Long ago user Voltron and Denes has done this using the PIL module.
Here is an extract of a previous post:
Try the following code as your db.py model and insert a new image
using the appadmin, this works for me (v369 & PIL 1.1.6 on windows):
import Image
class IS_IMAGE(object):
def __init__(self,error_message='not accepted!'):
self.maxw=300
self.maxh=200
self.em=error_message
def __call__(self,value):
print value.__class__
print value.filename
print value.type
# try:
img=Image.open(value.file)
# except:
# return(value,self.em)
print img.format,img.size
if img.format in ['JPG','JPEG','jpg','jpeg']:
imgsize=img.size
if imgsize[0]>self.maxw:
return(value,self.em)
elif imgsize[1]>self.maxh:
return(value,self.em)
return(value,None)
return(value,self.em)
On Jun 26, 12:21 pm, annet <annet.verm...@gmail.com> wrote:
> In my application I allow users to upload images. I would like to
> validate the images on size (xx KB) and dimensions (width xxx and
> height xxx). I wonder whether any one has done this before, and what
> is the best way to proceed.
>
> Kind regards,
>
> Annet.
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