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基于Python實(shí)現(xiàn)屏幕取色工具

更新時(shí)間：2024年12月30日 09:08:00 作者：hvinsion

屏幕取色小工具?是一種實(shí)用的軟件工具,主要用于從屏幕上精確獲取顏色值,非常適合設(shè)計(jì)、編程等需要精確配色的領(lǐng)域,下面我們看看如何利用Python編寫一個(gè)屏幕取色工具吧

1.簡介

屏幕取色小工具‌是一種實(shí)用的軟件工具，主要用于從屏幕上精確獲取顏色值，非常適合設(shè)計(jì)、編程等需要精確配色的領(lǐng)域。這類工具通常能夠從屏幕上任何區(qū)域精確提取顏色值，支持在整數(shù)值、RGB值、BGR值之間轉(zhuǎn)換‌。資源已打包成exe文件，大家需要可自行下載，喜歡請(qǐng)點(diǎn)個(gè)關(guān)注，主頁還有更多干貨資源！

2.運(yùn)行效果

3.相關(guān)源碼

from ctypes import windll
import cv2
from numpy import array as arr
from win32api import GetCursorPos, SetCursorPos
import wx
from PIL import ImageGrab
 
 
class colorData:
    def __init__(self, pos=None, color=None, rgb=None):
        self.pos = pos
        self.color = color
        self.rgb = rgb
 
 
class ColorFrame(wx.Dialog):
    def __init__(self):
        windll.user32.SetProcessDPIAware()
        super().__init__(None, title='Desktop Color', size=(200, 300))
        self.panel = wx.Panel(self)
        self.zb = wx.StaticText(self.panel, label='坐標(biāo)：(0, 0, 0)', style=wx.ALIGN_CENTER)
        self.ys = wx.StaticText(self.panel, label='顏色：(0, 0, 0)', style=wx.ALIGN_CENTER)
        self.RGB = wx.StaticText(self.panel, label='RGB：(0, 0, 0)', style=wx.ALIGN_CENTER)
        self.bitmap = wx.StaticBitmap(self.panel, size=(200, 200))
        self.data = colorData()
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.zb, proportion=1, flag=wx.EXPAND)
        sizer.Add(self.ys, proportion=1, flag=wx.EXPAND)
        sizer.Add(self.RGB, proportion=1, flag=wx.EXPAND)
        sizer.Add(self.bitmap, proportion=1, flag=wx.EXPAND | wx.ALL)
        self.panel.SetSizer(sizer)
        self.Bind(wx.EVT_CLOSE, self.on_close)
        self.Bind(wx.EVT_CHAR_HOOK, self.on_key_press)
        # 創(chuàng)建一個(gè)定時(shí)器來定期獲取桌面顏色并更新標(biāo)簽
        self.timer = wx.Timer(self)
        self.Bind(wx.EVT_TIMER, self.on_timer, self.timer)
        self.timer.Start(1)  # 每隔1秒觸發(fā)一次定時(shí)器
 
    def on_timer(self, event):
        point = GetCursorPos()
        screenshot = ImageGrab.grab()
        color = screenshot.getpixel(point)
        img = arr(ImageGrab.grab((point[0] - 10, point[1] - 10, point[0] + 10, point[1] + 10)))
        img = cv2.resize(img, None, None, fx=10, fy=10, interpolation=cv2.INTER_AREA)
        cv2.rectangle(img, (100, 100), (110, 110), (255, 0, 0), 1)
        self.update_label(point, color, img)
 
    def update_label(self, point, color, img):
        self.zb.SetLabel(f'坐標(biāo)：({point[0]}, {point[1]})')
        self.ys.SetLabel(f'顏色：({color[0]}, {color[1]}, {color[2]})')
        self.RGB.SetLabel(f'RGB：({color[0]:02X}{color[1]:02X}{color[2]:02X})')
        height, width, _ = img.shape
        self.maps = wx.Bitmap.FromBuffer(width, height, img)  # 將Opencv圖像轉(zhuǎn)換為wxPython圖像對(duì)象
        self.bitmap.SetBitmap(self.maps)
 
    def on_close(self, event):
        self.timer.Stop()
        self.Destroy()
 
    def on_key_press(self, event):
        keycode = event.GetKeyCode()
        point = GetCursorPos()
        if keycode == wx.WXK_RETURN or keycode == wx.WXK_NUMPAD_ENTER:
            screenshot = ImageGrab.grab()
            color = screenshot.getpixel(point)
            self.data.pos = point
            self.data.color = color
            self.data.rgb = f'{color[0]:02X}{color[1]:02X}{color[2]:02X}'
            self.on_close(event)
            # self.EndModal(wx.ID_OK)
        elif keycode == wx.WXK_LEFT:
            SetCursorPos((point[0] - 1, point[1]))
        elif keycode == wx.WXK_RIGHT:
            SetCursorPos((point[0] + 1, point[1]))
        elif keycode == wx.WXK_UP:
            SetCursorPos((point[0], point[1] - 1))
        elif keycode == wx.WXK_DOWN:
            SetCursorPos((point[0], point[1] + 1))
 
    def get_data(self):
        return self.data
 
 
app = wx.App()
frame = ColorFrame()
frame.Show()
app.MainLoop()
print(frame.data.pos, frame.data.color, frame.data.rgb)

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