Hi Rohit,
While this is a very interesting question, it would probably belong better
on Stack Overflow <http://stackoverflow.com>, since it's a question
requiring 1-1 support. We do monitor Stack Overflow for good questions in
the tags related to the Google Cloud Platform, so you can either get an
answer by a member of support or from the community itself.
I would suggest separating your two questions into two separate posts.
Remember to include enough code to your question about mean to have a
Minimal example to reproduce your issue, as it will tremendously help other
users in helping you out.
Cheers!
On Sunday, September 27, 2015 at 2:28:33 AM UTC-4, Rohit Jain wrote:
>
> Hi,
>
> can anyone help me with the below code I am some wearied output..don' know
> what exactly to do...
> Also, can someone tell me that how to load an image collection like
> ImageCollection('?(asking about this)') and from the image collection how
> to know which image is where with name.
> I am working on linux and using python.
>
>
> import ee
> ee.Initialize()
> """landsat5Toa =
> ee.ImageCollection('LC80150062013111LGN01').filterDate('2014-3-25').select('B[1]')"""
>
> img = ee.Image('LC80150062013111LGN01').select('B1').unitScale(0, 255)
>
> meanReducer = ee.Reducer.mean()
> sigmaReducer = ee.Reducer.stdDev()
> region = ee.Geometry.Rectangle(77.00133,-51.30404,74.69582,-41.38993 )
> scale = 10000
> mean = img.reduceRegion(meanReducer, region, scale)
> sigma = img.reduceRegion(sigmaReducer, region, scale)
> """mean = landsat5Toa.get('bands')"""
>
>
>
> def stretch(img, mean, sigma):
>
> return ee.Image(0).expression(
>
>
> '((img - mean) / (sigma * 3)) + 0.5', {
> 'img': img,
> 'mean': ee.Image.constant(mean),
> 'sigma': ee.Image.constant(sigma)
> })
>
> print(mean.getInfo())
> print(sigma.getInfo())
>
>
>
>
>
>
>
>
> Output
>
> {u'B1': None}
> {u'B1': None}
>
>
>
> I dont know where I am haveing a problem.
>
> Thank You
>
>
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