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by Aditya

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I'd like to transform an image so that it can be mounted on a sphere. I'd like to use an image of a map (see the One Piece world map on the image), but it could be anything. Here is a kind of Family Picnic Photo that I could use, (this isn't my family, is just a Google result). I'd like to do this as a gift for my cousin on his birthday. I'm beginner on photo processing and manipulation and normally I use Linux, but every suggestion is welcome.

One Piece World Map

I would like a way to transform this image or photo into a "globular" image/photo, to put on something like this:

Real World Map

Is there any software that can do this for me? If not, how would I go about computing the necessary slices of my image to fit?

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Can you give a practical example of how this might really be useful for something other than a map? –  mattdm Nov 19 '11 at 19:54
    
@mattdm I'm thinking print a photo, if all family in a panoramic version and put it on a globe. I'm not sure if will works well but I'd like to try. –  GarouDan Nov 19 '11 at 20:01
    
Okay. :) Put that in the question, and I think we have no doubt as to its on-topicness. –  mattdm Nov 19 '11 at 20:02
    
@mattdm I edited, thanks. –  GarouDan Nov 19 '11 at 20:10
    
This answer on GIS SE might be of interest –  Jakub Nov 19 '11 at 23:39

1 Answer 1

up vote 14 down vote accepted

IP-Slicer perl script can create slices which can stuck together into a ball. You can define the number of slices.

The following command will create 12 slices, where the sphere circumference is 1500 pixels.

sphere-slicer.pl 12 1500 sampleimage.jpg

Sample input:

input for IP-Slicer

Output (12 images):

output1 output2 output3 output4 output5 output6 output7 output8 output9 output10 output11 output12

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Slick tool and, if he's on Linux, should be easy to get it going. –  John Cavan Nov 19 '11 at 21:39
1  
@asalamon74 Very interesting. I think this solve my entire question. Really thanks. –  GarouDan Nov 20 '11 at 14:38
    
If I have a globe with x cm of perimeter, what the number of pixels of this globe? –  GarouDan Nov 20 '11 at 14:53
    
That depends on the printing. Check this question about dpi: photo.stackexchange.com/questions/2041/what-does-dpi-mean –  asalamon74 Nov 20 '11 at 15:12
    
I have a little difficult to make this script works. But it runs ok to me now. Thx @asalamon74 . But it's unclear to me wich "sphere circumpherence" parameter pass to the script to print the image and fit it exactly on the globe. I had find this site and I got 1500 pixel (X) = 39.6875 centimeter, so your outputs it's for a globe with 39.7 cm of circumpherece? Am I need the dpi resolution of a image before run the script? Can you explain a bit more how to do this? =) –  GarouDan Nov 22 '11 at 10:22

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