🔴 自定义电子印章生成工具

项目概述

基于 Pillow + OpenCV + NumPy + Tkinter 构建的电子印章生成桌面工具。支持三种印章类型（圆形公章/方形闲章/椭圆财务章），所有参数可通过 GUI 实时调节，透明背景输出，斑驳磨损模拟真实盖印效果。

功能特性

• 圆形公章：环形文字 + 五角星 + 可选税号
• 方形闲章：朱文/白文两种篆刻风格
• 椭圆财务章：公司名 + 横线 + 自定义文字
• 透明背景初始化，输出带 Alpha 通道 PNG
• 磨损效果可调（0=干净电子章）
• 双模式保存：白底 / 透明底

依赖安装

pip install Pillow opencv-python numpy

运行

python 0721/stamp_generator.py

---

完整源码

stamp_generator.py

"""自定义电子印章生成工具 - Pillow + OpenCV + NumPy + Tkinter GUI功能：圆形企业公章 / 方形篆刻闲章 / 椭圆形财务章特性：文字环形排列、五角星、斑驳磨损、透明背景输出依赖：pip install Pillow opencv-python numpy"""import tkinter as tkfrom tkinter import ttk, filedialog, messagebox, colorchooserfrom PIL import Image, ImageDraw, ImageFont, ImageTkimport numpy as npimport cv2import osimport mathfrom datetime import datetimeDEFAULT_CONFIG = {"company_name": "青岛技术开发有限公司","tax_code": "91110108MA12345X","leisure_text": "宁静致远","finance_text": "财务专用章",}defget_system_font(seal=False):    candidates = (        ["C:/Windows/Fonts/STZHONGS.TTF","C:/Windows/Fonts/simkai.ttf","C:/Windows/Fonts/simsun.ttc","/System/Library/Fonts/STKaiti.ttf","/usr/share/fonts/truetype/wqy/wqy-zenhei.ttc"] if seal else        ["C:/Windows/Fonts/simsun.ttc","C:/Windows/Fonts/msyh.ttc","C:/Windows/Fonts/simhei.ttf","/System/Library/Fonts/PingFang.ttc","/usr/share/fonts/truetype/wqy/wqy-zenhei.ttc"]    )for p in candidates:if os.path.exists(p): return preturnNonedefload_font(size, seal=False):    path = get_system_font(seal)try: return ImageFont.truetype(path, size) if path else ImageFont.load_default()except: return ImageFont.load_default()defdraw_star(draw, cx, cy, radius, color):    pts = []for i in range(5):        a = math.radians(-90 + i*72)        pts.append((cx+radius*math.cos(a), cy+radius*math.sin(a)))        a = math.radians(-90 + i*72 + 36)        pts.append((cx+radius*0.4*math.cos(a), cy+radius*0.4*math.sin(a)))    draw.polygon(pts, fill=color)defdraw_circular_text(img, text, cx, cy, radius, font_size, color, arc_span=150):    font = load_font(font_size)    n = len(text)if n == 0: return    half = arc_span / 2    start = -90 - half    step = arc_span / nfor i, char in enumerate(text):        deg = start + i*step + step/2        rad = math.radians(deg)        x = cx + radius*math.cos(rad)        y = cy + radius*math.sin(rad)        cs = font_size + 12        ci = Image.new("RGBA",(cs,cs),(0,0,0,0))        cd = ImageDraw.Draw(ci)        bbox = cd.textbbox((0,0), char, font=font)        tw,th = bbox[2]-bbox[0], bbox[3]-bbox[1]        cd.text(((cs-tw)/2,(cs-th)/2), char, fill=color, font=font)        ci = ci.rotate(-(deg+90), expand=True, fillcolor=(0,0,0,0))        img.paste(ci, (int(x-ci.width/2), int(y-ci.height/2)), ci)defdraw_center_text(draw, text, cx, cy, font_size, color):    font = load_font(font_size)    bbox = draw.textbbox((0,0), text, font=font)    tw,th = bbox[2]-bbox[0], bbox[3]-bbox[1]    draw.text((cx-tw/2, cy-th/2), text, fill=color, font=font)defapply_wear(img, strength=0.3):if strength <= 0: return img    arr = np.array(img).astype(np.float32)    noise = np.random.random(arr.shape[:2])    mask = noise < strength*0.25for c in range(3):        ch=arr[:,:,c]; ch[mask]*=(0.6+np.random.random(mask.sum())*0.4); arr[:,:,c]=chif arr.shape[2]==4: arr[:,:,3][noise<strength*0.1]*=0.5    result = np.clip(arr,0,255).astype(np.uint8)if strength>0.2:        k=np.ones((2,2),np.uint8)for c in