init

ReadMe.md

@@ -0,0 +1,44 @@
+## 功能列表 
+
+- 生成灰度图
+- 生成黑白图
+- 图片反色
+
+## 快速开始
+
+1. 安装依赖
+
+	```bash
+	pip install -r requirements.txt
+	```
+
+2. 运行程序
+
+   ```bash
+   # 黑白
+   python .\img.py .\color.png -t
+   
+   # 灰度
+   python .\img.py .\color.png -g
+   
+   # 反色
+   python .\img.py .\color.png -i
+   ```
+   
+
+## 用法说明
+
+```bash
+usage: img.py [-h] [-g | -i | -t] [-o OUTPUT] img
+
+positional arguments:
+  img                   input img file name
+
+options:
+  -h, --help            show this help message and exit
+  -g, --gray            convert color img to gray
+  -i, --invert          invert color img
+  -t, --threshold       to produce a black and white image
+  -o OUTPUT, --output OUTPUT
+                        output img file name
+```

img.py

@@ -0,0 +1,32 @@
+from pathlib import Path  
+import argparse
+from PIL import Image, ImageOps, ImageEnhance
+
+if __name__ == "__main__":
+    # get opt
+    parser = argparse.ArgumentParser()
+    parser.add_argument("img", help="input img file name", type=str)
+    group = parser.add_mutually_exclusive_group()
+    group.add_argument("-g", "--gray", help="convert color img to gray", action="store_true")
+    group.add_argument("-i", "--invert", help="invert color img", action="store_true")
+    group.add_argument("-t", "--threshold", help="to produce a black and white image", action="store_true")
+    parser.add_argument("-o", "--output", help="output img file name", type=str, default="output.png")
+    args = parser.parse_args()
+
+    if args.gray:
+        img = Image.open(args.img)  
+        img_gray = img.convert('L')   
+        img_gray.save(args.output)
+    elif args.invert:
+        img = Image.open(args.img)  
+        img_invert = ImageOps.invert(img)   
+        img_invert.save(args.output)
+    elif args.threshold:
+        img = Image.open(args.img)   
+        img_gray = img.convert('L')  
+        enhancer = ImageEnhance.Contrast(img_gray)  
+        img_gray = enhancer.enhance(2)   
+        img_bw = img_gray.point(lambda x: 0 if x < 128 else 255, '1')  
+        img_bw.save(args.output)
+    else:
+        print("Please run scripts with -g or -i or -t")

requirements.txt

@@ -0,0 +1,2 @@
+Pillow==10.1.0
+Pillow==10.2.0