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[comments-only] Update fingerprint.py

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type at line #97.
FINGERPRINT_REDUCTION is actually being used to slice generated hash from 0th to FINGERPRINT_REDUCTION(th) position, updated the comment accordingly
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Anurag Kumar 2017-12-05 10:08:23 +05:30 committed by GitHub
parent 7f53f2ab68
commit 7268ce0a78
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1 changed files with 4 additions and 4 deletions
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dejavu/fingerprint.py
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@ -56,9 +56,9 @@ MAX_HASH_TIME_DELTA = 200
PEAK_SORT = True PEAK_SORT = True
###################################################################### ######################################################################
# Number of bits to throw away from the front of the SHA1 hash in the # Number of bits to grab from the front of the SHA1 hash in the
# fingerprint calculation. The more you throw away, the less storage, but # fingerprint calculation. The more you grab, the more memory storage,
# potentially higher collisions and misclassifications when identifying songs. # with potentially lesser collisions of matches.
FINGERPRINT_REDUCTION = 20 FINGERPRINT_REDUCTION = 20
def fingerprint(channel_samples, Fs=DEFAULT_FS, def fingerprint(channel_samples, Fs=DEFAULT_FS,
@ -94,7 +94,7 @@ def get_2D_peaks(arr2D, plot=False, amp_min=DEFAULT_AMP_MIN):
struct = generate_binary_structure(2, 1) struct = generate_binary_structure(2, 1)
neighborhood = iterate_structure(struct, PEAK_NEIGHBORHOOD_SIZE) neighborhood = iterate_structure(struct, PEAK_NEIGHBORHOOD_SIZE)
# find local maxima using our fliter shape # find local maxima using our filter shape
local_max = maximum_filter(arr2D, footprint=neighborhood) == arr2D local_max = maximum_filter(arr2D, footprint=neighborhood) == arr2D
background = (arr2D == 0) background = (arr2D == 0)
eroded_background = binary_erosion(background, structure=neighborhood, eroded_background = binary_erosion(background, structure=neighborhood,