range(3): result[:,:,c]=cv2.erode(result[:,:,c],k,iterations=1)return Image.fromarray(result,"RGBA")defmake_checkerboard(w,h,block=12):    img=Image.new("RGBA",(w,h))    px=img.load()for y in range(h):for x in range(w):            px[x,y]=(215,215,215,255) if (x//block+y//block)%2==0else (245,245,245,255)return imgdefgenerate_round_stamp(company_name, tax_code="", size=400, border_width=6,                         font_size=26, star_size=55, color_rgb=(200,20,20),                         noise=0.2, arc_span=150, tax_font_size=13, spacing=0):    img = Image.new("RGBA",(size,size),(0,0,0,0))    draw = ImageDraw.Draw(img)    cx,cy = size//2, size//2    color = (*color_rgb, 255)    m=border_width    draw.ellipse([m,m,size-m,size-m], outline=color, width=border_width)    draw_star(draw, cx, cy+5+spacing, star_size//2, color)    radius = size//2 - border_width - font_size    draw_circular_text(img, company_name, cx, cy+spacing, radius, font_size, color, arc_span)if tax_code:        draw=ImageDraw.Draw(img)        draw_center_text(draw, tax_code, cx, cy+star_size//2+35+spacing, tax_font_size, color)    img = apply_wear(img, noise)    white = Image.new("RGBA",(size,size),(255,255,255,255))    white.paste(img,(0,0),img)return white, imgdefgenerate_square_stamp(text, size=200, border_width=6, color_rgb=(200,20,20),                          style="朱文", noise=0.2):    img = Image.new("RGBA",(size,size),(0,0,0,0))    draw = ImageDraw.Draw(img)    color = (*color_rgb,255)    tc = color if style=="朱文"else (255,255,255,255)if style=="朱文":        draw.rectangle([border_width,border_width,size-border_width,size-border_width],                       outline=color, width=border_width)else:        draw.rectangle([border_width,border_width,size-border_width,size-border_width],                       fill=color, outline=color, width=border_width)if len(text)<=4:        cols=2if len(text)==4else len(text)        rows=math.ceil(len(text)/cols)        cw=(size-border_width*4)//cols; ch=(size-border_width*4)//rowsfor i,char in enumerate(text):            r,c=i//cols,i%cols            x=border_width*2+c*cw+cw//2; y=border_width*2+r*ch+ch//2            draw_center_text(draw,char,x,y,cw-10,tc)else:        draw_center_text(draw,text,size//2,size//2,30,tc)    img=apply_wear(img,noise)    white=Image.new("RGBA",(size,size),(255,255,255,255))    white.paste(img,(0,0),img)return white,imgdefgenerate_ellipse_stamp(company_name, text="财务专用章", size=400,                           border_width=5, color_rgb=(200,20,20), noise=0.2, spacing=0):    h=int(size*0.7)    img=Image.new("RGBA",(size,size),(0,0,0,0))    draw=ImageDraw.Draw(img)    color=(*color_rgb,255)    cx,cy=size//2,size//2; yo=(size-h)//2    draw.ellipse([border_width,yo+border_width,size-border_width,yo+h-border_width],                 outline=color, width=border_width)    draw_center_text(draw,company_name,cx,cy-28+spacing,18,color)    lw=size//3    draw.line([(cx-lw,cy+spacing),(cx+lw,cy+spacing)], fill=color, width=2)    draw_center_text(draw,text,cx,cy+25+spacing,22,color)    img=apply_wear(img,noise)    white=Image.new("RGBA",(size,size),(255,255,255,255))    white.paste(img,(0,0),img)return white,imgclassStampGUI:def__init__(self):        self.root = tk.Tk()        self.root.title("🔴 电子印章生成器")        self.root.geometry("860x600")        self.root.resizable(True, True)        self.root.configure(bg="#fafafa")        