Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.0237668643
Darker point darker score: 0.977846928844
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2S9J5W3VOD0M6
darker: 2 (eq: False, dd: True), confidence: 2, worker: AOKJCDRWBS5MK
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1H10UJNXTJDX4
darker: 2 (eq: False, dd: True), confidence: 0, worker: AG5PRN6LLI9E1
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
(0: guessing, 1: probably, 2: definitely)