Redimenciomar imagen / resize Image / UIImage

    UIImage*imgStorage = [self resizeImage:imgStorage2];


-(UIImage *)resizeImage:(UIImage *)image {
    int width, height;
   
    width = 300;
   
    int w_porcentaje = ((width*100)/image.size.width);
    int h = ((image.size.height*w_porcentaje)/100);
   
    height=h;
    CGImageRef imageRef = [image CGImage];
    CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(imageRef);
   
    //if (alphaInfo == kCGImageAlphaNone)
    alphaInfo = kCGImageAlphaNoneSkipLast;
   
    CGContextRef bitmap = CGBitmapContextCreate(NULL, 300, 200, CGImageGetBitsPerComponent(imageRef), 4 * width, CGImageGetColorSpace(imageRef), alphaInfo);
    CGContextDrawImage(bitmap, CGRectMake(0, 0, width, height), imageRef);
    CGImageRef ref = CGBitmapContextCreateImage(bitmap);
    UIImage *result = [UIImage imageWithCGImage:ref];
   
    CGContextRelease(bitmap);
    CGImageRelease(ref);
   
    return result; 
}