self.result_white = None        self.result_transparent = None        self.photo_preview = None        self.stamp_color = [200, 20, 20]        self._debounce_id = None        self.build_ui()        self.root.after(300, self.generate)defbuild_ui(self):        header = tk.Frame(self.root, bg="#546e7a", height=36)        header.pack(fill="x"); header.pack_propagate(False)        tk.Label(header, text="🔴 电子印章生成器", font=("Microsoft YaHei",11,"bold"),                 bg="#546e7a", fg="#fff").pack(side="left", padx=12, pady=4)        body = tk.Frame(self.root, bg="#fafafa")        body.pack(fill="both", expand=True, padx=6, pady=4)        left = tk.Frame(body, bg="#fff", width=380, highlightthickness=1, highlightbackground="#ddd")        left.pack(side="left", fill="y", padx=(0,4)); left.pack_propagate(False)        cv = tk.Canvas(left, bg="#fff", highlightthickness=0)        sb = ttk.Scrollbar(left, orient="vertical", command=cv.yview)        self.pf = tk.Frame(cv, bg="#fff")        self.pf.bind("<Configure>", lambda e: cv.configure(scrollregion=cv.bbox("all")))        cv.create_window((0,0), window=self.pf, anchor="nw", width=360)        cv.configure(yscrollcommand=sb.set)        cv.pack(side="left", fill="both", expand=True); sb.pack(side="right", fill="y")        cv.bind_all("<MouseWheel>", lambda e: cv.yview_scroll(int(-1*(e.delta/120)),"units"))        self.build_params()        right = tk.Frame(body, bg="#fff", highlightthickness=1, highlightbackground="#ddd")        right.pack(side="left", fill="both", expand=True)        self.canvas = tk.Canvas(right, bg="#f0f0f0", highlightthickness=0)        self.canvas.pack(fill="both", expand=True, padx=4, pady=4)        bf = tk.Frame(right, bg="#fff"); bf.pack(fill="x", padx=6, pady=4)        tk.Button(bf, text="💾 白底", font=("Microsoft YaHei",9), bg="#ff9800", fg="#fff",                  relief="flat", padx=10, command=lambda:self.save("white")).pack(side="left",padx=(0,4))        tk.Button(bf, text="💾 透明底", font=("Microsoft YaHei",9), bg="#607d8b", fg="#fff",                  relief="flat", padx=10, command=lambda:self.save("transparent")).pack(side="left")defbuild_params(self):        p = self.pf        self._sec(p, "印章类型")        self.stamp_type = tk.StringVar(value="圆形公章")        tf = tk.Frame(p, bg="#fff"); tf.pack(fill="x", padx=6, pady=2)for t in ["圆形公章","方形闲章","椭圆财务章"]:            tk.Radiobutton(tf, text=t, variable=self.stamp_type, value=t,                           bg="#fff", font=("Microsoft YaHei",8), command=self._on_change).pack(side="left",padx=3)        self._sec(p, "文字")        self.inp_name = self._inp(p, "公司名", DEFAULT_CONFIG["company_name"])        self.inp_leisure = self._inp(p, "闲章", DEFAULT_CONFIG["leisure_text"])        r = tk.Frame(p, bg="#fff"); r.pack(fill="x", padx=6, pady=1)        self.inp_finance = self._inp_inline(r, "财务", DEFAULT_CONFIG["finance_text"], 10)        self.inp_tax = self._inp_inline(r, "税号", DEFAULT_CONFIG["tax_code"], 14)        self._sec(p, "印泥颜色")        cf = tk.Frame(p, bg="#fff"); cf.pack(fill="x", padx=6, pady=2)        self.color_label = tk.Label(cf, text="  ", bg="#c81414", width=3, relief="solid", bd=1)        self.color_label.pack(side="left", padx=(0,4))        tk.Button(cf, text="🎨选色", font=("Microsoft YaHei",7), bg="#eee", fg="#333",                  relief="flat", command=self.pick_color).pack(side="left", padx=2)for