灰度转换逻辑优化

src/main/java/icu/namophice/inkphotoalbum/business/MasterService.java

@@ -7,7 +7,6 @@ import icu.namophice.inkphotoalbum.utils.ImageUtil;
 
 import java.awt.image.BufferedImage;
 import java.io.File;
-import java.security.cert.X509Certificate;
 import java.util.Arrays;
 import java.util.Random;
 
@@ -90,28 +89,4 @@ public class MasterService {
         }
     }
 
-    /**
-     * 跳过SSL证书验证
-     * @throws Exception
-     */
-    private static void trustAllHttpsCertificates() throws Exception {
-        javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];
-        javax.net.ssl.TrustManager tm = new miTM();
-        trustAllCerts[0] = tm;
-        javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext.getInstance("SSL");
-        sc.init(null, trustAllCerts, null);
-        javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
-    }
-
-    private static class miTM implements javax.net.ssl.TrustManager, javax.net.ssl.X509TrustManager {
-        @Override
-        public void checkClientTrusted(X509Certificate[] chain, String authType) {}
-        @Override
-        public void checkServerTrusted(X509Certificate[] chain, String authType) {}
-        @Override
-        public X509Certificate[] getAcceptedIssuers() {
-            return null;
-        }
-    }
-
 }

src/main/java/icu/namophice/inkphotoalbum/config/DefaultConfig.java

@@ -17,8 +17,7 @@ public class DefaultConfig {
             "https://www.dmoe.cc/random.php",
             "https://cdn.seovx.com/d/?mom=302",
             "https://api.paugram.com/wallpaper/",
-            "https://api.yimian.xyz/img",
-            "https://img.xjh.me/random_img.php"
+            "https://api.yimian.xyz/img"
     };
 
     public static final String configFileName = "conf.json";

src/main/java/icu/namophice/inkphotoalbum/utils/ImageUtil.java

@@ -317,6 +317,7 @@ public class ImageUtil {
         final int height = originImage.getHeight();
 
         BufferedImage targetImage = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
+        final int maxValue = 0xf73140, minValue = 0x83fd10;
         for (int i = 0; i < width; i++) {
             for (int j = 0; j < height; j++) {
                 int rgb = originImage.getRGB(i, j);
@@ -325,14 +326,18 @@ public class ImageUtil {
                 int binValue;
 
                 // 0是黑  1是白 ，或者说数值小就靠近黑色，数值大就靠近白色
-                if(oneGate > 0xec82e0) { // 大于一定数值，直接用白点
+                if (oneGate > maxValue) { // 大于一定数值，直接用白点
                     binValue = 0xffffff;
-                } else if(oneGate < 0x6ea050) { // 小于一定数值直接用黑点
+                } else if (oneGate < minValue) { // 小于一定数值直接用黑点
                     binValue = 0;
-                } else if(oneGate > randomNum) { // 模拟灰阶使用随机数画白点
-                    binValue = 0xffffff;
                 } else {
-                    binValue = 0;
+                    // 模拟灰阶使用随机数画白点
+                    final int random = new Random().nextInt(100);
+                    if (oneGate > ((maxValue - minValue) / 2) + minValue) {
+                        binValue = random < 60 ? 0xffffff : 0;
+                    } else {
+                        binValue = random < 80 ? 0 : 0xffffff;
+                    }
                 }
                 targetImage.setRGB(i, j, binValue);
             }