[C#]Image에 흰색 지우기

사용이미지

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace App4ImageCut
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            Bitmap bitmap = Properties.Resources.트와이스;
            Bitmap newBitmap = new Bitmap(bitmap.Width, bitmap.Height);
 
            for (int x = 0; x < bitmap.Width; x++)
            {
                for (int y = 0; y < bitmap.Height; y++)
                {
                    Color pixel = bitmap.GetPixel(x, y);
 
                    if(pixel.R == 255 && pixel.G == 255 && pixel.B == 255)
                        newBitmap.SetPixel(x, y, Color.Transparent);
                    else
                        newBitmap.SetPixel(x, y, pixel);
                }
            }
 
            this.pictureBox1.Image = newBitmap;
        }
    }
}
 

실행