Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.319672420423
Darker point darker score: 0.273311028075
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2DTELFC4X0QJQ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1DCEOFAUIDY58
darker: 1 (eq: False, dd: True), confidence: 2, worker: A32XWNZW2DQ6UZ
darker: 1 (eq: False, dd: True), confidence: 2, worker: ADPVKKFJ886DJ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2YYHNACJ8MFTU
(0: guessing, 1: probably, 2: definitely)