added extract_oil from pysilcam

[nordam]

No description provided.

[arsalanmstn]

Hi, can you modify the extract_oil function by letting the user to set a deformation limit using Feret's Threshold as:

def extract_oil(stats, feretThres=0.3, THRESH=0.85, solidityThres=0.95):
ma = stats['minor_axis_length'] / stats['major_axis_length']
stats = stats[ma > feretThres] # cannot have a deformation more than Feret's Threshold
stats = stats[stats['solidity'] > solidityThresh]
ind = np.logical_or((stats['probability_oil'] > stats['probability_bubble']),
(stats['probability_oil'] > stats['probability_oily_gas']))

ind2 = (stats['probability_oil'] > THRESH)

ind = np.logical_and(ind, ind2)

stats = stats[ind]
return stats

[nepstad]

proabability_threshold -> probability_threshold