znfmail-pythonlang at yahoo
May 14, 2008, 11:35 AM
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addendum Re: working with images (PIL ?)
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I've put together some code to demonstrate what my goal is though looping
pixel by pixel it's rather slow.
import Image
def check_whitespace():
im = Image.open("\\\\server\\vol\\temp\\image.jpg")
size = im.size
i = 0
whitePixCount = 0
while i in range(size[1]):
j = 0
while j in range(size[0]):
p1 = im.getpixel((j,i))
if p1 == (255, 255, 255):
whitePixCount = whitePixCount + 1
if whitePixCount >= 492804: ## ((image dimensions 1404 x
1404) / 4) 25%
return "image no good"
j = j + 1
i = i + 1
print whitePixCount
return "image is good"
print check_whitespace()
"Poppy" <znfmail-pythonlang[at]yahoo.com> wrote in message news:...
>I need to write a program to examine images (JPG) and determine how much
>area is whitespace. We need to throw a returned image out if too much of it
>is whitespace from the dataset we're working with. I've been examining the
>Python Image Library and can not determine if it offers the needed
>functionality. Does anyone have suggestions of other image libraries I
>should be looking at it, or if PIL can do what I need?
>
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addendum Re: working with images (PIL ?)
