What is Pictures: Definition and 172 Discussions

An image (from Latin: imago) is an artifact that depicts visual perception, such as a photograph or other two-dimensional picture, that resembles a subject—usually a physical object—and thus provides a depiction of it. In the context of signal processing, an image is a distributed amplitude of color(s). A pictorial script is a writing system that employs images as symbols for various semantic entities, rather than the abstract signs used by alphabets.

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  1. sas3

    Stargazing Surefire Tips for Photographing Comet Lulin?

    Can someone take some pictures of Comet Lulin, I will not be able to make it up-North in time ( that’s where my telescope and camera are). I have been reading about it and see it has an anti tail. I never even heard of an anti tail, In some of the pictures I have seen on-line it seems to have...
  2. D

    Questionable resistance pictures included

    Homework Statement You would like to check if the battery voltage drops while it is supplying a current of 6A. You use a voltmeter designed to measure voltages up to 20V and having a resistance of 50,000 Ohms. Which of the two circuits below should be used? a.) How much current (in A) would...
  3. T

    Pictures of people with these 'genes'?

    I am curious as to how people who are 1/2 white, 1/4 black and 1/4 Asian look like. A typical scenario is where one parent is white/asian and the other is white/black.
  4. M

    What Are Some Stunning Astronomy Pictures?

    Hi everybody i've got some fantastic astronomy pictures.:smile: if you've got any let's share them
  5. A

    Derivatives, inflections, concavity [included pictures]

    7. First I took derivative and got f'(x)= 6x^2-72x+210. divided the whole thing by 6 and found the factors for x^2-12x+35. (x-7)(x-5) which will give me that the smaller critical number is x=5 and the bigger critical number is x=7. 8. First I set the equation to 0 and used the quadratic...
  6. A

    Concavity, critical #, second derivatives, extrema (with pictures)

    hey guys, hope you can help me with this, here's the picture: 1. to find whether it is increasing or decreasing, f'(x)<0 is decreasing and f'(x)>0 is increasing. so first-> i took the derivative and got f'(x)=12x^2+60x-168 and set it to zero to find the critical numbers. I got x= -7 and x=...
  7. A

    Derivatives with pictures (problems 3-4)

    Help me out please ! for #4 I'm preeeetty sure i did it correctly but it wouldn't hurt having someone double check it. for #5 , I'm not sure if i took the second derivative correctly Will be on for the next couple hours trying to understand calculus ... :( Thanks in advance ^^
  8. Borek

    Explore Old City in Warsaw: Castle Square, Market Place & More

    To buy postcards I had to visit Old City in Warsaw. We went there (with my better half) last Saturday. We took cameras with us. Stupid feeling, to behave like a tourist in your own city :smile: Castle Square with Zygmunt's Column. That's the view you will find everywhere, in every book about...
  9. M

    Photos of Bacteria - Coagulase-Negative Staphylococcus Albus & C Xerosis

    Hi, Does anybody know where on the web can I find photos of bacteria? I'm searching for co-agulase negative staphylococcus albus and C xerosis. Thanks a lot.
  10. P

    What happened to the pictures on google earth?

    Ever since I updated the last edition of google Earth (which must have been a while ago now that I think of it) all those nice pictures that people have taken of places and put on panoramio that tag a location on the maps in google Earth aren't there anymore. I turn on all the different...
  11. B

    Pictures From Space: Exploring Dark Matter & Time-Space Warps

    Real pictures from Space? Most people have seen pictures the Hubble space telescope has taken of deep space. These objects are so far away that in fact the light we are seeing has traveled many light years before even being detected. But what could happen to light over these unimaginably...
  12. N

    Pictures of your lab (experimentalists & theoreticians)

    Attach the best pictures of the lab you work in here! Theoreticians can attach pictures of their powerful pc's! My Laser Lab: http://img2.freeimagehosting.net/uploads/5e71c5fd82.jpg
  13. JasonRox

    Finally some Quebec City pictures

    Ok, these pictures aren't the greatest. I did not take them with my camera. I took them with my cellphone as I did not have my camera for the first week. I set them all up on one web page so that pop-ups are minimized and that I won't have to keep track of them on a site like imageshack or...
  14. qspeechc

    LaTeX Adding Images to LaTeX: A Quick Guide

    Hello everyone. How do you insert pictures into a LaTeX document? Say I have a jpeg, gif, or whatever, file, and I want the image to show up in my document, how do I insert it? Thanks.
  15. S

    Please explain the cause of the laser speckle pattern

    I was playing with a laser pointer and a concave mirror and I managed to get a 5mm beam to spread over a 30cm area. http://img361.imageshack.us/img361/1884/mspaintfg0.png http://img228.imageshack.us/img228/1866/lpuc9.jpg http://img228.imageshack.us/img228/3581/lp0ii9.jpg The irregular...
  16. M

    Favourite Physics/Maths Related Pictures

    Combined X-Ray and Optical Images of the Crab Nebula
  17. Evo

    What's the View Like From My New Place?

