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I own two feature length films on film... The first one is "Christian the Lion", on 16mm, which is about a lion cub bought by furniture salesmen in London, and how they got him back to Africa. I've also been working on a film scanner, to get my pile of film digitized. So here is frame 4758 or so. It has really bad red fade.
The other film I have is "Flash Gordon" (the one with the soundtrack by Queen), on 35mm. Also faded... :-P
The other film I have is "Flash Gordon" (the one with the soundtrack by Queen), on 35mm. Also faded... :-P
Category All / All
Species Unspecified / Any
Size 1278 x 950px
File Size 90 kB
The /computer/ is scanning frame by frame. q-:
Its one frame about every 2 seconds, so it'll take two days to do 2000' of 16mm (about 55 minutes at 24 fps). Then you get a directory with 1600000 files in it (image and sound, per frame). The really cool bit is reassembling the optical soundtrack from all the individual frames.
Its one frame about every 2 seconds, so it'll take two days to do 2000' of 16mm (about 55 minutes at 24 fps). Then you get a directory with 1600000 files in it (image and sound, per frame). The really cool bit is reassembling the optical soundtrack from all the individual frames.
I put the original at http://www.bobdbob.com/~protius/mis.....rame004758.ppm but its 18 MB and didn't really compress, so there is also a jpeg if you don't want to deal with 16 bit/component ppm files. The color is linear, gamma==1.
The prototype is nearly done, though with an undersized camera. There is operable and then there is all the little bits like where to put the spare gates etc. I'm hoping to start talking about it publicly in a week or three.
The prototype is nearly done, though with an undersized camera. There is operable and then there is all the little bits like where to put the spare gates etc. I'm hoping to start talking about it publicly in a week or three.
That PPM was a much better starting point than the JPG. See http://tjcoyote.com/misc/frame004758-edit4.jpg
While I can get it looking passable to my eyes, I have no idea about the accuracy of what I'm doing. Though I didn't convert to greyscale and colorize, the fiddling I did may have had that same effect. Still, the guy's face and the lion's tongue does show a hint of color differentiation compared to the guy's hair and the lion's fur.
Let me know if you'd like to pursue this further...
While I can get it looking passable to my eyes, I have no idea about the accuracy of what I'm doing. Though I didn't convert to greyscale and colorize, the fiddling I did may have had that same effect. Still, the guy's face and the lion's tongue does show a hint of color differentiation compared to the guy's hair and the lion's fur.
Let me know if you'd like to pursue this further...
The color fade is caused by defective chemistry in the film (specificly, Eastman color). So it was correctly processed but after a couple of years (10 or so) the dyes start to fade to clear. The magenta dye is the most robust, so you end up with a pink image.
Kodachrome and ektachrome don't fade. Though if they are processed incorrectly they turn orange.
Kodachrome and ektachrome don't fade. Though if they are processed incorrectly they turn orange.
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