Research Article
Cascade Control of Coffee Roasting Degree in a Spouted Bed Batch Process Based on a Real-Time Imaging Analysis
Figure 4
Reference coffee images. (a) Green coffee, . (b) Light brown coffee, . (c) Brown coffee, . (d) Light roasted coffee, . (e) Medium roasted coffee, . (f) Dark roasted coffee, . (g) Very dark roasted coffee, .
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