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POSIFT implementation Python error
 

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    <p>I am using the SIFT implementation from vlfeat.org in Python, vlfeat.py. </p> <p>I keep getting an error stating <strong>too many indices</strong> and the line number indicates that the error occurs when <code>read_features_from_file()</code> is executed. </p> <p>I also noticed that the file <em>features1.sift</em> is empty, meaning something goes wrong when <code>executing process_image()</code>. </p> <p><strong>Code Snippet</strong> :</p> <pre><code>from PIL import Image from pylab import * import vlfeat as vlf vlf.process_image('semper1.jpg','features1.sift', params="--edge-thresh 10 --peak-thresh 5") l1,d1 = vlf.read_features_from_file('features1.sift') image = array(Image.open('semper1.jpg')) vlf.process_image('semper2.jpg','features2.sift', params="--edge-thresh 10 --peak-thresh 5") l2,d2 = vlf.read_features_from_file('feautures2.sift') image2 = array(Image.open('semper2.jpg')) matches = vlf.match(d1,d2) imshow(image) for k in xrange(len(matches)): if matches[k] &gt; 0: plot(l1[k, 0], l1[k, 1], 'r.') plot([l1[k,0], l2[matches[k,0],0]], [l1[k,1], l2[matches[k,0],1]], 'b-') show() </code></pre> <p>Here's what process_image looks like: </p> <pre><code>def process_image(imagename,resultname,params="--edge-thresh 10 --peak-thresh 5"): """ process an image and save the results in a file""" if imagename[-3:] != 'pgm': #create a pgm file im = Image.open(imagename).convert('L') im.save('tmp.pgm') imagename = 'tmp.pgm' cmmd = str("sift "+imagename+" --output="+resultname+ " "+params) os.system(cmmd) print 'processed', imagename, 'to', resultname </code></pre>
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    1. COIs process_image possibly occur in async?
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      1. USJono
    2. COThis is what process_image() look like:def process_image(imagename,resultname,params="--edge-thresh 10 --peak-thresh 5"): """ process an image and save the results in a file""" if imagename[-3:] != 'pgm': #create a pgm file im = Image.open(imagename).convert('L') im.save('tmp.pgm') imagename = 'tmp.pgm' cmmd = str("sift "+imagename+" --output="+resultname+ " "+params) os.system(cmmd) print 'processed', imagename, 'to', resultname
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    3. COIt'd be better to add it to the original post, where you can format it to code.
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