def findSpaceLength(Histogram, High):
"""function search expected length of space in line, based on empty columns in histogram, its a simple arithmetic mean of length of empty space"""
summ=0
length=0
number=0
for kol in Histogram:
if kol==0:
length+=1
elif kol>0 and length>0:
if length<High:
summ+=length
length=0
number+=1
else:length=0
if number<>0: return max(summ/number, (1/5)*High) ## in a case if there is no space in line
else: return (1/5)*High
if __name__ == "__main__": #this runs, when code is running as an own program, not as a module
#you can use this section to test your module
f=open("line1.bmp","rb")
Image=LineFrame(f)
Image.blackWhite()
kafels=Image.extractCharacters()
for i in range(0,len(kafels)):
for j in range(0, len(kafels[i])):
kafels[i][j].savePicture(str(i)+"kafel"+str(j)+".bmp","BMP")
# im=LineFrame(new=True)
#im.showPicture()
