Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.18834898433
Darker point darker score: 1.06710207762
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3F813T7DKLBKP
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1R2MU0C4REIEF
darker: 2 (eq: False, dd: True), confidence: 1, worker: A167L9XCC3KHPF
darker: 2 (eq: False, dd: True), confidence: 2, worker: AI0LPDLUHKFMT (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1IOJ2LGMGISYM
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2DTELFC4X0QJQ
(0: guessing, 1: probably, 2: definitely)