ImageView image = new ImageView(context);
image.setImageURI(Uri.parse("/sdcard/image.jpg"));

답글 감사드립니다^^
로딩 시 가장 처음에는 기본이미지를 보여주고, 그 뒤에 로딩이 끝나면 원본이미지로 순차적으로 교체해주는 방식에 대한 질문입니다.

 
        ImageTask task = new ImageTask(image);
        task.execute("/sdcard/패스");
or

        ImageTask task = new ImageTask(image);
        task.execute("http://주소");

 public class ImageTask extends AsyncTask<String, Integer, Drawable> {

    private ImageView view;

    public ImageTask(ImageView v) {
        view = v;
    }
    
    public Drawable downloadImage(String uri) {
        URL url = null;
        try {
            url = new URL(uri);
            InputStream is = url.openStream();
            Drawable draw = Drawable.createFromStream(is, "");
//            view.setTag(url.toExternalForm());
            is.close();
            return draw;
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
    
    public Drawable loadImage(String path) {
        try {
            InputStream is = new FileInputStream(path);
            Drawable draw = Drawable.createFromStream(is, "");
//            view.setTag(url.toExternalForm());
            is.close();
            return draw;
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 独自スレッドでバックグラウンド処理
     * @param result
     */
    protected Drawable doInBackground(String... uri) {
        String regex = "\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

        Pattern patt = Pattern.compile(regex);
        Matcher matcher = patt.matcher(uri[0]);

        if (matcher.matches()) {
            return downloadImage(uri[0]);
        } else {
            return loadImage(uri[0]);
        }
    }
    
    /**
     * 画面描画できるmainスレッドで実行したい処理
     */
    protected void onPostExecute(Drawable draw) {
        view.setImageDrawable(draw);
    }
}

답변 감사드립니다 ^^
원하는 대로 처리되었습니다!
근데 메모리이슈는 좀 생각해봐야될거같네요 ㅠㅠ