[Image-SIG] Converting from "CMYK" to "RGB"

Kevin Cazabon kevin at cazabon.com
Fri Jul 5 16:04:29 CEST 2013


Convert does not modify the image in place : it returns a new converted image. 

Use newim = origim.convert("RGB")

Kevin

On Jun 30, 2013, at 18:29, Matti Viljamaa <mviljamaa at kapsi.fi> wrote:

> I'm trying to handle CMYK images by converting them to RGB. I'm using the following code snippet:
> 
> import sys
> from PIL import Image
> 
> def loadImage(self, imageFileName):
>    imageFile = open(imageFileName)
>    image = Image.open(imageFile)
> 
>    if(image.mode == 'CMYK' ):
>        image.convert('RGB')
> 
> However the image is not converted to RGB, although its mode is recognized as CMYK.
> 
> Later when loading this image into a QImage (of the Qt GUI library), the compiler produces an error indicating that the mode is still CMYK:
>    ValueError: unsupported image mode 'CMYK'
> 
> So how can CMYK images be handled?
> 
> My PIL is of version 1.1.6.
> 
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
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