文件列表:

demo_SADCT_color_denoising.m (33858, 2016-05-16)
demo_SADCT_deblocking.m (47347, 2016-05-16)
demo_SADCT_deblurring.m (34833, 2016-05-16)
demo_SADCT_denoising.m (28909, 2016-05-16)
demo_SADCT_inverse_halftoning.m (31036, 2016-05-16)
function_AnisLPAICI8.p (1698, 2016-05-09)
function_LumChrom2rgb.m (2291, 2016-05-16)
function_rgb2LumChrom.m (3406, 2016-05-16)
function_SADCT_RI_thresholding.mexa64 (160345, 2012-07-02)
function_SADCT_RI_thresholding.mexglx (154399, 2012-07-02)
function_SADCT_RI_thresholding.mexmaci (202812, 2012-07-02)
function_SADCT_RI_thresholding.mexmaci64 (178200, 2012-07-02)
function_SADCT_RI_thresholding.mexw32 (44032, 2006-04-12)
function_SADCT_RI_thresholding.mexw64 (148480, 2008-10-17)
function_SADCT_RW_wiener.mexa64 (131601, 2012-07-02)
function_SADCT_RW_wiener.mexglx (129759, 2012-07-02)
function_SADCT_RW_wiener.mexmaci (194564, 2012-07-02)
function_SADCT_RW_wiener.mexmaci64 (174048, 2012-07-02)
function_SADCT_RW_wiener.mexw32 (114688, 2006-10-04)
function_SADCT_RW_wiener.mexw64 (145408, 2008-10-17)
function_SADCT_thresholding_fast.mexa64 (136057, 2012-07-02)
function_SADCT_thresholding_fast.mexglx (142419, 2012-07-02)
function_SADCT_thresholding_fast.mexmaci (166232, 2012-07-02)
function_SADCT_thresholding_fast.mexmaci64 (129368, 2012-07-02)
function_SADCT_thresholding_fast.mexw32 (159744, 2006-04-20)
function_SADCT_thresholding_fast.mexw64 (190464, 2008-10-17)
function_SADCT_wiener_fast.mexa64 (148254, 2012-07-02)
function_SADCT_wiener_fast.mexglx (154584, 2012-07-02)
function_SADCT_wiener_fast.mexmaci (170240, 2012-07-02)
function_SADCT_wiener_fast.mexmaci64 (141568, 2012-07-02)
function_SADCT_wiener_fast.mexw32 (180224, 2006-04-20)
function_SADCT_wiener_fast.mexw64 (228352, 2008-10-17)
function_shape_explorer.m (15320, 2016-05-16)
image_Baboon512rgb.png (625179, 2005-10-29)
image_Barbara512.png (178047, 2005-09-16)
image_Barbara512v2.png (175255, 2005-09-16)
image_F16_512rgb.png (429132, 2005-12-08)
image_GreenPeppers512.png (165914, 2005-12-27)
image_House256.png (34399, 2005-09-16)
image_House256rgb.png (110937, 2005-10-29)
... ...

