本文实例讲述了asp.net(c#)编程实现将彩色图片变灰阶图片的方法。分享给大家供大家参考，具体如下：
代码如下：
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using System;using System.Collections;using System.Configuration;using System.Data;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using System.Drawing;using System.Drawing.Imaging;namespace WebApplication2{ public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Bitmap b = new Bitmap(Server.MapPath("01.jpg")); for (int x = 0; x < b.Width; x++) { for (int y = 0; y < b.Height; y++) { Color pixel = b.GetPixel(x, y); int val = (pixel.R + pixel.G + pixel.B) / 3; b.SetPixel(x, y, Color.FromArgb(val, val, val)); } } b.Save(Server.MapPath("1.jpg")); } }} |
希望本文所述对大家C#程序设计有所帮助。
