CODEWITHSUNDEEP
pythondjangopython-imaging-library
steph
steph

Reputation: 701

Save Uploaded Image as PNG

In my Django app, Users can upload images. I want to save every uploaded image as a PNG. I've been trying to do this with PIL but it's not working. It still seems to be saving as the original image type (whatever the user uploaded it as). What am I doing wrong?

if form.cleaned_data['dataset_image']:
   # dataset.dataset_image = form.cleaned_data['dataset_image']
    name = 'dataset%s.png' % (dataset.id)
    size = (200, 200)
    try:
        im = Image.open(form.cleaned_data['dataset_image'])
        im.save(name, 'PNG')
        print "saved file: ", im
    except IOError:
        # dont' save the image
        pass

When I upload a jpg (that I want to convert to png), the print statement gives this: saved file: <PIL.JpegImagePlugin.JpegImageFile image mode=RGB size=628x419 at 0x107354F80>

Upvotes: 0

Views: 1112

Answers (1)

Reti43
Reti43

Reputation: 9796

The print statement refers to the Image object when you opened the file. It used the JpegImagePlugin class because it is a jpeg image. However, when you call the method save(), you save the image based on the extension of the requested filename, in this case, png.

Try this if you aren't convinced.

try:
    im = Image.open(form.cleaned_data['dataset_image'])
    im.save(name)
    png_img = Image.open(name)
    print "saved file: ", png_img        # it's more clean to print `png_img.format`

By the way, just calling im.save(name) will also do in this case, since name already has the extension and the method will figure out you want it in that format.

Upvotes: 0

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