retroencabulato | 9 years ago | on: MP3 for Image Compression (2006)
It kind of reads like you have discredited frequency domain compression algorithms. FYI JPEG used a block-based DCT which is very similar to a Fourier transform.
retroencabulato's comments
retroencabulato | 9 years ago | on: 40% of foreign students in the US have no close American friends on campus
Canada is certainly a major instigator, but expand your thinking outside North America and you may be surprised.
https://en.wikipedia.org/wiki/List_of_countries_ranked_by_et...
retroencabulato | 9 years ago | on: Golang landmines
> Everyone expects these values to be scoped inside the loop, but go reuses the same memory location for every iteration.
I don't see this as surprising as a C++ user. Who is 'everyone' here?
retroencabulato | 9 years ago | on: Finding an ATM Skimmer: It pays to be paranoid
What I think would be more effective is strategically placed range sensors that shutdown the ATM if something covers them for a period of time.
retroencabulato | 10 years ago | on: Where to hate daylight saving time and where to love it
In the US
retroencabulato | 10 years ago | on: Alibaba Plows $1B into Aliyun, Its Cloud Computing Unit
Superficially, the infrastructure needed to run Alibaba's retail website seems similar to the infrastructure needed to run Amazon's retail website.
What do you think Alibaba does?
retroencabulato | 10 years ago | on: Woah that is some wild postgresql
What does sufficiently Turing-complete mean? I thought a system is, or isn't?
retroencabulato | 10 years ago | on: Fourier series
Let's talk about the content of this demo, not the implementation.
retroencabulato | 11 years ago | on: New Jersey legalizes direct Tesla sales
Can you speak for an entire country?
retroencabulato | 11 years ago | on: Open source USB Type-C to HDMI Adapter
Who do you expect to be able to use this information? Yes, basic high-speed electronics experience is required.
retroencabulato | 11 years ago | on: Open source USB Type-C to HDMI Adapter
I disagree. Standalone gerbers aren't terribly useful for hobbyists, and you'd have no luck opening an Allegro project even if they released that (which they wouldn't due to in-house component libraries containing supply leads etc.)
This remains an excellent reference design to build upon. The world of PCB design is more labor intensive, but this would be perfectly simple to reimplement using hobby-level PCB software.
retroencabulato | 11 years ago | on: The new MacBook
And a USB rootkit bundled in for free!
retroencabulato | 11 years ago | on: Microsoft to invest in Cyanogen
No one in Silicon Valley gives a crap about desktops, all the growth is in mobile.
retroencabulato | 11 years ago | on: Python idioms I wish I'd learned earlier
Nice list, but I was confused by the arguments to the dict .get() example until I looked up the definition.
retroencabulato | 11 years ago | on: An FPGA Is an Impoverished Accelerator
I wish he would comment more on what he finds wrong with HDLs?
I fail to understand why using a HDL for a digital ASIC is fine, but using one for a FPGA in the context of acceleration is not.
retroencabulato | 11 years ago | on: TinyJPG – compress JPEG files with a balance between quality and file size
Other than pathological examples, PSNR is pretty useful for gauging the quality of photographs, and is very common in literature. Problems aside, it would have been nice to see some rate-distortion curves.
I agree eye balling the results is just as important, but I don't believe everyone should adopt this method because one dude thinks it looks better. Personally, I dislike the blocking artefacts around the neck and badge of the high-res image, even if some details are sharper.
retroencabulato | 11 years ago | on: TinyJPG – compress JPEG files with a balance between quality and file size
I don't think that article made strong arguments.
Using nearest-neighbour resampling on the low-res image is an absolute joke. He didn't even look at an objective quality measurement (PSNR). The human visual system is very sensitive to edges, and the high-res image has more pronounced blocking artefacts. Downsampling a high-res image is an unnecessary load on the end user, the 8x8 block transform was chosen for good reason.
I'm not necessarily saying the low-res is superior, but I disagree this ad hoc method is the 'best' way (compared to optimising the coding).
retroencabulato | 11 years ago | on: My Philosophy on Alerting: Observations of a Site Reliability Engineer at Google
That was an insightful talk, thanks.
retroencabulato | 11 years ago | on: Setback: A $58,000 lesson in mid-volume manufacturing
The same article, but with images: https://www.kickstarter.com/projects/1516846343/microview-ch...
Despite their mistake, I particularly like testing jig with capsense buttons (although I wonder why?)
retroencabulato | 11 years ago | on: Why your first Rust FizzBuzz implementation may not work
If something absolutely necessitates using C++, why not use C++? (I'm genuinely asking.)
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