Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.189043924535
Darker point darker score: 0.0422704609107
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1DRFDGG2KCOI2 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3U65EZ76A3HCN
darker: E (eq: True, dd: None), confidence: 0, worker: A36ABEGFKRJC2O
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1H10UJNXTJDX4
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2YM7PJ6OSMSR9
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1DU0G52OTCO5K
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3SOJXAUQE15S3
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
(0: guessing, 1: probably, 2: definitely)