
i=0
a=0
m=4
b=0
for i in xrange(8):
b=0
k=koordinat[i]
x2,y2=koordinatparse(k)
if x2>=0 and y2>=0 and x2<w and y2<h:
if listei[x2,y2]==0:
a=a+1
if a>2:
return 0
else:
return 255
def ultratemizle(dosya):
# 290a.tif
image_file = dosya
img = Image.open(image_file)
# img=img.convert('1')
# img.save("209i.tif","TIFF")
datas = list(img.getdata())
newData = list()
temizlemes = list()
temizlemeson = list()
siyah =0
beyaz =0
for each in datas:
if each == 255:
beyaz = beyaz +1
else:
siyah = siyah+1
if siyah > beyaz :
for each in datas:
if each == 255:
each=0
elif each==0:
each = 255
newData.append(each)
img.putdata(newData)
x1,y1=0,0
tmp_isim = "a"+dosya
img.save("b"+tmp_isim, "TIFF")
img = Image.open(tmp_isim)
imgmat = img.load()
x,y= img.size
x1=0
y1=0
deger =0
temizlemes =[]
for x1 in range (0,x):
for y1 in range(0,y):
if imgmat[x1,y1] == 0:
deger = temizleHips(x1,y1,x,y,imgmat)
temizlemes.append(deger)
if deger != imgmat[x1,y1]:
print "noktalar : "+str(x1)+","+str(y1)+" ilk : "+str(imgmat[x1,y1])+" son: "+str(deger)
else:
temizlemes.append(imgmat[x1,y1])
img.putdata(temizlemes)
img.show()
img.save(tmp_isim,"TIFF")
tem = img.load()
我得到这张图片； http://s16.postimg.org/wc97bdzdt/a356.png 但是，我想在第二张图片上清除黑色像素周围的“s”。我找不到问题出在哪里
