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A series of machine learning tutorials for Torch7
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Error tutorials while preprocessing data: normalize all three channels locally #22

Open vvaquero opened 9 years ago

vvaquero commented 9 years ago

Hi!, first of all saying that I'm new using torch and itorch, but I have been trying a couple of afternoons to make this tutorial work and I am still getting an error. In tutorial 2 part 1, when loading the data I have no problems doing it from console...but when I try to do it from the itorch notebook to visualize the data, I am getting the following error:

Out[1]:

==> processing options
==> downloading dataset ==> using reduced training data, for fast experiments
==> loading dataset

Out[1]:

==> preprocessing data

Out[1]:

==> preprocessing data: colorspace RGB -> YUV

Out[1]:

==> preprocessing data: normalize each feature (channel) globally

Out[1]:

==> preprocessing data: normalize all three channels locally

expected arguments: [Generator] [double] [double] | DoubleTensor [Generator] [double] [double] stack traceback: [C]: at 0x7fcf1f980750 [C]: in function 'uniform' ...torch/install/share/lua/5.1/nn/SpatialConvolutionMap.lua:103: in function 'reset' ...torch/install/share/lua/5.1/nn/SpatialConvolutionMap.lua:73: in function 'init' /home/vvaq/torch/install/share/lua/5.1/torch/init.lua:51: in function </home/vvaq/torch/install/share/lua/5.1/torch/init.lua:47> [C]: in function 'SpatialConvolutionMap' ...all/share/lua/5.1/nn/SpatialSubtractiveNormalization.lua:35: in function 'init' /home/vvaq/torch/install/share/lua/5.1/torch/init.lua:51: in function </home/vvaq/torch/install/share/lua/5.1/torch/init.lua:47> [C]: in function 'SpatialSubtractiveNormalization' ...all/share/lua/5.1/nn/SpatialContrastiveNormalization.lua:23: in function '__init' /home/vvaq/torch/install/share/lua/5.1/torch/init.lua:51: in function </home/vvaq/torch/install/share/lua/5.1/torch/init.lua:47> ... [string "local f = function() return dofile '1_data.lu..."]:1: in main chunk [C]: in function 'xpcall' /home/vvaq/torch/install/share/lua/5.1/itorch/main.lua:177: in function </home/vvaq/torch/install/share/lua/5.1/itorch/main.lua:143> /home/vvaq/torch/install/share/lua/5.1/lzmq/poller.lua:75: in function 'poll' .../vvaq/torch/install/share/lua/5.1/lzmq/impl/loop.lua:307: in function 'poll' .../vvaq/torch/install/share/lua/5.1/lzmq/impl/loop.lua:325: in function 'sleep_ex' .../vvaq/torch/install/share/lua/5.1/lzmq/impl/loop.lua:370: in function 'start' /home/vvaq/torch/install/share/lua/5.1/itorch/main.lua:344: in main chunk [C]: in function 'require' [string "arg={'/home/vvaq/.ipython/profile_default..."]:1: in main chunk

Did anyone have a similar problem?. I have checked and reinstall components... everything seems OK. More details:

Thank you for the help!