[Tutor] [tutor] Finding image statistics

[Kent Johnson]

Varsha Purohit wrote:
> of this module in this application.
> 
> I want to find other image statistics such as finding number of pixels 
> which exist after taking difference between two images, getting sum of 
> all pixels and area of pixels that are in that image etc.

I don't think you can get all of that out of ImageStat, it is pretty basic.

In [18]: import Image, ImageStat
In [19]: i=Image.open('kent.jpg')
In [21]: s=ImageStat.Stat(i)
In [23]: s.extrema
Out[23]: [(0, 255), (0, 255), (0, 251)]
In [24]: s.count
Out[24]: [43200, 43200, 43200]
In [25]: s.mean
Out[25]: [116.61453703703704, 103.23967592592592, 97.624606481481479]

etc.

Kent