name, rgb in [("红",(200,20,20)),("蓝",(20,60,180)),("黑",(30,30,30)),                          ("紫",(120,20,150)),("绿",(20,120,50)),("橙",(200,100,20))]:            tk.Button(cf, text=name, font=("Microsoft YaHei",7), width=2, relief="flat",                      bg=f"#{rgb[0]:02x}{rgb[1]:02x}{rgb[2]:02x}", fg="#fff",                      command=lambda c=rgb:self.set_color(c)).pack(side="left",padx=1)        self._sec(p, "参数")        r1=tk.Frame(p,bg="#fff");r1.pack(fill="x",padx=6,pady=1)        self.size_var = self._spin(r1,"尺寸",200,600,400)        self.font_size_var = self._spin(r1,"字号",14,42,26)        r2=tk.Frame(p,bg="#fff");r2.pack(fill="x",padx=6,pady=1)        self.border_var = self._spin(r2,"边框",2,14,6)        self.star_var = self._spin(r2,"五角星",20,120,55)        r3=tk.Frame(p,bg="#fff");r3.pack(fill="x",padx=6,pady=1)        self.arc_var = self._spin(r3,"弧度",60,240,150)        self.spacing_var = self._spin(r3,"上下间距",-30,30,0)        r4=tk.Frame(p,bg="#fff");r4.pack(fill="x",padx=6,pady=1)        self.tax_font_var = self._spin(r4,"税号字号",8,22,13)        self.noise_var = self._spin_f(r4,"磨损",0.0,0.8,0.15)        self._sec(p, "闲章风格")        self.style_var = tk.StringVar(value="朱文")        sf=tk.Frame(p,bg="#fff");sf.pack(fill="x",padx=6,pady=2)        tk.Radiobutton(sf,text="朱文",variable=self.style_var,value="朱文",bg="#fff",                       font=("Microsoft YaHei",8),command=self._on_change).pack(side="left")        tk.Radiobutton(sf,text="白文",variable=self.style_var,value="白文",bg="#fff",                       font=("Microsoft YaHei",8),command=self._on_change).pack(side="left")def_sec(self, p, text):        tk.Label(p, text=text, bg="#fff", fg="#37474f", font=("Microsoft YaHei",9,"bold")).pack(fill="x",padx=6,pady=(6,1))def_inp(self, p, label, default):        r=tk.Frame(p,bg="#fff");r.pack(fill="x",padx=6,pady=1)        tk.Label(r,text=label+":",bg="#fff",fg="#555",font=("Microsoft YaHei",8),width=5,anchor="e").pack(side="left")        e=tk.Entry(r,font=("Microsoft YaHei",8));e.pack(side="left",fill="x",expand=True,padx=2)        e.insert(0,default); e.bind("<KeyRelease>", self._on_change); return edef_inp_inline(self, parent, label, default, width):        tk.Label(parent,text=label+":",bg="#fff",fg="#555",font=("Microsoft YaHei",8)).pack(side="left")        e=tk.Entry(parent,font=("Microsoft YaHei",8),width=width);e.pack(side="left",padx=(1,4))        e.insert(0,default); e.bind("<KeyRelease>", self._on_change); return edef_spin(self, parent, label, from_, to, default):        f=tk.Frame(parent,bg="#fff");f.pack(side="left",fill="x",expand=True,padx=2)        tk.Label(f,text=label,bg="#fff",fg="#555",font=("Microsoft YaHei",7)).pack(anchor="w")        var=tk.IntVar(value=default)        sb=tk.Spinbox(f,from_=from_,to=to,textvariable=var,width=6,font=("Consolas",9),                      increment=1,justify="center",relief="solid",bd=1,command=self._on_change)        sb.pack(fill="x"); sb.bind("<KeyRelease>", self._on_change); return vardef_spin_f(self, parent, label, from_, to, default):        f=tk.Frame(parent,bg="#fff");f.pack(side="left",fill="x",expand=True,padx=2)        tk.Label(f,text=label,bg="#fff",fg="#555",font=("Microsoft YaHei",7)).pack(anchor="w")        var=tk.DoubleVar(value=default)        sb=tk.Spinbox(f,from_=from_,to=to,textvariable=var,width=6,font=("Consolas",9),                      