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System and method for data hiding in compressed fingerprint images
System and method for data hiding in compressed fingerprint images
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机译:在压缩指纹图像中隐藏数据的系统和方法
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摘要
A method to hide small messages in a wavelet compressed fingerprint image is presented. The method is characterized by random placement of the message bits in the compressed and quantized indices. The compressed image can be decompressed by any certified decompressor without any visible difference. However, the decoder aware of the decompression can only retrieve the hidden message in the image and additionally decompress the image without any error in pixel values.
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