convert WEBP image to PNG format and resize if necessary

webp2png.py

from PIL import Image


def webp_to_png(input_path, output_path, size=None):
    # 打开webp文件
    img = Image.open(input_path)

    if size is None:
        pass
    # 重新调整图片的大小
    else:
        img = img.resize(size, Image.ANTIALIAS)

    # 转换为RGBA模式
    img = img.convert("RGBA")

    # 获取图片的数据
    datas = img.getdata()

    new_data = []
    for item in datas:
        # 改变所有白（也近似于白）色像素点为透明
        if item[0] > 200 and item[1] > 200 and item[2] > 200:
            new_data.append((255, 255, 255, 0))
        else:
            new_data.append(item)

    # 更新图片数据
    img.putdata(new_data)

    # 保存为png文件
    img.save(output_path, 'PNG')


if __name__ == '__main__':
    webp_to_png("d:\\tencent-cloud.webp", "d:\\t.png", (180, 148))