Post subject: Image Averaging and Wasting Time
Player (121)
Joined: 2/11/2007
Posts: 1522
Image averaging! Screenshots from movies. Play guess the system! It is an easy game to play, especially if you cheat.
I have a nagging feeling that this has been done before, but meh, these are more up to date :)
I make a comic with no image files and you should read it. While there is a lower class, I am in it, and while there is a criminal element I am of it, and while there is a soul in prison, I am not free. -Eugene Debs
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Third one's from a Sonic title. Judging from the popularity trends around here, I'm guessing Sonic 3.
A hundred years from now, they will gaze upon my work and marvel at my skills but never know my name. And that will be good enough for me.
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Can I make requests? I want King's Bounty. Thanks. You suck. The last one is pretty neat.
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Player (121)
Joined: 2/11/2007
Posts: 1522
Oh, no, sorry, each image is generated from an average of every screenshot from a system. So it's a bunch of games. Not just one. I meant guess the system, not guess the game. Also, the game was meant to be played silently, to yourself. It's too trivial to ruin it for others. Again, I'm very sorry for the confusion. I guess you could say that generating confusion is my hobby. But say it silently, to yourself. jimsfriend: No, sorry, you can't. Don't guess anymore, but if people can explain why some of them have the weird grid effect, that would be pretty ok! I would like to know your theories.
I make a comic with no image files and you should read it. While there is a lower class, I am in it, and while there is a criminal element I am of it, and while there is a soul in prison, I am not free. -Eugene Debs
Banned User
Joined: 6/18/2010
Posts: 183
alden wrote:
Oh, no, sorry, each image is generated from an average of every screenshot from a system. So it's a bunch of games. Not just one. I meant guess the system, not guess the game.
Averaging all the frames from one game would be pretty cool and a fun little quiz. Some games (like Zelda 1) would work better if you could somehow leave off the ubiquitous menu display at the top. How would one go about doing such a thing if they wanted to?
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Pointless Boy wrote:
How would one go about doing such a thing if they wanted to?
If Lua has access to the pixel data being displayed, I'm sure it would take but just a few lines of Lua code to sum all the pixels of each frame to an array and then divide the values by the number of frames. Then it's a question of whether you can save the values in that array to an image file format (if Lua has no direct support, then you could simply output to a ppm (easiest, as it's an ascii-based format) or raw tga (binary format with an 18-byte header, but very simple), and then use a converter to convert it to a png).
Editor, Player (69)
Joined: 1/18/2008
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You make it too easy to "cheat."
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Player (206)
Joined: 5/29/2004
Posts: 5712
I guess it's a game of "Find the head-up display!" Or checking screen resolutions, which narrows it down a lot for those custom handheld displays... I get this cool holographic-like effect looking at the pictures from different angles on a laptop. The grids... Well, classic 2D game graphics are in grids, aren't they? It's probably considered safer to keep most of the edges of most of the background tiles dark in case they need to be placed on the surface, or to keep them from running together too much. That last one has to be from some new-fashioned 3D game.
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Player (206)
Joined: 5/29/2004
Posts: 5712
alden wrote:
Oh, no, sorry, each image is generated from an average of every screenshot from a system. So it's a bunch of games. Not just one.
Whoops, I didn't read this part until now. I read things out of order. Funny how Zero's life bar shows up so well, but then, he did get four games. I was debating whether the first one was Super Mario Land or a Legend of Zelda, but I guess they must both be in there, right? I want to see a Metroid in some of them, but I really don't know. The last one I'm starting to see a lot of Legend of Zelda: Ocarina of Time in. Did that one have a long frame war that produced a lot of screenshots for it? Then again, that's how those 3D games are, staring at someone's back and a skyline...
alden wrote:
Also, the game was meant to be played silently, to yourself. But say it silently, to yourself.
But if we play it silently, to ourselves, how will we know if we won?
put yourself in my rocketpack if that poochie is one outrageous dude
Active player (436)
Joined: 9/27/2004
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Location: Canada
Bag of Magic Food wrote:
But if we play it silently, to ourselves, how will we know if we won?
You can tell by the amount of noise you make while playing. If it is some, you have lost. I am on time out, by the way. So this doesn't count.
Editor, Skilled player (1441)
Joined: 3/31/2010
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Second one ought to be Harmony of Dissonance. Correct? /Or, Harmony had a different HUD. Aria of Sorrow instead. ...and Mega Man zero, And tons of other stuff, now that I take a closer look.
