I have a bunch of 50x50 PNG files that show a little product. I have
some other 50x50 PNG files that are transparent except for the bottom
right corner, which has some text like "new!" or "fun!".
I want to create a new file that contains the original product
thumbnail, plus the mostly transparent image added over.
I figure this is a very straightforward operation, but I'm not getting
anywhere yet.
This is what I've tried so far:
In [93]: a = Image.open('a.png')
In [94]: a.info
Out[94]: {}
In [95]: a.size
Out[95]: (50, 50)
In [96]: a.mode
Out[96]: 'RGB'
In [97]: ff = Image.open('freeframe.png')
In [98]: ff.info
Out[98]:
{'Creation Time': '02/16/07',
'Software': 'Macromedia Fireworks 8',
'dpi': (71, 71),
'transparency': 0}
In [99]: ff.mode
Out[99]: 'P'
In [100]: ff.size
Out[100]: (50, 50)
In [101]: ImageChops.add(a, ff)
---------------------------------------------------------------------------
<type 'exceptions.ValueError'> Traceback (most recent call last)
C:\Documents and Settings\mwilson\My Documents\pil-fun\<ipython console> in
<module>()
C:\Python25\lib\site-packages\PIL\ImageChops.py in add(image1, image2,
scale, offset)
175 image1.load()
176 image2.load()
--> 177 return image1._new(image1.im.chop_add(image2.im, scale, offset))
178
179 ##
<type 'exceptions.ValueError'>: images do not match
In [102]: a2 = a.convert(mode='P')
In [103]: ImageChops.add(a2, ff)
Out[103]: <Image.Image instance at 0x00EE3F30>
In [104]: _103.show()
The image that I see is a grayscale image of just the a.png file. I
can't see the first image.
I'm probably making lots of rookie mistakes. All comments welcome.
Matt
--
A better way of running series of SAS programs:
http://overlook.homelinux.net/wilsonwiki/SasAndMakefiles
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