Non uniform re sampling and recovery of digital color images stored in BMP format are discussed in the paper. In the re sampling, digital color image are equivalently segmented and then different re sampling frequency, which is automatically determined by using Discrete fast Fourier transform(FFT), is used according to frequency characteristic of each sub region and each color. Experiments and analyses show that recovery quantity and quality is affected by re sampling frequency, energy error, sub-region size, etc.Conclusions drawn from comparing the effects are useful to selection of some parameters. The proposed methods and procedures are not only effective to digital colour image signalst, it is useful to digital videos also.
朱学芳. 彩色图像信号的非均匀采样和重构[J]. 现代图书情报技术, 2003, 19(3): 67-72.
Zhu Xuefang. Resampling and Recovery of Digital Color Images. New Technology of Library and Information Service, 2003, 19(3): 67-72.
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