Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.880902070934
Darker point darker score: 0.957750081562
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3GGE6TW2JXBEA (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AI90ZNJJ543AP (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2LT5VXO2LS0UL
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2HSGLM9NG1QN7
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2YUBS32Z1NI59
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1OPUMTQBJ9A09
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
(0: guessing, 1: probably, 2: definitely)