In resource-constrained wireless multimedia sensor networks（WMSNs）

image coding and transmission must respect the trade-off among energy consumption

compression ratio and image quality.Energy consumption model of discrete wavelet transform（DWT）based image compression algorithm is developed.An energy efficient JPEG 2000 image compression algorithm is adapted to WMSNs.The algorithm determines the parameter of quantization and the wavelet image compression transform level to meet the image quality requirement and channel condition.Semi-reliable transmission enables packet forward or discarding by intermediate nodes according to residual energy and data priority.Simulation results show that the proposed image compression scheme provides a graceful trade-off between the reconstructed images quality and the total energy consumption of computation and communication of sensor nodes.