importImage,ImageDraw,ImageFont, os, glob

list = glob.glob('*.jpg')for infile in list:print infile

    file, ext = os.path.splitext(infile)

    outname = file +"_test.jpg"print outname

    im =Image.open(infile)

    d =ImageDraw.Draw(im)

    f =ImageFont.truetype("Arial.ttf",16)

    d.text((4,0), file, font=f)

    im.save(outname)

It prints out the name of the file, so the file is there - so why can't it open it?

The file exists, but I get the following error:

Is there an easier way to add a caption to the bottom of the image?

Thanks to the help of Nick & Manu pointing me in the right dierction, I worked out a solution that works:

importImage,ImageDraw,ImageFontfrom PIL importImageimport glob, os

importTkinterimportImageTkimport fnmatch

list = glob.glob('*.jpg')

cnt =0for infile in list:

    cnt +=1print infile

    file, ext = os.path.splitext(infile)

    outname = file +"_test.jpg"print outname

    #im = Image.open(infile)

    im =Image.open(open(infile,'rb'))

    d =ImageDraw.Draw(im)

    f =ImageFont.truetype("c:/windows/fonts/arial.ttf",200)

    x =10

    y =550

    d.text((x, y), str(cnt), font=f)

    im.save(outname)print"==========="