Introduction.- Forage Identification and Experimental Materials.- Identification of Gramineous Grass Seeds Using Gabor and Locality Preserving Projections.- Identification of Gramineous Grass Seeds Using Difference of Local Fractal Dimensions.- Identification of Gramineous Grass Seeds Using Local Similarity Pattern and Linear Discriminant Analysis.- Identification of Gramineous Grass Seeds Using Local Similarity Pattern and Gray Level Co-occurrence Matrix.- Microscopic Image Mosaic of Gramineous Grass Seeds.- Digital Information Platform of Grassland and Forage Based on Computer Vision.