How to resize the image pixels in xamarin forms - image

My actual Image is
Here I need to resize the image 140*80(Width*height)
But after resize the circle in the image becomes oval how to prevent that.

Your current image resolution is 700*312 has a ratio of 1:2.2435897435897435897435897435897..
The resolution you are trying to get is 140*80 has a ratio of 1:1.75.
In order to get a perfect circle, you must maintain the same ratio between the images.
If acceptable, try resizing your image to 140*62.4 (62.4 = 140/(700/312)).
More info about Aspect Ratio on Wikipedia .
Specifically for Xamarin, please show us what components are you using, or some example code so answers could be more specific.

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Whenever I use the cover property, it always seems to miss out most the image.
Thanks,
Steve
Used photoshop to crop the image to a 16:9 ratio, 1920 x 1080 pixel dimension for best image quality. Seems to work well with my website, hopefully the file size (507kb) won't be an issue on page loading response times.
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Screenshot of the issue: http://s1.bild.me/bilder/260513/6875414Screen_Shot_2014-06-29_at_23.19.34.png
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i think this may work
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