Grain Noise Detection Algorithm
Introduction Film grain is a particular random noise on photographic film due to the presence of small particles of a metallic silver, or dye clouds: Digital photography in virtue does not exhibit film grain. However a film grain overlay is sometimes added as a special effect onto digital content. There exist a number of […]
The Size of Tip in Restaurant
Famous social psychologist Bibb Latante visiting hundreds of Parisian restaurants empirically inferred the following formula, how the size of the tip depends on a number of people sitting at table: p = k Nt where t<1, N is the number of guests at table p – tip k – coefficient (= quality of service) […]
WebP Still Image Format
WebP Still Image Format was released by Google in September 2010. WebP is based on VP8 intra coding. WebP supports both lossless and lossy compression. It is reported to offer 39.8% more byte-size efficiency than JPEG for the same quality. For more results of WebP comparison with other still image codecs (JPEG, JPEG2000, JPEG XR) […]
PeaZip is Free Windows Tool To Open 7Z, RAR, TAR, ZIP etc.
PeaZip is Free Tool To Open 7Z, RAR, TAR, ZIP etc., this tool is installed from https://peazip.github.io/peazip-64bit.html Upon installing PeaZip, the following self-explaining figures show how to extract files from a zipped file: 1) 2) i chose “Browse path with PeaZip” option in order to specify a place to extract data 3) Select files […]
VQMT – Video Quality Metric Tool
There is a free VQMT tool, slightly “ancient” from 2013, you can find the link to windows binaries at http://mmspg.epfl.ch/vqmt or take my binaries . VQMT computes such video quality metrics as PSNR, SSIM, MSSSIM (Multi-Scale SSIM), VIFP (Visual Information Fidelity), PSNRHVS (Peak Signal-to-Noise Ratio taking into account Contrast Sensitivity Function). Notice that PSNR is […]
Useful Commands of Python ‘pip
1) to list of installed python modules (incl. their version) use the following command: pip list … terminado 0.13.3 testpath 0.6.0 threadpoolctl 3.1.0 tifffile 2022.10.10 torch 1.13.0 torchvision 0.14.0 tornado 6.1 tqdm 4.64.1 traitlets 5.1.1 typing_extensions 4.4.0 urllib3 1.26.9 wcwidth 0.2.5 webencodings 0.5.1 websocket-client 1.3.2 Werkzeug 2.2.2 wheel 0.38.4 yapf 0.32.0 zipp 3.10.0 […]
Atheism and materialism in the age of the the Enlightenment
The 18th century is commonly called as the age of the Enlightenment. Atheism and hence materialism were in fashion among intellectuals. Materialists claim that matter in motion or in flux is sufficient to account for all phenomena. Theological notion as the “soul” seemed to be an unnecessary hypothesis. Most radical materialists of the Enlightenment were […]
Non Reference Video Quality Assessment
Appendix: blurriness as non-reference Video Quality Metric Three necessary conditions for each Video Quality Metric (VQM) to meet: 1) symmetry: VQM(x, y) = VQM(y, x); 2) boundedness: 0 ≤ VQM(x, y) ≤ 1 (or 100) 3) unique maximum: VQM(x, y) = 1 if and only if x = y. Non-Reference Image Quality Assessment […]
Anthropic Principle in Cosmology
The essence of Anthropic principle in single sentence: “The Universe is planned in such a way to admit the existence of a conscious observer who would understand it”. In detail, our universe was “fine-tuned” in ways to make it especially suited to living beings (with or without consciousness). What’s “fine-tuning” – tiny change in any […]
The problem of Free Will
The problem of Free Will is thorny, but it can’t left non-debated. In Newtonian Physics worldview there is no room for Free Will, everything is predetermined. I read a paper of Erwin Schrodinger (one of the greatest physicists of XX century) “Indeterminism and free will” (published in 1936). Quantum Mechanics does not resolve the problem […]