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Fix bug in laplacian pyramid caused by renamed variables

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Johannes Schönberger
2012-09-09 21:34:42 +02:00
parent 8a75cc4626
commit 0f175a86b2
1 changed files with 9 additions and 11 deletions
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skimage/transform/pyramids.py
+9 -11
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@@ -261,31 +261,29 @@ def build_laplacian_pyramid(image, max_layer=-1, downscale=2, sigma=None,
rows = image.shape[0]
cols = image.shape[1]
prev_layer_image = image - _smooth(image, sigma, mode, cval)
yield prev_layer_image
smoothed_image = _smooth(image, sigma, mode, cval)
yield image - smoothed_image
# build downsampled images until max_layer is reached or downsampled image
# has size of 1 in one direction
while layer != max_layer:
layer += 1
rows = prev_layer_image.shape[0]
cols = prev_layer_image.shape[1]
out_rows = math.ceil(rows / float(downscale))
out_cols = math.ceil(cols / float(downscale))
resized = resize(prev_layer_image, (out_rows, out_cols), order=order,
mode=mode, cval=cval)
layer_image = _smooth(resized, sigma, mode, cval)
resized_image = resize(smoothed_image, (out_rows, out_cols),
order=order, mode=mode, cval=cval)
smoothed_image = _smooth(resized_image, sigma, mode, cval)
prev_rows = rows
prev_cols = cols
prev_layer_image = layer_image
rows = layer_image.shape[0]
cols = layer_image.shape[1]
rows = resized_image.shape[0]
cols = resized_image.shape[1]
# no change to previous pyramid layer
if prev_rows == rows and prev_cols == cols:
break
yield layer_image
yield resized_image - smoothed_image