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This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
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This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
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This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
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本上传是在matlab环境下实现图像的基于DCT的JPEG压缩，上传内容包括主程序、子函数和实验原理pdf。可供朋友学习与参考。-This upload is in the matlab environment to achieve the image DCT-based JPEG compression, upload content, including the main program, subroutine and experimental principles of pdf. For
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jpeg compression , use DCT, Zigzag, Quantization,IDCT, InvZigzag, huffman to do the compression with matlab
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JPEG图像压缩标准MATLAB仿真程序。包括DCT变换及其逆变换、量化及反量化等过程。-JPEG image compression standard MATLAB simulation program. Including the DCT transform and its inverse transform, quantization and inverse quantization and other processes.
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基于DCT离散余弦变换的JPEG数字图像压缩MATLAB程序。-Discrete cosine transform DCT-based JPEG image compression MATLAB.
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This program does watermarking in dct coefficints.Robust againt jpeg compression and noise.Evaluated with psnr
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fft2 and dct algorithm in image compression JPEG
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多种视频压缩算法，包括霍夫曼编码，算术编码dct，jpeg，小波变换-A variety of video compression algorithm, including Huffman coding, arithmetic coding DCT, jpeg, wavelet transform
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JPEG的压缩编码及其matlab实现，包含了DCT变换，量化，AChuffman编码，DChuffman编码。-Of JPEG compression matlab to achieve, including the DCT, quantization, AChuffman coding, DChuffman coding.
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dct for compression jpeg
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JPEG compression in image processing using DCT
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DCT and Image Compression
In the JPEG image compression algorithm, the input image is divided into
8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each
block. The DCT coefficients are then quantized, coded, and trans
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jpeg compression using dct transform
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Data compression tools such as JPEG, KL TRANSFORM, DCT ETC ALGORITHM ARE given
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It shows what a jpeg compression is all about.
the function implements the DCT transform, using a matrix operator.
note that matlab has a function for the DCT and iDCT transforms
that might be more efficient.
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