    Bear with me, I'm learning how to use my camera phone and I've just e-mailed these to myself from my phone. When I get my SD adaptor hopefully they'll look better. This is from my bedroom window From the patio From the back door (you can see how quickly the yard drops off into the...
  18. Janus

    First pictures From Mercury in 30 yrs.

    NASA's Messenger probe sent back it's first pictures: http://www.space.com/scienceastronomy/080116-messenger-mercury-images.html
  19. S

    Who Are the People on Here? A Look into the Faces of This Community

    Ok so I'm just interested (assuming others are too) of what people on here look like. I mean I wonder if people have a typical physics look. Might be a bit odd but I can't see any harm in this and am willing to let you all see me lol.
  20. B

    Taking Pictures From Outer Space: Color or B&W?

    When satelites go to other planets to study them and take pictures are the pictures in color or black and white? and if they are in black in white how do they know what the color really is when adding color to the pictures?
  21. R

    Java Java: writing pictures to a file

    hello, I need the code to write pictures to a file so I can read them sequentially.
  22. ZapperZ

    VOTE Photo Contest - Toy Pictures 'R' Us

    A smaller number of entries this time, but still, the voting should be interesting. Please vote for the picture that best represents our theme, which is pictures of toys, stuffed animals, etc... 1. Integral http://home.comcast.net/~Integral50/Photo_contest/HPIM0880a.JPG 2. robphy...
  23. ZapperZ

    PF PHOTO CONTEST - Toy Pictures 'R' Us (4/28-5/)

    Toy Pictures 'R' Us This time, the subject will be on toys, stuffed animals, etc. Anything that would clearly be considered as toys that you would find at toy stores. Note that sports items DO NOT qualify. Zz. Contest Rules: 1. Any digital photo or digitally-scanned photo relevant...
  24. Cyrus

    Can Work and Play Coexist? The Benefits of Take Your Child to Work Day

    Take your child to work day! :rofl: :rofl: :rofl:
  25. S

    Some pictures I've taken of some samples

    I've included some pictures I've taken of some samples I've broken.. and 1095 steel has a more finer surface than ductile cast iron, and cast iron, however, it is not as brittle.. I would of thought that the more brittle the material was the more cleaner the break... but... anyone have an...
  26. C

    How are pictures drawn by M.C. Escher breaking the laws of physics?

    Why are the drawings http://britton.disted.camosun.bc.ca/escher/ascending_and_descending.jpg" breaking the laws of physics? Which laws and equations are they violating?
  27. Danger

    I can't get ImageShack to display my pictures any more;

    I can't get ImageShack to display my pictures any more; they just show as a red 'x' (and I can't do anything by clicking or right-clicking it). Before I go pestering the customer service guys, I thought that I'd check here to see if anyone else is experiencing similar.
  28. H

    Calculators Upload pictures to TI-89 Titanium

    Hello! I would really appreciate any help with this. I have a lot of graphs etc that I made in excel, and stored as bitmap/jpeg files. I would like to upload these to the calc. It does not matter where, as long as I can retrieve them with some ease. So far I have learned that I can...
  29. Cyrus

    Take some pictures at school with my new camera

    ***Warning, if you have dial-up don't open this page. I decided to take some pictures at school with my new camera. My school has a beautiful campus. Here is the brand new Kim engineering building. We did a google search on the chairs in our computer lab and each one costs a grand...
  30. F

    Saturn's Rings Backlit: Glorious Detail & Light

    Saturn's rings backlit. You can see ALL the rings in glorious detail and light. It's beautiful. http://www.badastronomy.com/pix/bablog/2006/saturn_backlit_glow ...Any other amazing pictures?
  31. A

    Photos of Oslo & Åge Aleksandersen

    The following collage of photos is of Oslo (a lot from the sculpture park designed by Vigeland). The singer is Åge Aleksandersen, a very popular artist from Trondheim. [PLAIN][/URL]
  32. D

    Have You Seen These Stress-Relieving Pictures?

    Hi all, Just some picture to relieve your stress.(dunnoe if you guys seen this b4, but nvm) enjoy( the poll is just for me to determine how internationally well known these pictures are.BTW i come from singapore.) http://img172.imageshack.us/img172/4003/pic27753vl5.th.gif...
  33. T

    Dou you know anyone who has cats and likes to take pictures?

    I've always said I wanted to write a children's book. I wrote a poem that I think would be a great kid's book, but I ran into problems illustrating it because I can't draw. But there is no reason why real pictures couldn't be used instead. Picture a little kids book (maybe shaped like a cat's...
  34. dextercioby

    Visual Proofs in Mathematics: Does Pictures Tell More than 1000 Words?

