Fig. 4: Schematic diagram of the RGB image acquisition setup.
From: Phenotypic feature-based identification of tea geographical origin using lightweight deep learning
The diagram illustrates the standardized photography environment used for collecting the primary dataset. A digital camera (Canon EOS RP) was positioned vertically above the tea leaf samples at a fixed distance of 10 cm to ensure consistent spatial resolution and geometric fidelity. Individual tea shoots, selected according to the “one bud and two leaves” standard, were placed on a flat surface for high-resolution RGB imaging under controlled settings.
