Mercurial > ift6266
diff scripts/nist_read2.py @ 107:a9b87b68101d
Ajouté un script pour visualiser les ensembles de données générés enregistrés dans le format filetensor (nist_read2.py)
author | boulanni <nicolas_boulanger@hotmail.com> |
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date | Mon, 15 Feb 2010 15:35:17 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/nist_read2.py Mon Feb 15 15:35:17 2010 -0500 @@ -0,0 +1,28 @@ +#!/usr/bin/env python + +from pylearn.io import filetensor as ft +import pylab, numpy + +datapath = '/data/lisa/data/ift6266h10/train_' + +f = open(datapath+'data.ft') +d = ft.read(f) + +f = open(datapath+'labels.ft') +labels = ft.read(f) + +def label2chr(l): + if l<10: + return chr(l + ord('0')) + elif l<36: + return chr(l-10 + ord('A')) + else: + return chr(l-36 + ord('a')) + +for i in range(min(d.shape[0],30)): + pylab.figure() + pylab.title(label2chr(labels[i])) + pylab.imshow(d[i].reshape((32,32))/255., pylab.matplotlib.cm.Greys_r, interpolation='nearest') + +pylab.show() +