I'm trying to convert raw image data into png with python.
I'm pretty new to python and especially to image processing...
The raw file is a 16 bit greyscale image.
As I already scanned the forums I came up with the following solution:
from PIL import Image, ImageFilter
import numpy as np
from scipy import ndimage, misc
rawfile = np.fromfile('test.raw', dtype=np.int16)
rawfile.shape = (1025,1025)
imgSize = (1025,1025)
img = Image.fromstring('L', imgSize, rawfile, 'raw', 'F;16')
img.save("rawData.png")
But I keep getting the following errors:
Traceback (most recent call last):
File "****\Programs\Python 2.7.6\readraw\readraw.py", line 11, in <module>
img = Image.fromstring('L', imgSize, rawfile, 'raw', 'F;16')
File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 1835, in fromstring
return frombytes(*args, **kw)
File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 1822, in frombytes
im.frombytes(data, decoder_name, args)
File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 608, in frombytes
d = _getdecoder(self.mode, decoder_name, args)
File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 390, in _getdecoder
return decoder(mode, *args + extra)
ValueError: unknown raw mode
Can someone explain to me why the raw mode is unknown? I checked the Docs and as far as I understand the topic, the PILLOW lib should come with this?!
Best regards
Thank you guys for your help!
I altered my code and now it seems to work:
from PIL import Image, ImageFilter
import numpy as np
from scipy import ndimage, misc
rawfile = np.fromfile('test.raw', "uint16")
rawfile.shape = (1025,1025)
misc.imsave("test.png", rawfile)