diff --git a/src/core/bp-registry/custom/1.png b/src/core/bp-registry/custom/1.png
new file mode 100755
index 00000000..7d4d4a75
Binary files /dev/null and b/src/core/bp-registry/custom/1.png differ
diff --git a/src/core/bp-registry/registry.json b/src/core/bp-registry/registry.json
index 36d9a316..15e1354b 100644
--- a/src/core/bp-registry/registry.json
+++ b/src/core/bp-registry/registry.json
@@ -1,4 +1,22 @@
 {
+  "custom": [
+    {
+      "fileName": "1.png",
+      "daemons": [
+        ["55", "1C", "1C"],
+        ["1C", "1C"],
+        ["1C", "E9", "1C", "E9"]
+      ],
+      "grid": [
+        "E9", "1C", "55", "1C", "55",
+        "1C", "1C", "55", "E9", "55",
+        "1C", "1C", "55", "E9", "1C",
+        "BD", "1C", "1C", "1C", "55",
+        "1C", "55", "1C", "55", "BD"
+      ],
+      "bufferSize": 7
+    }
+  ],
   "1024x768": [
     {
       "fileName": "1.png",
diff --git a/src/core/ocr/base.ts b/src/core/ocr/base.ts
index cdc01124..6890bc9b 100644
--- a/src/core/ocr/base.ts
+++ b/src/core/ocr/base.ts
@@ -128,12 +128,12 @@ export abstract class BreachProtocolFragment<
     const { width, height, left, top } = this.container.getCroppedBoundingBox();
 
     return {
-      left: left + Math.round(p1.x * width),
-      top: top + Math.round(p1.y * height),
+      left: Math.round(p1.x * width + left),
+      top: Math.round(p1.y * height + top),
       width: Math.round((p2.x - p1.x) * width),
       height: Math.round((p2.y - p1.y) * height),
-      outerWidth: width + 2 * left,
-      outerHeight: height + 2 * top,
+      outerWidth: Math.round(2 * left + width),
+      outerHeight: Math.round(2 * top + height),
       innerWidth: width,
       innerHeight: height,
     } as BreachProtocolFragmentBoundingBox;
diff --git a/src/core/ocr/ocr.test.ts b/src/core/ocr/ocr.test.ts
index a50759ab..3925c8f6 100644
--- a/src/core/ocr/ocr.test.ts
+++ b/src/core/ocr/ocr.test.ts
@@ -23,6 +23,7 @@ interface RegistryEntry {
 }
 
 type Resolution =
+  | 'custom'
   | '1024x768'
   | '1920x1080'
   | '2560x1440'
@@ -184,6 +185,13 @@ describe('ocr', () => {
     await BreachProtocolOCRFragment.terminateScheduler();
   });
 
+  it.each(getRegistryFor('custom'))(
+    'should correctly ocr custom resolution/%s',
+    async (f: string, entry: RegistryEntry) => {
+      await compareOcrToJson(entry, 'custom');
+    }
+  );
+
   it.each(getRegistryFor('1024x768'))(
     'should correctly ocr 1024x768/%s',
     async (f: string, entry: RegistryEntry) => {