TG Sticker Resizer

Resize images to fit the sticker format required by Telegram

This script basically does following:

1. Use Pillow to fix the alpha channel of original images in case of sometimes they're wrong and could lead to bugs in waifu2x.
2. Use nihui / waifu2x-ncnn-vulkan to pre-scale images. (Optional)
3. Use OpenCV to adjust the image size.

Requirement

• pip install opencv-python
• pip install pillow

Usage

./resize.py [-f] [-h] [-w] <input_directory>

• input_directory: Directory of images to be processed
• -f: Force overwrite. The script would prompt for overwriting if the file to be written is already exists without this option specified.
• -h: Show help messages.
• -w: Use waifu2x to pre-scale the image. You should also configure the path of the waifu2x-ncnn-vulkan binary at the beginning of this script.

Processed images would be saved into <input_directory>/out