Player (121)
Joined: 2/11/2007
Posts: 1522
OK, yeah, so I was curious what a single movie average would look like. Here's the first level of SMB, more or less: I don't know, kind of lame. I did this the carpal tunnel inducing way of repeatedly hitting frame advance and screenshot hotkey 1000 times. Oh, and here's the magick part: 1 Download ImageMagick 2 Get a directory full of png's (or whatever) that are the same size 3 Go to that directory and type 'convert *.png -average output.png' 4 ??? 5 Profit It's pretty complicated. Lua has no screenshot support "AFAICT" but Warp's proposed solution is actually pretty rad. It would also probably be a hell of a lot faster than waiting a friggin hour while ImageMagick averages 1000 pictures. OK, someone who is smarter and has more time than me, let's see some more pictures! Oh, and everyone wins the game. If you are stumped, look at the file names.
I make a comic with no image files and you should read it. While there is a lower class, I am in it, and while there is a criminal element I am of it, and while there is a soul in prison, I am not free. -Eugene Debs
Tompa
Any
Editor, Expert player (2224)
Joined: 8/15/2005
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Location: Mullsjö, Sweden
Concept could be fun, but I think it's a better idea to find the game than which console it is.
Player (121)
Joined: 2/11/2007
Posts: 1522
OK, nevermind, apparently you can take screenshots via lua. It just wasn't in the built in documentation (or I was too drunk to see it).
I make a comic with no image files and you should read it. While there is a lower class, I am in it, and while there is a criminal element I am of it, and while there is a soul in prison, I am not free. -Eugene Debs
Active player (436)
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Location: Canada
Well I am a curious fellow. So I gave this a shot but I couldn't quite overcome my dumbness. I got hung up on step 4. The program did something, but it wasn't read all the images and spit out an average that's for sure. I should have tried out like 5 or 6 screenshots before I went whole hog. Anyway now I have 22,224 screenshots of Zelda 2. Maybe I'll make a fort out of them.
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Joined: 4/20/2005
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Here is an image averaging lua script (for FCEUX) I made. It's not perfect, but it works allright. Just enter start frame (startf) and end frame (endf) in the script while playing a movie. It is all frames between (and including) startf and endf that will be averaged. When the movie has reached frame endf, the emulator will be paused and the averaged image will be displayed on screen. Just make a screenshot to get the averaged image in .png-format.
Editor
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The last one has to be arcade.
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update: Kind of underwhelming!
Joined: 7/2/2007
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I find it interesting that the pause screen and consultation with elders come through so strongly. Also that apparently the TAS spends a lot of time with only 1 unit of magic left!
Pyrel - an open-source rewrite of the Angband roguelike game in Python.
Skilled player (1828)
Joined: 4/20/2005
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Location: Norrköping, Sweden
Here's a picture I made with my script. Guess the game! (not very hard)
Banned User
Joined: 12/23/2004
Posts: 1850
Randil wrote:
averaged image will be displayed on screen. Just make a screenshot to get the averaged image in .png-format.
Oh god, no, no, don't do that. Here is the same script running on FCEUX and VBA (with some minor tweaks for screen size): FCEUX | VBA Output it to a real format. Displaying it onscreen is a waste of the time you spend running it.
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Player (121)
Joined: 2/11/2007
Posts: 1522
First 4000 frames of metroid any% made with a 4 line lua script that dumps screenshots. Will check out new script soon! I was contemplating how to do something like that...
I make a comic with no image files and you should read it. While there is a lower class, I am in it, and while there is a criminal element I am of it, and while there is a soul in prison, I am not free. -Eugene Debs
Skilled player (1828)
Joined: 4/20/2005
Posts: 2161
Location: Norrköping, Sweden
Xkeeper wrote:
Output it to a real format. Displaying it onscreen is a waste of the time you spend running it.
This was more a case of my limited skill in lua programming. I realize that displaying it on screen is quite an ugly solution. I'm guessing the best solution would be to directly convert the array u, containing all information about the averaged picture, into an image file, without displaying it first. However, I don't know how to do that, or if a lua script even can do something like that (if someone knows, I would be very interested). However, I did know the commands to display it on screen, so I went with that.
Patashu
He/Him
Joined: 10/2/2005
Posts: 4045
I googled for some libraries. Will this work? http://lua-gd.luaforge.net/manual.html#api.output
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