UIImage *img; CGImageRef cgImg; CGImageRef chipImg; CGRect cutRect; CGRect dispRect; CGContextRef context; img = [UIImage imageNamed:@"hoge.png"]; cgImg = CGImageRetain(img.CGImage); // 切り抜き座標、幅、高さ cutRect = CGRectMake(0, 0, 32, 32); chipImg = CGImageCreateWithImageInRect(cgImg, cutRect); // 表示座標 dispRect = CGRectMake(100, 100, 32, 32); context = UIGraphicsGetCurrentContext(); CGContextDrawImage(c