Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.925288178616
Darker point darker score: 0.977528517606
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3760PCQD2MPIO
darker: 2 (eq: False, dd: True), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AL40D2AAH2VB2
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3N21HBZFYFEXJ
darker: 2 (eq: False, dd: True), confidence: 2, worker: ADPVKKFJ886DJ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UIVQJXY62XU8
darker: E (eq: True, dd: None), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
(0: guessing, 1: probably, 2: definitely)