workaround: convert dtype(image) to image.astype(dtype)

scikit-image · Mar 21, 2013 · 4b43e9f · 4b43e9f
1 parent c64350a
commit 4b43e9f
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/skimage/util/dtype.py b/skimage/util/dtype.py
@@ -176,7 +176,7 @@ def _scale(a, n, m, copy=True):
 
     if kind_in == 'b':
         # from binary image, to float and to integer
-        result = dtype(image)
+        result = image.astype(dtype)
         if kind != 'f':
             result *= dtype(dtype_range[dtype][1])
         return result
@@ -195,7 +195,7 @@ def _scale(a, n, m, copy=True):
             # floating point -> floating point
             if itemsize_in > itemsize:
                 prec_loss()
-            return dtype(image)
+            return image.astype(dtype)
 
         # floating point -> integer
         prec_loss()
@@ -218,7 +218,7 @@ def _scale(a, n, m, copy=True):
             image *= (imax - imin + 1.0) / 2.0
             np.floor(image, out=image)
             np.clip(image, imin, imax, out=image)
-        return dtype(image)
+        return image.astype(dtype)
 
     if kind == 'f':
         # integer -> floating point
@@ -236,7 +236,7 @@ def _scale(a, n, m, copy=True):
             image *= 2.0
             image += 1.0
             image /= imax_in - imin_in
-        return dtype(image)
+        return image.astype(dtype)
 
     if kind_in == 'u':
         if kind == 'i':
@@ -262,7 +262,7 @@ def _scale(a, n, m, copy=True):
     image -= imin_in
     image = _scale(image, 8 * itemsize_in, 8 * itemsize, copy=False)
     image += imin
-    return dtype(image)
+    return image.astype(dtype)
 
 
 def img_as_float(image, force_copy=False):