防川 2021-01-10 12:05:32
Description: Using DCT transform coding, the value of some positions in a data block is set to 0, using two methods.
Plat: matlab | Size: 1KB | Downloads: 0
防川 2021-01-10 12:04:00
Description: Using DCT coding, the elements whose median value of DCT coefficient matrix is less than the given threshold are set to 0, and the change threshold is compared.
Plat: matlab | Size: 1KB | Downloads: 0
防川 2021-01-10 11:51:48
Description: DCT transform for image compression.
Plat: matlab | Size: 1518KB | Downloads: 0
Sivasp 2020-11-16 16:05:20
Description: dct document for understanding concepts
Plat: WINDOWS | Size: 209KB | Downloads: 0
岚岚岚1 2020-11-15 13:03:22
Description: For data compression Oh coding, DCT, C language code.
Plat: C/C++ | Size: 39KB | Downloads: 0
yellgboy 2020-10-20 08:50:09
Description: A DCT digital watermark thesis. In this paper, the low frequency watermarking algorithm based on DCT, the intermediate frequency watermarking algorithm based on DCT and the adaptive video watermarking scheme based on DCT are mainly studied.
Plat: matlab | Size: 161KB | Downloads: 7
tgracgra 2020-09-07 19:32:05
Description: Performing compression of a DCT-transformed image.
Plat: matlab | Size: 54KB | Downloads: 0
da柚子 2020-06-26 16:43:05
Description: Image transformation technology is to transform the original image in order to make the image represented by orthogonal function or orthogonal matrix. The transformation is two-dimensional linear reversible.
Plat: matlab | Size: 9KB | Downloads: 0
HannahZYH 2020-06-10 16:21:55
Description: Matlab code realization of DCT image compression
Plat: matlab | Size: 158KB | Downloads: 1
muhammad garno 2020-06-01 12:02:20
Description: the application of dct and bilinear interpolation to digital images for steganography
Plat: PDF | Size: 596KB | Downloads: 0
就是爱学习。 2020-05-21 17:24:12
Description: DCT transform is often used by signal processing and image processing for lossy data compression of signals and images. The DCT transform in Matlab has a strong "energy concentration" characteristic, and only a part of the DCT coefficients can be used to reconstruct the signal
Plat: LabView | Size: 11KB | Downloads: 0
Sunny Camel 2020-05-12 14:13:21
Description: DCT transform, quantization and Huffman coding for two-dimensional image information
Plat: matlab | Size: 1KB | Downloads: 1
qianyongqing 2020-05-10 19:46:03
Description: Audio digital watermarking algorithm programmed by MATLAB
Plat: matlab | Size: 3KB | Downloads: 0
jnrel 2020-05-08 23:07:56
Description: Image processing Process picture information Compilation and recompilation
Plat: matlab | Size: 2KB | Downloads: 0
yukiu 2020-05-07 20:15:39
Description: A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. The DCT, first proposed by Nasir Ahmed in 1972, is a widely used transformation technique in signal processing and data compression. It is used in most digital media, including digital images (such as JPEG and HEIF, where small high-frequency components can be discarded), digital video (such as MPEG and H.26x), digital audio (such as Dolby Digital, MP3 and AAC), digital television (such as SDTV, HDTV and VOD), digital radio (such as AAC+ and DAB+), and speech coding (such as AAC-LD, Siren and Opus).
Plat: C/C++ | Size: 2835KB | Downloads: 0
启明星gzk 2020-05-07 13:04:38
Description: I wrote matlab to meet the requirements of the course design, using DCT image compression
Plat: matlab | Size: 185KB | Downloads: 1
tubkur 2020-04-23 18:42:32
Description: image fusion using swt dct and sf
Plat: matlab | Size: 280KB | Downloads: 2
rajan123 2020-04-20 01:57:27
Description: CODE FOR DCT WATERMARKING ALGORITHM
Plat: WINDOWS | Size: 1278KB | Downloads: 0
rajan123 2020-04-20 01:48:29
Description: DCT MATLAB CODE FOR IMAGE FORGERY
Plat: WINDOWS | Size: 632KB | Downloads: 2
becky_张 2020-04-13 14:24:22
Description: DCT image compression codec
Plat: matlab | Size: 2KB | Downloads: 0
milkbaby 2020-04-12 12:08:58
Description: The digital watermark based on DCT needs to change the image to its own path.
Plat: matlab | Size: 2KB | Downloads: 1
red1 2020-03-31 18:37:21
Description: discrete cosine transform
Plat: VHDL | Size: 31KB | Downloads: 0
heisgbers 2020-03-24 14:36:05
Description: The watermark algorithm based on DCT and DWT has detailed steps
Plat: matlab | Size: 1159KB | Downloads: 6
ningqingxue 2020-03-09 14:02:54
Description: In this paper, the image watermark source code, if you use it, please change the image with suffix (. BMP) into your own (. BMP) and then change the relevant code in the source code into the corresponding one.
Plat: matlab | Size: 261KB | Downloads: 2
99566 2020-02-27 16:01:58
Description: dct fft
Plat: matlab | Size: 41KB | Downloads: 0
derious 2019-12-25 15:43:23
Description: Matlab implementation of steganography algorithm based on DCT transform domain of image
Plat: matlab | Size: 114KB | Downloads: 5
svcouv 2019-12-23 00:44:19
Description: DCT vs WT compression algorithms and performance comparison for denoising image
Plat: matlab | Size: 60KB | Downloads: 1
leolook 2019-11-30 14:26:50
Description: Using MATLAB to realize the discrete Fourier transform and the discrete cosine transform of image, and compare them
Plat: matlab | Size: 1KB | Downloads: 0
Jonn 2019-06-30 09:32:05
Description: Five methods, median, mean, wavelet, DCT and PCA, are used to denoise the image.
Plat: matlab | Size: 14123KB | Downloads: 41