Much of the information I posted in this blog years ago is still useful today. Image processing theory hasn't been completely overturned since then, and I'm still talking about MATLAB after all. For the benefit of readers who have joined the party more recently, I will occasionally recap the useful bits that I posted about five years ago.
In May, June, and July of 2006 I was still writing posts in my spatial transforms series (inverse mapping; where is the output image; findbounds; translation confusion; and handling noninvertible cases).
I described an algorithm trick for computing fast local sums.
I showed how to use regionprops to compute the centroids of the pegs in this MRI phantom:
files = dir('*.JPG'); for k = 1:numel(files) rgb = imread(files(k).name); rgb = rgb(1:1800, 520:2000, :); rgb = imresize(rgb, 0.2, 'bicubic'); imwrite(rgb, ['cropped\' files(k).name]); end
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