How to extract (x,y) coordinates of the boundary of a .tif image?

[Pythonista]

I want to get the (x,y) coordinates of the boundary of this TIF image - goo.gl/Uai8lR

I am using Python notebook in Anaconda distribution. I just need the height in pixels, so far I have used this code -

foo = misc.imread("90.tif")
prof = foo.sum(axis = 0)
prof = prof[:,1]/127

It reads the green channel of RGB and dividing by 127 gives the height in pixel. But it does not capture overhang regions. I think it will be a good idea to extract the (x,y) coordinates instead.

Any help is appreciated.

[Skaperen]

do you have a question?

[Pythonista]

do you have a question?

Yes, it's in the title. 

[Skaperen]

that kind o question needs to go to the bar.

[Larz60+]

This seems to have the answer you seek: http://stackoverflow.com/questions/15800...to-memory/

[Pythonista]

This seems to have the answer you seek: http://stackoverflow.com/questions/15800...to-memory/

That question is about getting the image size, i.e. 800 * 600 pixels.

I want to get the (x,y) coordinates (in terms of pixels) of the pixels located on the boundary (red line). The original TIF file is here - goo.gl/Uai8lR

[Larz60+]

Sorry, I saw a method of doing that in PyGame here http://stackoverflow.com/questions/20165...e-position
You may be able to reverse engineer the code for rect if you don't find an easier method.

[micseydel]

that kind o question needs to go to the bar.

If we're going to end up with Python code, the Bar isn't the right place.

[Ofnuts]

Using the pillow (PIL) module:

from PIL import Image
im=Image.open('image.tif')
im.size

Output:
(127, 16)

[Skaperen]

This seems to have the answer you seek: http://stackoverflow.com/questions/15800...to-memory/

That question is about getting the image size, i.e. 800 * 600 pixels.

I want to get the (x,y) coordinates (in terms of pixels) of the pixels located on the boundary (red line). The original TIF file is here - goo.gl/Uai8lR

maybe the question should have been:  how do i get the border outline coordinates of this object (which object?) in an image?

do you want every pixel or just the points to draw lines from and to?