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268 reputation
111
bio website john.jersdesk.com
location North Salt Lake, UT
age 43
visits member for 4 years
seen Dec 15 at 15:35

I am a software developer. I am particularly fond of the areas:

  • artificial intelligence, computer vision & machine learning
  • high end graphics & image processing
  • games

As this profile is now posted across multiple sites:

I am a member of the Church of Jesus Christ of Latter-Day Saints, also known as a Mormon.
I am also a mathematician.
I quite like interesting games and enjoy playing them with those of my many wonderful children who are old enough. We will often edit what we might find to be sleazy in a game without altering the game play, which quite widens the range of games we can play while staying within what we consider to be gospel standards.


Dec
4
accepted How does the usual jpeg 0-100 quality settings translate into Photoshop's 0-12 quality setting?
Dec
4
awarded  Curious
Dec
3
comment How does the usual jpeg 0-100 quality settings translate into Photoshop's 0-12 quality setting?
I did see that one. I didn't think it did. But possibly it is the case that quality number 0-100 isn't actually part of the jpeg standard (i.e. there aren't quantization tables specified in the standard by a given quality number) and so there IS no direct translation between adobes and libjpegs quality numbers because they actually use different quantization tables altogether. If that is the case, then there really isn't a translation between them and the answer you pointed to is as good as it is going to get.
Dec
3
asked How does the usual jpeg 0-100 quality settings translate into Photoshop's 0-12 quality setting?
Dec
3
accepted Is light fall off corrected for in modern cameras?
Nov
16
revised Is light fall off corrected for in modern cameras?
deleted 24 characters in body
Nov
15
comment Is light fall off corrected for in modern cameras?
@MichaelClark. No, in this case it is that simple. It has nothing to do with the actual choice of lenses used to make the projection. It is purely a property of the projection from outside world to photographic film or sensor. Ultimately no matter how many lenses you use they are put together to make a linear projection, and it is a property of that alone.
Nov
15
revised Is light fall off corrected for in modern cameras?
added 150 characters in body
Nov
15
revised Is light fall off corrected for in modern cameras?
added 121 characters in body; edited title
Nov
15
asked Is light fall off corrected for in modern cameras?
Nov
10
awarded  Popular Question
Apr
16
awarded  Popular Question
Mar
4
awarded  Commentator
Mar
4
comment Why do breathtaking views turn into “boring” photos, and how can I do better?
I admit however, that I didn't help him with his current photos. But my answer is intended to represent a fish-for-a-day vs learning-to-fish approach. If he learns to see visual components that are used to build up a great image, he will find his task no longer requires third party intervention. He will see it for himself in the frame of his camera. Oh, and very interesting answer on my Physics soundboard question Olin Lathrop. Nicely thought out.
Mar
4
comment Why do breathtaking views turn into “boring” photos, and how can I do better?
Well nothing I said was meant to be touchy-feely. If the author had asked about writing musical compositions and I had suggested he look into learning about chordal progressions and he listen for them in music he likes, particularly watching for the common tonic, subdominant, dominant progression, he would find it much easier to write his own music.
Feb
28
awarded  Teacher
Feb
28
comment Why do breathtaking views turn into “boring” photos, and how can I do better?
As a note: Composition is about the large scale design of the image whether by lines, darks and lights, colors, contrasting textures, whatever... And its meaning can vary. The composition of Raphael focuses on leading ones eye around the image. Where as the composition of the Japanese prints some of the Impressionists incorporated are almost more like rhythm on a grand scale, i.e. a means of breaking up the space of the image that resonates with itself.
Feb
28
answered Why do breathtaking views turn into “boring” photos, and how can I do better?
Aug
17
awarded  Popular Question
May
14
awarded  Yearling