Pointwise Shape-Adaptive DCT Demobox - Public release v1.43 (15 May 2016) ------------------------------------------------------------------------------------------------------------ (c) 2005-2016 Alessandro Foi Kostadin Dabov Tampere University of Technology, Tampere, FINLAND http://www.cs.tut.fi/~foi/SA-DCT ------------------------------------------------------------------------------------------------------------ The package comprises five demos demo_SADCT_denoising.m (denoising of grayscale images), demo_SADCT_color_denoising.m (denoising of color images), demo_SADCT_deblocking.m (deblocking and deringing of grayscale and color B-DCT compressed images), demo_SADCT_deblurring.m (deblurring of grayscale images), demo_SADCT_inverse_halftoning.m (reconstruction of grayscale images from binary halftones) a function SADCT_denoising.m (denoising of grayscale images; similar to demo_SADCT_denoising.m), and a function which shows the adaptive-shape neighborhoods which are used in the demos as supports of the Shape-Adaptive DCT transform function_shape_explorer.m (visualization of the adaptive-shape neighborhoods). The main demo files are open-source, and may be modified and tuned to be exploited with other data. Each demo calls a pair of functions in order to perform hard-thresholding and Wiener filtering in SA-DCT domain. In particular, the denoising and deblocking demos use function_SADCT_thresholding_fast.dll (hard-thresholding in SA-DCT domain), function_SADCT_wiener_fast.dll (Wiener-filtering in SA-DCT domain), while the deblurring demo uses the pair function_SADCT_RI_thresholding.dll (hard-thresholding in SA-DCT domain for regularized inverse), function_SADCT_RW_wiener.dll (Wiener-filtering in SA-DCT domain for regularized-Wiener inverse). [Corresponding mexw***, mexa***, mexmaci, mexmaci***, and mexglx files are provided for various platforms]. Two more functions are called by the color denoising demo in order to perform color-space transformations: function_rgb2LumChrom.m (inverse transformation), function_LumChrom2rgb.m (forward transformation). Starting from v1.10, a new function function_AnisLPAICI8.p is introduced to perform the Anisotropic LPA-ICI adaptive-scale selection. It provides four to five times faster processing for the LPA-ICI part and requires much less memory than the previous general code based on conv2 and function_ICI code. Requirements: This demobox is developed for Matlab version 7.5. This demobox requires a few functions from the Anisotropic Nonparametric Image Restoration Demobox of LASIP Project (available for download at http://www.cs.tut.fi/~lasip/). It is suggested that the Pointwise Shape-Adaptive DCT Demobox and the Anisotropic Nonparametric Image Restoration Demobox are installed in the same folder. The deblocking demo demo_SADCT_deblocking.m uses the function jpeg_read.dll from the Matlab JPEG Toolbox by Phil Sallee. A complete release of this toolbox is included in our distribution in the file JPEG_Toolbox_MATLAB_1.4.zip. What's new in this release: changes from version 1.43 to 1.42: * updated: SADCT_denoising.m (fixed call to function_stdEst.m when sigma is not specified) changes from version 1.42 to 1.41: * updated: p-codes updated to enable compatibility with newer Matlab versions. * updated: most m-files, replacing calls to old function_stdEst2D with calls to newer function_stdEst changes from version 1.41 to 1.40: + added: SA_DCT_denoising.m implements the denoising as a function + added: mex-files for Windows *** bit, Linux 32 bit, and Linux *** bit, MacOSX 32 bit, MacOSX *** bit. changes from version 1.40 to 1.31: + added: demo_SADCT_inverse_halftoning.m (demo for reconstruction of grayscale images from binary halftones) * updated: function_rgb2LumChrom.m (cleaner code) * updated: function_LumChrom2rgb.m (cleaner code) * updated: demo_SADCT_deblurring.m (cleaner code) * updated: demo_SADCT_deblocking.m (added option to disable coefficient alignment) * updated: demo_SADCT_denoising.m (added option to disable coefficient alignment) * updated: demo_SADCT_color_denoising.m (added option to disable coefficient alignment) * updated: function_SADCT_RW_wiener.dll (minor fix to regularization term) changes from version 1.31 to 1.30: ! bugfix: demo_SADCT_deblurring.m (fixed: calculation of RW variance) changes from version 1.30 to 1.20: * updated: demo_SADCT_deblocking.m (added option to disable coefficient alignment) * updated: demo_SADCT_denoising.m (added option to disable coefficient alignment) * updated: demo_SADCT_color_denoising.m (added option to disable coefficient alignment) * updated: function_SADCT_thresholding_fast.dll (now works with Pentium3/Athlon CPU, coeff. alignment can be disabled) * updated: function_SADCT_wiener_fast.dll (now works with Pentium3/Athlon CPU, coeff. alignment can be disabled) * updated: function_SADCT_RI_thresholding.dll (now works with Pentium3/Athlon CPU) * updated: function_SADCT_RW_wiener.dll (now works with Pentium3/Athlon CPU) changes from version 1.10 to 1.20: + added: demo_SADCT_deblocking.m (demo for deblocking and deringing of grayscale and color images) * updated: demo_SADCT_denoising.m (added blocksize parameter to constrain the maximum size of the filtering block) * updated: demo_SADCT_color_denoising.m (added blocksize parameter to constrain the maximum size of the filtering block) * updated: function_shape_explorer.m (added blocksize parameter to constrain the maximum size of the filtering block) changes from version 1.04 to 1.10: + added: function_AnisLPAICI8.p (enables much faster calculation of h_opt_Q, lower memory requirements) * updated: demo_SADCT_denoising.m (uses function_AnisLPAICI8, added speed-up factor parameter) * updated: demo_SADCT_color_denoising.m (uses function_AnisLPAICI8, added speed-up factor parameter) changes from version 1.03 to 1.04: ! bugfix: demo_SADCT_deblurring.m (fixed: boundary handling for calculation of variance of LPA estimates) changes from version 1.02 to 1.03: * updated: demo_SADCT_denoising.m (improved comments, cleaner code, new image cropping, and more visualization options) * updated: demo_SADCT_color_denoising.m (improved comments, cleaner code, new image cropping, and more visualization options) * updated: function_rgb2LumChrom.m (improved comments and cleaner code) * updated: function_LumChrom2rgb.m (improved comments and cleaner code) * updated: function_shape_explorer.m (improved comments) * updated: function_SADCT_thresholding_fast.dll (faster processing of constant blocks) changes from version 1.01 to 1.02: ! bugfix: function_SADCT_thresholding_fast.dll (fixed: number of harmonics for square blocks) changes from version 1.00 to 1.01: ! bugfix: function_SADCT_thresholding_fast.dll (fixed: preservation of mean for square blocks) + added: function_shape_explorer.m (shows adaptive-shape supports of SA-DCT) Future additions: Updates, examples, publications, presentations, etc. can be found at http://www.cs.tut.fi/~foi/SA-DCT Disclaimer: Any unauthorized use of these routines for industrial or profit-oriented activities is expressively prohibited. By downloading and/or using any of these files, you implicitly agree to all the terms of the TUT limited license (included in the file Legal_Notice.txt). Questions/feedback: If you have any comment, suggestion, or question, please do contact Alessandro Foi at firstname.lastname@tut.fi

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