increment=0.05,format="%.2f",justify="center",relief="solid",bd=1,command=self._on_change)        sb.pack(fill="x"); sb.bind("<KeyRelease>", self._on_change); return vardefpick_color(self):        c = colorchooser.askcolor(initialcolor=f"#{self.stamp_color[0]:02x}{self.stamp_color[1]:02x}{self.stamp_color[2]:02x}")if c[0]: self.stamp_color=[int(v) for v in c[0]]; self.color_label.config(bg=c[1]); self._on_change()defset_color(self, rgb):        self.stamp_color=list(rgb); self.color_label.config(bg=f"#{rgb[0]:02x}{rgb[1]:02x}{rgb[2]:02x}"); self._on_change()def_on_change(self, *args):if self._debounce_id: self.root.after_cancel(self._debounce_id)        self._debounce_id = self.root.after(300, self.generate)defgenerate(self):        st=self.stamp_type.get()try:            size=self.size_var.get();bw=self.border_var.get();fs=self.font_size_var.get()            star=self.star_var.get();arc=self.arc_var.get();tfs=self.tax_font_var.get()            noise=self.noise_var.get();spacing=self.spacing_var.get()except: return        rgb=tuple(self.stamp_color)try:if st=="圆形公章":                name=self.inp_name.get().strip() or DEFAULT_CONFIG["company_name"]                tax=self.inp_tax.get().strip()                self.result_white,self.result_transparent=generate_round_stamp(                    name,tax_code=tax,size=size,border_width=bw,font_size=fs,star_size=star,                    color_rgb=rgb,noise=noise,arc_span=arc,tax_font_size=tfs,spacing=spacing)elif st=="方形闲章":                text=self.inp_leisure.get().strip() or DEFAULT_CONFIG["leisure_text"]                self.result_white,self.result_transparent=generate_square_stamp(                    text,size=size,border_width=bw,color_rgb=rgb,style=self.style_var.get(),noise=noise)else:                name=self.inp_name.get().strip() or DEFAULT_CONFIG["company_name"]                ft=self.inp_finance.get().strip() or"财务专用章"                self.result_white,self.result_transparent=generate_ellipse_stamp(                    name,text=ft,size=size,border_width=bw,color_rgb=rgb,noise=noise,spacing=spacing)            self.show_preview()except: passdefshow_preview(self):ifnot self.result_transparent: return        self.canvas.update_idletasks()        cw=max(self.canvas.winfo_width(),300);ch=max(self.canvas.winfo_height(),300)        img=self.result_transparent        ratio=min(cw/img.width,ch/img.height,1.0)*0.88        nw,nh=int(img.width*ratio),int(img.height*ratio)        checker=make_checkerboard(nw,nh)        resized=img.resize((nw,nh),Image.LANCZOS)        checker.paste(resized,(0,0),resized)        self.photo_preview=ImageTk.PhotoImage(checker)        self.canvas.delete("all")        self.canvas.create_image(cw//2,ch//2,anchor="center",image=self.photo_preview)defsave(self, mode):        img=self.result_white if mode=="white"else self.result_transparentifnot img: messagebox.showinfo("提示","请先生成"); return        ts=datetime.now().strftime("%Y%m%d_%H%M%S")        nm=f"{'bg'if mode=='white'else'transparent'}_stamp_{ts}.png"        path=filedialog.asksaveasfilename(title="保存",defaultextension=".png",                                          initialfile=nm,filetypes=[("PNG","*.png")])if path: img.save(path,format="PNG"); messagebox.showinfo("成功",f"已保存:\n{path}")defrun(self):        self.root.mainloop()if __name__=="__main__":    StampGUI().run()

许可证

MIT License