Init

MainForm/NewPictureBox.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Forms;
+using System.Threading.Tasks;
+
+namespace ImageCompressor
+{
+    internal class NewPictureBox:PictureBox
+    {
+        /// <summary>
+        /// 以不抗锯齿方式绘制原图像素
+        /// </summary>
+        /// <param name="pe"></param>
+        protected override void OnPaint(PaintEventArgs pe)
+        {
+            pe.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.None;
+            pe.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
+            pe.Graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
+            base.OnPaint(pe);
+        }
+    }
+}