From 687a5f97e27947501978b5f714198c9f70e67823 Mon Sep 17 00:00:00 2001
From: ful1e5 <24286590+ful1e5@users.noreply.github.com>
Date: Fri, 28 Aug 2020 20:37:59 +0530
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=B3=20Pixel=20Matching=20utils?=
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---
 src/utils/matchImages.ts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/utils/matchImages.ts

diff --git a/src/utils/matchImages.ts b/src/utils/matchImages.ts
new file mode 100644
index 0000000..c7c6d0f
--- /dev/null
+++ b/src/utils/matchImages.ts
@@ -0,0 +1,14 @@
+import fs from "fs";
+import { PNG } from "pngjs";
+import pixelmatch from "pixelmatch";
+
+export const matchImages = (img1Path: string, img2Path: string) => {
+  const img1 = PNG.sync.read(fs.readFileSync(img1Path));
+  const img2 = PNG.sync.read(fs.readFileSync(img2Path));
+  const { width, height } = img1;
+  const diff = new PNG({ width, height });
+
+  return pixelmatch(img1.data, img2.data, diff.data, width, height, {
+    threshold: 0.3,
+  });
+};