Based on wavelet transform- Signal filtering research status at home and abroad,and windows that open into the traditional Fourier analysis Fourier transform in image processing,he time-frequency domain and the local time for the entire image frequency domain- wavelet transform algorithm are propose;then the wavelet analysis in agriculture things digital image processing and transmission applications feasibility(such as image processing high accuracy,wide band occupancy,data compression capability,image reproduction is good,high flexibility,wide application and so on)are introduced,it can be r...