【Python】批量给图片增加水印工具

背景

最近有一些图片需要增加水印，找了一圈也没看见比较好的工具，又不想用破解的PS，干脆自己做了一个GUI工具，有需要的同学自取

功能

• 支持水印预览
• 自定义水印文字内容
• 支持行楷和微软雅黑两种字体
• 支持自定义字号
• 支持自定义水印颜色
• 支持自定义水印间距
• 支持自定义水印透明度
• 支持自定义水印旋转角度
• 支持批量给图片增加水印
• 仅支持Windows平台（用到了windows上的字体）

预览

使用方式

方法一：运行Python脚本。

电脑上需要安装python3运行环境

# 安装依赖包
pip install pillow pysimplegui
# 将下面的源码保存为: image_watermark_tool.py
python image_watermark_tool.py

方法二：直接下载exe文件，双击运行即可。

链接: https://pan.baidu.com/s/1veoNlDJOecq7bw0rQB-FYg
提取码: b9pe

exe程序由下面的源码打包而成

pyinstaller -F -w image_watermark_tool.py

源码

# author zhenglisai
from PIL import Image, ImageDraw, ImageFont
import PySimpleGUI as sg
import os
from io import BytesIO
import base64
import traceback


def add_watermark(image, msg, font, font_size, color, distance, transparency, angle):
    if font == "xingkai":
        font_name = "C:\\WINDOWS\\Fonts\\STXINGKA.TTF"
    else:
        font_name = "C:\\WINDOWS\\Fonts\\msyh.ttc"
    font = ImageFont.truetype(font_name, int(font_size))
    if color == "" or color == "None":
        r = 0
        g = 0
        b = 0
    else:
        color = color.replace("#", "0x")
        color = int(color, base=16) if isinstance(color, str) else color
        r = (color >> 16) & 0xff
        g = (color >> 8) & 0xff
        b = color & 0xff
    background = Image.new('RGBA', (image.size[0] * 3, image.size[1] * 3), (0, 0, 0, 0))
    background.paste(image, image.size)
    font_len = len(msg)
    rgba_image = background.convert('RGBA')
    text_overlay = Image.new('RGBA', rgba_image.size, (255, 255, 255, 0))
    image_draw = ImageDraw.Draw(text_overlay)
    for i in range(0, rgba_image.size[0], font_len * 40 + int(distance)):
        for j in range(0, rgba_image.size[1], int(distance)):
            image_draw.text((i, j), msg, font=font, fill=(r, g, b, int(transparency)))
    text_overlay = text_overlay.rotate(int(angle))
    image_result = Image.alpha_composite(rgba_image, text_overlay)
    image_result = image_result.crop((image.size[0], image.size[1], image.size[0] * 2, image.size[1] * 2))
    return image_result


frame = [
        [sg.Text("水印"), sg.InputText("郑立赛", key="text", enable_events=True)],
        [sg.Text("字体"), sg.Radio("行楷", "font", default=True, key="xingkai", enable_events=True), sg.Radio("微软雅黑", "font", key="yahei", enable_events=True)],
        [sg.Text("字号"), sg.Slider(range=(1, 100), default_value=36, key="font_size", orientation='horizontal', enable_events=True)],
        [sg.Button("选择水印颜色", button_type=sg.BUTTON_TYPE_COLOR_CHOOSER, target="color"),sg.InputText("#000000", enable_events=True, key="color", readonly=True, size=(10, 10))],
        [sg.Text("间距"), sg.Slider(range=(1, 500), default_value=200, key="distance", orientation='horizontal', enable_events=True)],
        [sg.Text("透明度"), sg.Slider(range=(0, 255), default_value=50, key="transparency", orientation='horizontal', enable_events=True)],
        [sg.Text("角度"), sg.Slider(range=(-90, 90), default_value=45, key="angle", orientation='horizontal', enable_events=True)],
        [sg.Text("使用说明", text_color="red")],
        [sg.Text("第一步：调整参数，预览水印")],
        [sg.Text("第二部：点击下方选择图片")],
        [sg.Button("打开图片", key="open_image")],
        [sg.Text("处理进度"), sg.ProgressBar(100, size=(30, 10), orientation="h", key="progress")]
    ]
frame_image = [
    [sg.Image(key="image"), sg.Sizer(640, 480)]
]

layout = [
    [sg.Frame(title="参数", layout=frame), sg.Frame(title="效果预览", layout=frame_image, element_justification="center")]
]
default_windows_size = (800, 480)
window = sg.Window("批量添加水印工具",
                   layout,
                   default_element_size=(40, 1),
                   grab_anywhere=True,
                   size=default_windows_size,
                   resizable=True,
                   finalize=True,
                   enable_close_attempted_event=True
                   )

while True:
    try:
        event, value = window.read()
        if event == sg.WIN_CLOSED:
            break
        if event == "open_image":
            image_path_list = sg.popup_get_file("选择图片",
                                           no_window=True,
                                           multiple_files=True
                                           )
            source_image_path = os.path.sep.join(image_path_list[0].split("/")[:-1])
            result_path = os.path.join(source_image_path, "watermark")
            if not os.path.exists(result_path):
                os.mkdir(result_path)
            image_count = len(image_path_list)
            text = value["text"]
            font_size = value["font_size"]
            distance = value["distance"]
            transparency = value["transparency"]
            angle = value["angle"]
            color = value["color"]
            progress_bar = window["progress"]
            count = 1
            total = len(image_path_list)
            for image_path in image_path_list:
                image_name = image_path.split("/")[-1].split(".")[0]
                image_source = Image.open(image_path)
                if value["yahei"]:
                    font = "yahei"
                else:
                    font = "xingkai"
                image_result = add_watermark(image_source, text, font, font_size, color, distance, transparency, angle)
                image_result_path = os.path.join(result_path, "%s.png" % image_name)
                image_result.save(image_result_path)
                buffered = BytesIO()
                image_result.save(buffered, format="PNG")
                data = base64.b64encode(buffered.getvalue())
                window["image"].update(data=data)
                progress_bar.UpdateBar(current_count=count, max=total)
                count += 1
            sg.popup_ok('%s张水印图片已保存在: %s' % (image_count, result_path))
        if event in ["angle", "transparency", "distance", "yahei", "xingkai", "font_size", "text", "color"]:
            image_demo = Image.new('RGBA', (640, 480), (0, 0, 0, 0))
            if value["yahei"]:
                font = "yahei"
            else:
                font = "xingkai"
            image_result = add_watermark(image_demo, value["text"], font, value["font_size"], value["color"], value["distance"], value["transparency"], value["angle"])
            buffered = BytesIO()
            image_result.save(buffered, format="PNG")
            data = base64.b64encode(buffered.getvalue())
            window["image"].update(data=data)
    except:
        sg.Print(traceback.format_exc())
window.close()