    People usually say that pictures tell more than 1000 words. Is that still true in mathematics...? I think so. Let me first say what i mean by 'visual proof'. Let's say we have an identity. To prove it's true one may write from a line to more than one page. But what if one was able to write only...
  35. L

    LaTeX How can I easily insert pictures into LaTeX?

    I am using LaTeX quite a lot and I think that it is awesome stuff. However there is one little problem and that is inserting pictures into LaTeX I consider it pretty difficult to do. But a program like LaTeX which so many people use most have got an 'easy' way to insert pictures.
  36. z-component

    Solving Overexposed Photos from Kodak P&S Camera

    I went around campus last week to take some pictures, and I remember the sun was really bright that day. When I saw them at full size I noticed most of them were overexposed. When I took some from in shadows, I expected the white balance of the surroundings to be off because of the light...
  37. chroot

    What are some amazing pictures from AIDS/LifeCycle 5?

    Hey folks, I'm baaaaack from AIDS/LifeCycle 5, only slightly sunburnt and practically dripping with endorphins. For those of you who have never heard of AIDS/LifeCycle, it's a 7-day, 550-mile bicycle ride from San Francisco to Los Angeles, organized as a fundraiser to provide services and...
  38. S

    Transferring Pictures to your Memory Card

    ~ Transferring Pictures to your Memory Card ~ Hello, Few days ago one of my friends asked me if it was possible to transfer pictures to the memory card. The answer is yes, I am sure many of you are already know about this. But those of you who don’t please allow me to briefly...
  39. jimmy p

    Random Pictures. Gotta love the interweb.

    There are some really random pics on the internet. Here's one http://img.photobucket.com/albums/v353/dark_angel356/pancake2.jpg" What the hell is that about? :rofl:
  40. P

    News More Abu Ghraib Abuse Pictures Released - by Australia media

    Do correct me if i am wrong, but I am surprised news this explosive is not reported by the American or western media, even after it was broken by the press in Australia on 15th Feb. Instead they seemed to be quite obsessed with Cheney's quail mishap. Can you guys in America confirm or rebut...
  41. B

    Photos of Basic Parallel & Series Circuits

    Hi, I am looking for pictures (photos) which show how basic parallel and series circuits are set up. I have done a quick search on google but I haven't been able to find what I need. Any help would be really good thanks. Note: I am not looking for the schematic (circuit) diagrams which are...
  42. JasonRox

    What does my whiteboard look like and what other study areas do I have?

    Probably not worth starting a thread about, but let's make it one anyways. I want to see pictures of your work areas, or study areas. Although I still have more to put up, here are two of my whiteboard. I mentionned that I would post them a long time ago, so here it is. They are not of...
  43. P

    News Pictures of Shenzhen & Guangzhou

    Just some pictures of ordinary folks in Guangzhou and Shenzhen, I hope they help to demystify and neutralise some of the glam and glist and hype, and therefore fear and suspicion of the area. We are just people, muddling along :smile: . http://www.zonaeuropa.com/20051009_2.htm
  44. A

    Is the beam from these Class IIIB lasers truly visible without any added medium?

    http://www.megalaser.com/gallery.htm they sell class IIIB lasers are these pictures genuine? can class IIIB lasers really show a beam without some medium like smoke?
  45. R

    News Man whose Web site shows pictures of war dead is arrested

    Man whose Web site shows pictures of war dead is arrested Saturday, October 8, 2005 BY ANTHONY COLAROSSI ORLANDO SENTINEL ORLANDO, Fla. -- Authorities have arrested a Lakeland, Fla., man on obscenity charges after investigating his adult Web site, which has gained international...
  46. DaveC426913

    Unlock the Geometry Puzzle: Minimum Pictures Needed

    A geometry puzzle: Say I want to obtain an image of an object (eg. a toy car) from every possible angle in 3-dimensions, in, say, 15 degree increments. How many pictures would I need to take? The immediate answer is 576. 1] Rotate the car around X axis through 360 degrees in 15 degree...
  47. N

    Pictures of female human albinos

    I really want to see a picture/pictures of female human albinos...could somebody provide one or two? I think when I was in primary school one of my teachers said she taught one (or more?) and that they were really pretty thanks
  48. russ_watters

    Stargazing Did I finally capture decent pictures of Mars and other celestial objects?

    Busy night last night. I finally got some decent pictures of Mars, and with my new piggyback rig, I captured a bunch of open clusters and the Andromeda galaxy. With the moon near full and with a somewhat humid night and lots of light pollution, the Andromeda galaxy is pretty low contrast, but...
  49. Pengwuino

    Digital Cameras: Do you Take Pictures?

    So how many people here actually take a lot of pictures? It seems like EVERYONE has a digital camera and there's so much digital camera crap with printers and such on the market... but I don't know anyone who actively takes a lot of pictures. Sure maybe a few a month... but no one seems to take...
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