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Correctly load 16-bit images. #622

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Correctly load 16-bit images. #622

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9 changes: 7 additions & 2 deletions lib/matplotlib/image.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1255,10 +1255,10 @@ def pil_to_array( pilImage ):
grayscale images, the return array is MxN. For RGB images, the
return value is MxNx3. For RGBA images the return value is MxNx4
"""
def toarray(im):
def toarray(im, dtype=np.uint8):
'return a 1D array of floats'
x_str = im.tostring('raw',im.mode,0,-1)
x = np.fromstring(x_str,np.uint8)
x = np.fromstring(x_str, dtype)
return x

if pilImage.mode in ('RGBA', 'RGBX'):
Expand All @@ -1275,6 +1275,11 @@ def toarray(im):
x = toarray(im)
x.shape = im.size[1], im.size[0], 3
return x
elif pilImage.mode=='I;16':
im = pilImage
x = toarray(im, '>u2' if im.mode.endswith('B') else '<u2')
x.shape = im.size[1], im.size[0]
return x

else: # try to convert to an rgba image
try:
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