Re-sampling Images in Matlab
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I want to re-sample the remotely sensed images which are usually very large from 30m to 15m.Does this simply means re-sizing it using imresize function or is their any other method for re-sampling such images in Matlab??
3 个评论
Image Analyst
2012-4-6
What is m? Meters? Megapixels (usually designated MP)?
Ankit Verma
2012-4-7
Walter Roberson
2012-4-7
You want to re-sample from 30 meters resolution to 15 meters resolution? That is, you want to double the resolution of the images? Double _exactly_ ?
回答（1 个）
Walter Roberson
2012-4-6
0 个投票
There are methods involving fft2() and ifft2(); there are methods involving wavelets; there are methods involving extracting subsections of the array; there are methods involving interp2(); there are probably other methods.
Myself, I would only bother to consider alternatives to imresize() if I was doing straight-forward half-resolution, or if I had more time (to do the programming) than I had money (to purchase the Image Processing Toolbox.)
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2012-4-6
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