Fuente: WIPO "processing tomato" The invention relates to the technical field of image processing, in particular to a tomato seed quality detection method based on a spectrum technology, which comprises the following steps: acquiring the color similarity of every two pixel points according to the color difference of a plurality of adjacent pixel points of every two pixel points; according to the directivity of the color difference, obtaining a directivity factor of each pixel point; according to the directivity factor and the color similarity, obtaining the region similarity of every two pixel points; obtaining an empty package area evaluation of each pixel point; and evaluating according to the empty package area of each pixel point to obtain the empty package degree of the tomato seeds, thereby realizing quality detection of the tomato seeds. According to the method, errors caused by other areas similar to the color of the empty package area in the seed spectrum image are avoided, the obtained empty package area result is more accurate, and the accuracy of tomato seed quality detection is ensured.