I want to do the same thing as asked in this question. In my App i want to crop the image like we do image cropping in FaceBook can any one guide me with the link of good tutorial or with any sample code. The Link which i have provided will completely describe my requirement.
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CGRect rectImage = CGRectMake(p1.x,p1.y, p2.x - p1.x, p4.y - p1.y);
You may create new image with any properties. Here is my function, witch do that. you just need to use your own parameters of new image. In my case, image is not cropped, I just making some effect, moving pixels from there original place to another. But if you initialize new image with another height and width, you can just copy from any range of pixels of old image you need, to new one: