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Author Topic: Four Level Grayscale Video  (Read 32527 times)

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Offline ztrumpet

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Re: Four Level Grayscale Video
« Reply #15 on: January 29, 2011, 02:13:20 pm »
Quote from: JosJuice on January 29, 2011, 02:02:11 pm
I'm surprised no one thought of rickrolls yet :P
Believe me, I thought of them and decided that I'd wait for sound. :P
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Offline thepenguin77

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Re: Four Level Grayscale Video
« Reply #16 on: January 29, 2011, 04:04:11 pm »
Quote from: ztrumpet on January 29, 2011, 02:13:20 pm
Quote from: JosJuice on January 29, 2011, 02:02:11 pm
I'm surprised no one thought of rickrolls yet :P
Believe me, I thought of them and decided that I'd wait for sound. :P
Quote from: thepenguin77 on January 28, 2011, 11:46:25 pm
Even one sync'd with another calculator for sound (bet you can't guess what that is ;)).

kindermoumoute, you got the uncompressed version that I uploaded first. Redownload the video file.
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Offline Builderboy

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Re: Four Level Grayscale Video
« Reply #17 on: January 29, 2011, 04:06:10 pm »
Wow this is astounding O.O the speed and quality you get, as well as the filesize is really amazing!
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Offline ztrumpet

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Re: Four Level Grayscale Video
« Reply #18 on: January 29, 2011, 04:56:05 pm »
Quote from: thepenguin77 on January 29, 2011, 04:04:11 pm
Quote from: ztrumpet on January 29, 2011, 02:13:20 pm
Quote from: JosJuice on January 29, 2011, 02:02:11 pm
I'm surprised no one thought of rickrolls yet :P
Believe me, I thought of them and decided that I'd wait for sound. :P
Quote from: thepenguin77 on January 28, 2011, 11:46:25 pm
Even one sync'd with another calculator for sound (bet you can't guess what that is ;)).
Oh no.  I think I just guessed it. :P
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Offline thepenguin77

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Re: Four Level Grayscale Video
« Reply #19 on: January 29, 2011, 05:30:47 pm »
So it turns out that when super converts a video to .jpg's, it doesn't change the frame rate to what you want. So here is a video running at 29 fps. I couldn't think of anything cooler, so this is what you get.

Edit:
    Again, this looks better on wabbit than in the screenshot.
« Last Edit: January 29, 2011, 05:31:26 pm by thepenguin77 »
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Offline Darl181

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Re: Four Level Grayscale Video
« Reply #20 on: January 29, 2011, 05:31:53 pm »
:w00t:
Calc-based rickroll, here I come!
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Offline yunhua98

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Re: Four Level Grayscale Video
« Reply #21 on: January 29, 2011, 05:33:10 pm »
Quote from: thepenguin77 on January 29, 2011, 05:30:47 pm
So it turns out that when super converts a video to .jpg's, it doesn't change the frame rate to what you want. So here is a video running at 29 fps. I couldn't think of anything cooler, so this is what you get.

Edit:
    Again, this looks better on wabbit than in the screenshot.

doesn't Wabbit show the same thing as the screenies?

EDIT: I love messing with Wabbit Settings.  :D
« Last Edit: January 29, 2011, 05:39:27 pm by yunhua98 »
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Offline Builderboy

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Re: Four Level Grayscale Video
« Reply #22 on: January 29, 2011, 05:53:06 pm »
haha messing with the decay time?  It looks even better! O.O I wonder what it looks like on calc
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Offline yunhua98

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Re: Four Level Grayscale Video
« Reply #23 on: January 29, 2011, 05:54:01 pm »
*delay time lol

I also set the greyscale to Game grey and changed t to 30 shades of grey
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Offline DJ Omnimaga

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Re: Four Level Grayscale Video
« Reply #24 on: January 29, 2011, 06:22:09 pm »
Now I hope people at school won't put questionable content on their calc. O.O
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Offline Xeda112358

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Re: Four Level Grayscale Video
« Reply #25 on: January 29, 2011, 11:35:22 pm »
Oh jeez... I can see it already... gray scale 3116's and 8's and 4's and 3's oh jeez!

Sorry, it is kind of an inside joke...
* Xeda112358 likes numbers >.>
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Offline kindermoumoute

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Re: Four Level Grayscale Video
« Reply #26 on: January 30, 2011, 05:47:02 am »
Quote from: thepenguin77 on January 29, 2011, 05:30:47 pm
Edit:
    Again, this looks better on wabbit than in the screenshot.


 :o
« Last Edit: January 30, 2011, 05:47:50 am by kindermoumoute »
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Offline Xeda112358

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Re: Four Level Grayscale Video
« Reply #27 on: January 30, 2011, 11:35:42 am »
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Offline thepenguin77

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Re: Four Level Grayscale Video
« Reply #28 on: January 30, 2011, 08:57:36 pm »
Oops, I accidentally left off the last 62 frames of the video. (fourvid.exe <source folder> <output file> <number of frames>). So here is the full video in 12 shades of gray.

Edit:
    Has anyone tried this on a real calculator?
« Last Edit: January 30, 2011, 08:58:00 pm by thepenguin77 »
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Offline FloppusMaximus

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Re: Four Level Grayscale Video
« Reply #29 on: January 30, 2011, 09:36:11 pm »
I imagine dithering would help.  It might also be interesting to consider adjusting the LCD contrast.  And now I'm wondering if there would be enough CPU time to do any more sophisticated decompression.

Also, the Old Spice example looks like it had some serious MPEG and/or JPEG compression artifacts to begin with.  Or maybe the conversion is making the existing artifacts a lot worse.
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