search for: ssim

Hiya, I have been struggling to save the result from the FOR loop. What is the best way to do it, as I need the result to merge with another dataset for further analysis ? for (dd in ((M-10):M)){ + dist<-(32-dd) + r<-1/2*(1-exp(-2*dist/100)) + map<-c(dd,round(r,4)) + print(map) + next + } Thanks. Stella ___________________________________________________________________________ This

Dear list, I have a dataset as follow and I would like to count the frequencies for the combination of the two variables (f1 and f2) for each id. I know it is should be straight forward, but I just don't know how to do it in R. Here is the SAS code I will use to get the output I want : proc means nway; class id f1 f2; var flag output out=temp; Dataset: id f1 f2 flag 798 1 2

Hi all, I have to compare the theora codec with MPEG and H264. I was googling and I found that the PSNR is a common used parameter. How can I do this with Theora? Thanks -- Leonardo de Paula Rosa Piga Undergraduate Computer Engineering Student LSC - IC - UNICAMP http://www.students.ic.unicamp.br/~ra033956

Dear members, I want to create a sequence of numbers for the multiple records of individual animal in my dataset. The SAS code below will do the trick, but I want to learn to do it in R. Can anyone help ? data ht&ssn; set ht&ssn; by anml_key; if first.anml_key then do; seq_ht_rslt=0; end; seq_ht_rslt+1; Thanks in advance. Stella

...nge coder (division-free) that can be skipped to code raw bits or with huffman, rice-golomb... Wavelet transforms, SPIHT, context modeling have improved since 2008, so why no new updated wavelet codec, as it was the case of HEVC for H.264 (Rududu is similar in performance with x264 intra, PSNR- and SSIM- wise)? -Do wavelets have so much bad reputation?- Ok that's right the NHW codec is a wavelet codec, but it's a totally new approach, with an emphasis on speed (extremely fast with a good visual quality, neatness/sharpness preserving) mainly designed to fit with portable devices. Just las...

Hello, I am still working on very high compression for the NHW Project, but I find the current version good, it has a good neatness of image, which I find visually more pleasant than other codecs that are optimizing for PSNR, SSIM,... Furthermore the NHW Project is still very fast and royalty-free. I dedicated this past year to the NHW Project and I could make very good improvements (like quality improvements, adding of high and very high compression, Linux version, NHW neatness metrics, image study and comparison with x265...

On Mon, 8 Nov 2004 ssim at lic.co.nz wrote: > > Is there an add-on package in R for QTL interval mapping for outbred > population, eg. Haley-Knott regression method ? > > Stella I believe Karl Broman's R/QTL (http://biosun01.biostat.jhsph.edu/~kbroman/software/) and Brian Yandell's bim (http://www....

Dear R list, I am reading in text file data prepared in Access database by someone. One of the field contains timestamp data, how can I separate the timestamp data into two varaibles: date and time. Can I specify the field is in timestamp format when I first reading in ? My reading in data are as below: 449 LWT 22/10/2003 15:43:00 441 143 449 LWT 17/11/2003 15:25:00 421 169 449 LWT

...denoising, details washing-out inside the contours.The resulting image can appear then a little "cartoonish" but visually it's the result I neatly prefer compared to x264, WebP, Rududu results and artifacts at these same very high compression ratios.(This is also confirmed by PSNR and SSIM...) So for -l8 very high compression setting and above, I will need to find a new approach of compression and perceptual quality, and new processings.Again if you have skills in image and signal processing, compression, machine learning, and other, and you think you can help us, do not hesitate to...

Dear lists, I want to construct a loop in R, but don't know how to do it. I can do it in SAS, but I prefer in R (which I am hoping I will off SAS for good soon). Could anyone help me to convert the SAS codes to equivalent R codes. Basically, the following codes were written to establish the sire gametes or phases for daughter design for one markers two alleles. Here are the SAS code: do

Hello! I'm trying to use ffmpeg2theora to encode raw (.yuv) files in I420 format (just frames, no headers at all), but failed to find corresponding input format. Is there any documentation of supported formats for ffmpeg2theora? Or maybe there is another command-line tool for Windows to encode raw video using Theora algorithm? Thank you for help! Alexander.

"... we need a baseline to work from - one standard format that (if all else fails) everything can fall back to. This doesn?t need to be the most complex format, or the most advertised format, or even the format with the most companies involved in its creation. All it needs to do is to be available, everywhere. The codec in the frame for this is Ogg Theora..." :)

Hi again, I have improved precision of my codec (on the encoder and decoder).I have also improved the -h1 quality setting.-Source code and binaries at http://nhwcodec.blogspot.com/-. I am still trying to improve precision of my codec, with keeping my low-complexity (fast) approach. I do not totally use the reference (and impressive) block prediction with different modes + residual coding scheme,

Dear lists, Is there an add-on package in R for QTL interval mapping for outbred population, eg. Haley-Knott regression method ? Tanx Stella ___________________________________________________________________________ This message, including attachments, is confidential. If you are not the intended recipient, please contact us as soon as possible and then destroy the message. Do not copy,