Getting image size

[Math BKweb]

Hi Kivy Users and Developpers

I managed to get png picture size with this :

def get_png_size(png_path):
    curdir = dirname(__file__)+'/'
    size = [0,0]   
    f = open( curdir + png_path)
    if f:
        f.seek(12)  # debut du marqueur chaine contenant : ihdr
        ihdr = f.read(4)
        if ihdr == 'IHDR':
            sWidth = f.read(4)
            size[0] = int(sWidth.encode('hex'), 16)
            sHeight = f.read(4)
            size[1] = int(sHeight.encode('hex'),16)
        else:
            print "IHDR tag not found, wrong png format"
        f.close();
    return size

Is this some kind of overbombing ?  I am new to Python, Kivy and mobile devices. Sort of caveman ;)
How can I make it in a cleaner way ?

Thanks for answers
PS: Kivy is great

[Akshay Arora]

if you want to do this in batches what you are doing could be efficient, though you can also do::

    from kivy.uix.image Import Image
   

    img = Image(source='path/to/image')

    print img.texture.size

As a down side this probably might not be as efficient for batch operations. You should look into using PIL Python Imaging Library or similar python libraries depending on your exact needs. I.E if your needs aren't full filled by functions exposed by kivy.

Best Regards

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[Math BKweb]

Great

Thanks Qua-Non, img.texture.size is what I needed.

I have RTFM many times, and still do, but I missed that one.

Best regards

[Mathieu Virbel]

Hi

Kivy is a toolkit for UI. Just having an image size without loading completly it is not in our scope.

Mathieu