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FIX: rgb2hed and hed2rgb can work with both signed and unsigned image.

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spotter
2013-03-11 23:54:06 +01:00
parent 0fd2f355b2
commit 20f27345c3
1 changed files with 2 additions and 2 deletions
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skimage/color/colorconv.py
+2 -2
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@@ -769,7 +769,7 @@ def rgb2hed(rgb):
>>> ihc = data.ihc()
>>> ihc_hed = rgb2hed(ihc)
"""
rgb = dtype.img_as_float(rgb) + 1
rgb = dtype.img_as_float(rgb) + 2
hed = np.dot(np.reshape(-np.log(rgb), (-1, 3)), hed_from_rgb)
return np.reshape(hed, rgb.shape)
@@ -812,4 +812,4 @@ def hed2rgb(hed):
hed = dtype.img_as_float(hed)
logrgb1 = np.dot(-np.reshape(hed, (-1, 3)), rgb_from_hed)
rgb1 = np.exp(logrgb1)
return rescale_intensity(np.reshape(rgb1 - 1, hed.shape), in_range=(0, 1))
return rescale_intensity(np.reshape(rgb1 - 2, hed.shape), in_range=(-1, 1))