On Sep 7, 2012, at 11:04 AM, Eric Firing wrote:
> On 2012/09/07 4:00 AM, Benjamin Root wrote:
>>
>>
>> On Fri, Sep 7, 2012 at 9:49 AM, Shahar Shani-Kadmiel
>> <kadm...@post.bgu.ac.il <mailto:kadm...@post.bgu.ac.il>> wrote:
>>
>> On Sep 7, 2012, at 4:25 PM, Benjamin Root wrote:
>>
>>>
>>>
>>> On Fri, Sep 7, 2012 at 8:44 AM, Shahar Shani-Kadmiel
>>> <kadm...@post.bgu.ac.il <mailto:kadm...@post.bgu.ac.il>> wrote:
>>>
>
<snip>
> Normalization has to handle all sorts of inputs--masked or not, all
> sorts of numbers, scalar or array--and it is much easier to do this
> efficiently if all these possibilities are reduced to a very few at the
> start. Specifically, it needs to supply a copy of the input (so that
> normalization doesn't change the original) in a floating point masked
> array, using float32 if possible for space efficiency. It needs to keep
> track of whether the input was a scalar, so that normalization can
> return a scalar when given a scalar input.
>
> Eric
Another option as I understand it is to pass in a 1D (greyscale) or 3d (color)
array (where the 3rd dimension is RGB and optionally A) of type uint8(?). This
array does not need to get normalized, it will be displayed as raw pixel
values. I don't remember if you also have to specifically tell it not to
normalize the data.
But the easier answer for your case would probably be imshow(data[::10,::10])
which will take every 10th element in x and y thus reducing the size by a
factor of 100 (depending on the size of your data you could use ::2 or ::50,
etc)
Ethan
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