Ordinal Annotation of Pre-Harvest Rose Maturity in Field Collected Images: Inter-Annotator Reliability and Feature-Space Analysis

The main contributions are: 1) a morphology-based annotation protocol for
four ordered pre-harvest maturity stages; 2) a protocol-annotated field
dataset of 681 individual rose images; 3) an inter-annotator reliability
assessment on a blinded, stratified 50-image subset; and 4) a multi-metric
feature-space analysis characterizing global structure and local ordinal
consistency without supervised training on the proposed labels.