Resize Image

Resize Image.m

// Resize Image
+ (UIImage *)ResizeImage:(UIImage*)originalImage scaledToSize:(CGSize)size
{
    //avoid redundant drawing
    if (CGSizeEqualToSize(originalImage.size, size))
    {
        return originalImage;
    }
    
    //create drawing context
    UIGraphicsBeginImageContextWithOptions(size, NO, 0.0f);
    
    //draw
    [originalImage drawInRect:CGRectMake(0.0f, 0.0f, size.width, size.height)];
    
    //capture resultant image
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    //return image
    return image;
}