Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.884428907334
Darker point darker score: 0.925273891717
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PX16PNFHQ5OK
darker: 2 (eq: False, dd: True), confidence: 1, worker: A13QL2FY4BZR9B
darker: 2 (eq: False, dd: True), confidence: 1, worker: APWBUB0PDRLS5
darker: 2 (eq: False, dd: True), confidence: 1, worker: AUD2Y1IOZ0GN4 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1A50D6DABL6IK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2SNX0RFIPIO60
(0: guessing, 1: probably, 2: definitely)