12.16

软件设计

enhanceButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// 图像清晰度增强按钮点击事件处理逻辑
try {
if (accessToken == null) {
accessToken = getAccessToken();
}
byte[] enhancedImageData = enhanceImage(accessToken);
// 显示增强后的图片并进行缩放
ImageIcon enhancedImageIcon = new ImageIcon(enhancedImageData);
Image enhancedImage = enhancedImageIcon.getImage();
int enhancedWidth = enhancedImage.getWidth(null);
int enhancedHeight = enhancedImage.getHeight(null);

                int newWidth = 300;
                int newHeight = (int) (enhancedHeight * ((double) newWidth / enhancedWidth));

                Image scaledEnhancedImage = enhancedImage.getScaledInstance(newWidth, newHeight, Image.SCALE_DEFAULT);
                ImageIcon scaledEnhancedImageIcon = new ImageIcon(scaledEnhancedImage);
                enhancedImageLabel.setIcon(scaledEnhancedImageIcon);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }

    });


    frame.add(imageLabel);
    frame.add(enhancedImageLabel);
    frame.add(addButton);
    frame.add(enhanceButton);
    frame.setLayout(null);
    frame.setVisible(true);
}

/**
 * 调用百度API对图像进行清晰度增强
 *
 * @param accessToken 鉴权签名（Access Token）
 * @return 增强后的图片数据
 * @throws IOException IO异常
 */
static byte[] enhanceImage(String accessToken) throws IOException {
    MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
    RequestBody body = RequestBody.create(mediaType, "");
    Request request = new Request.Builder()
            .url("https://aip.baidubce.com/rest/2.0/image-process/v1/image_definition_enhance?access_token=" + accessToken)
            .method("POST", body)
            .addHeader("Content-Type", "application/x-www-form-urlencoded")
            .addHeader("Accept", "application/json")
            .build();
    Response response = HTTP_CLIENT.newCall(request).execute();

    byte[] enhancedImageData = response.body().bytes();
    response.close();

    return enhancedImageData;
}

/**
 * 从用户的AK，SK生成鉴权签名（Access Token）
 *
 * @return 鉴权签名（Access Token）
 * @throws IOException IO异常
 */
static String getAccessToken() throws IOException {
    MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
    RequestBody body = RequestBody.create(mediaType, "grant_type=client_credentials&client_id=" + API_KEY
            + "&client_secret=" + SECRET_KEY);
    Request request = new Request.Builder()
            .url("https://aip.baidubce.com/oauth/2.0/token")
            .method("POST", body)
            .addHeader("Content-Type", "application/x-www-form-urlencoded")
            .build();
    Response response = HTTP_CLIENT.newCall(request).execute();
    return new JSONObject(response.body().string()).getString("access_token");
}

}