基于手机拍照结合Image J软件对干辣椒外观品质的分级研究OA北大核心

The appearance,shape,and colour of dried chili peppers are critical criteria for quality classification.Currently,the in-spection methods for the appearance,shape,and colour of dried chili peppers outlined in GB 10465-1989 still rely on manual detection,often influenced by subjective perception,errors,visual physiology,and other factors.This makes it challenging to establish scientific and accepted standardized detection protocols.In this study,images of dried chili peppers were obtained using mobile phone photography,and image processing was carried out through Image J software.A convenient,rapid,and accurate method for determining the related charac-teristic quantities of the appearance and shape of dried chili peppers was proposed.Compared to manual measurements such as the vernier caliper method and paper-cutting method,this approach offers greater convenience and speed,enabling the measurement of phenotype in-dicators,including length,width,and area of dried chili peppers.Furthermore,the characteristic parameters of the appearance colour of dried chili peppers were obtained by constructing the Red-Green-Blue(RGB)colour model.Colour sorting adopts the classification basis of the R/(G+B)ratio.Combined with the width-to-length ratio and area of dried chili peppers,dried chili peppers can be classified into three grades:high-quality,qualified,and unqualified.