[Image-SIG] FW: Converting TIFF to JPEG

Moodie, Craig CA Moodie.Craig.CA@bhp.com
Wed, 20 Sep 2000 09:44:33 +1100

> Hi ,
>  I managed to sus out the The _imaging C module is not installed problem by adding - import Tkinter.--got this apparent fix from the Image-SIG archives.
> # myconvert_jpeg.py
> import os, sys
> import Tkinter
> import Image
> for infile in sys.argv[1:]:
> 	outfile=os.path.splitext(infile)[0]+".jpg"
> 	im=Image.open(infile)
> 	# print infile,im.format,"%dx%d" % im.size,im.mode
> 	im.save(outfile,"JPEG")
>  However on running this I got the following raise IOError
> C:\Program Files\Python\Scripts>python myconvert_jpeg.py image12194.tif
> Traceback (innermost last):
>   File "myconvert_jpeg.py", line 17, in ?
>     im.save(outfile,"JPEG")
>   File "C:\PROGRAM FILES\PYTHON\PIL\Image.py", line 666, in save
>     SAVE[string.upper(format)](self, fp, filename)
>   File "C:\PROGRAM FILES\PYTHON\PIL\JpegImagePlugin.py", line 298, in _save
>     raise IOError, "cannot write mode %s as JPEG" % im.mode
> IOError: cannot write mode P as JPEG
> Previously I ran the script with the print line active and got the image format detail below.
> c:\progra~1\python\Scripts\image12194.tif TIFF 853x603 P
> Can anybody inform me as to what I should do next to enable a conversion.
> Incidently the TIFF image was created using the DISLIN (Max Planck Institute) graphics libraries for Windows----RTIFF function.
>                                 Craig

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