编码技术 Resources

Showing items tagged with "编码技术"

Huffman coding implementation for digital image processing. This program performs Huffman encoding on input images, displays the original image's entropy and average code length after encoding, and reconstructs images from the encoded data. Built using C++/MATLAB hybrid programming with pre-compiled MATLAB library files, requiring no additional C++ linking. Includes source code, original test images, and encoded result images.

MATLAB 306 views Tagged

DTMF (Dual-Tone Multi-Frequency) is an encoding technique that uses specific pairs of audio frequency tones to represent digit signals, where different frequency combinations correspond to different numbers or functions. This system utilizes 8 distinct frequencies to encode 16 telephone keypad buttons (digits 0-9 and symbols *, #, A, B, C, D). Key implementation requirements include: (1) Generating corresponding DTMF signals in MATLAB based on keyboard input symbols; (2) Calculating signal spectra using both FFT and Goertzel algorithms with spectral plotting; (3) Verifying symbol consistency between input and decoded signals through spectral analysis.

MATLAB 507 views Tagged