Image Correction

These images came from my “dot” (made by kogeto. link)

The app doesn’t seem to be working quite as well as it used to (crashes out), and well requires me to take the case off my iPhone; I am wondering how to turn these images into panoramas using ImageMagick or GD from the command line?

Any thoughts?

4 thoughts on “Image Correction”

John
2013-08-17, 20:07

You could try fisheye2rect from http://www.fmwconcepts.com/imagemagick/fisheye2rect/index.php

As a test try with just the default options

./fisheye2rect input.gif output.jpg

that should open out the righthand side quarter and make flat.

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Jim Allanson
2013-08-17, 22:27

Someone used the dot with a Raspberry Pi: http://imgur.com/a/4ptjR

He used Imagemagick with the command:
convert test.jpg -filter Cubic -distort DePolar ‘555 295 1168,1087 -10,370’ -resize 100×20% test.png

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Yarek
2013-08-17, 22:33

I guess you could cut out the dohnut as it has predefined dimensions, and then unwrap it just by going through each pixel, compensation for the stretching that will happen at the inner circle. The maths for this should be relatively simple

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Skippy Post author
2013-08-20, 11:10

This came up in my RSS feed today: http://www.raspberrypi.org/archives/4607

That links to: http://www.kscottz.com/dewarped-panoramic-images-from-a-raspberrypi-camera-module/

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4 thoughts on “Image Correction”