From 0b8884cc2a9c4f7e179f30f0290229e09a225ecb Mon Sep 17 00:00:00 2001
From: caoqianming <caoqianming@foxmail.com>
Date: Mon, 13 Feb 2023 15:18:54 +0800
Subject: [PATCH] =?UTF-8?q?=E5=9B=BE=E7=89=87=E5=8E=8B=E7=BC=A9=E5=8A=9F?=
 =?UTF-8?q?=E8=83=BD?=
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---
 apps/utils/img.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 apps/utils/img.py

diff --git a/apps/utils/img.py b/apps/utils/img.py
new file mode 100644
index 00000000..4e104f28
--- /dev/null
+++ b/apps/utils/img.py
@@ -0,0 +1,25 @@
+import os
+from PIL import Image
+ 
+def compress_image(infile, outfile='', kb=80, step=10, quality=80):
+    """不改变图片尺寸压缩到指定大小
+    :param infile: 压缩源文件
+    :param outfile: 压缩文件保存地址
+    :param kb: 压缩目标, KB
+    :param step: 每次调整的压缩比率
+    :param quality: 初始压缩比率
+    :return: 压缩文件地址，压缩文件大小
+    """
+    o_size = os.path.getsize(infile)/1024
+    if o_size <= kb:
+        return infile
+    if outfile == '':
+        outfile = infile
+    while o_size > kb:
+        im = Image.open(infile)
+        im.save(outfile, quality=quality)
+        if quality - step < 0:
+            break
+        quality -= step
+        o_size = os.path.getsize(outfile)/1024
+    return outfile, o_size
\ No newline at end of file