I would like to zoom the image to particular portion(to specified coordinates) of the image. 
I have an image, i displayed it in android image view with full screen. when i click on a button i would like to zoom the image to specified coordinates of the image.lets say coordinates i have is left:500,top:50,width:60 and height:20. I want the full image zoom to specified coordinates and fit this sub image in center of the image view. 

Currently i am doing it by cropping the image to specified coordinates. I will get small image. I am displaying it in image view. But i think it is not as good solution. 

Can some one help me to find the way to implement the zoom functionality.