An encoder object encapsulates a globally unique identifier guid that identifies the category of an image encoder parameter 对象封装一个全局唯一标识符( guid ) ，它标识图像编码器参数的类别。
Not only appropriate hardware system but also right compression algorithm is important to implement low - bit rate image coder 要实现低速率图像编码器，不仅要设计合适的硬件系统还要选取合适的图像压缩算法。
The short form of the term image encoder decoder . software or an algorithm that converts images to a specified file format encoder or from file format to displayed image decoder 术语“图像编码器/解码器”的缩写形式。将图像转换为指定文件格式（编码器）或从文件格式转换为显示的图像（解码器）的软件或算法。
5 . based on spiht algorithm , a codec software packet is developed and used in face recognition system . simulation results indicate that the recognition ration based compressed face images of 40 : 1 and 100 : 1 is the same as non compressed ones , and to the images of 200 : 1 compressed , the correctness is above 95 % 5 、基于sphit算法设计实现了一个小波图像编码器，并将其应用于人脸识别系统之中，结果表明：在压缩比为40 : 1 、 100 : 1的情况下对解压缩后人脸图像的识别结果与未压缩人脸图像的识别结果一致，压缩比200 : 1时正确率在95以上。
With the theory of wavelet transform and reversible integer - to - integer wavelet transforms based on shifting frame used in image / video compression field introduced , a new real - time implement of speck algorithm using dsp chip is provided . then the technology of motion estimation and motion compensation is discussed and an adaptive technique for the wavelet video codec to reduce the " block artifact " is presented . and the implement of the wavelet video compression system using adv611 chip is discussed next with the performance emulation result 在系统讨论了小波理论在图像视频压缩编码领域的应用后，结合dsp技术提出一种基于dsp应用的实时低存储需求的改进speck图像编码器；随后探讨基于小波变换的实时视频编码器的实现，在论述运动估计与补偿技术的基础上，针对应用空域运动估计补偿技术的低比特率小波视频编码器提出一种自适应消除块效应的技术；并讨论了基于adv611芯片的视频压缩系统的压缩性能；最后提出一种基于dsp平台具有极低时延的小波视频混合编码方案，对该方案的压缩性能进行了讨论并给出初步的硬件实现方案。
