10000 TST: raise ImageComparisonFailure on size mismatch by tacaswell · Pull Request #6191 · matplotlib/matplotlib · GitHub
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TST: raise ImageComparisonFailure on size mismatch #6191

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Merged
merged 1 commit into from
Mar 23, 2016
Merged

TST: raise ImageComparisonFailure on size mismatch #6191

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5 changes: 5 additions & 0 deletions lib/matplotlib/testing/compare.py
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Original file line number Diff line number Diff line change
Expand Up @@ -242,6 +242,11 @@ def crop_to_same(actual_path, actual_image, expected_path, expected_image):

def calculate_rms(expectedImage, actualImage):
"Calculate the per-pixel errors, then compute the root mean square error."
if expectedImage.shape != actualImage.shape:
raise ImageComparisonFailure(
"image sizes do not match expected size: {0} "
"actual size {1}".format(expectedImage.shape, actualImage.shape))

num_values = np.prod(expectedImage.shape)
abs_diff_image = abs(expectedImage - actualImage)

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