图像之间的图像转换效果

Question

我读过这篇文章https://stackoverflow.com/a/6712572/728750

并在我的应用程序中实现代码，但问题是图像变化如此之快，因为timer1.Interval = 50当我将计时器Interval增加到300然后我发现转换效果看起来不太好。

所以看看我的代码并给我一些建议，我需要在代码中更改两个图像之间的结果转换应该看起来很好和平滑，但我可以为我的主计时器设置任何间隔值。

using System;
using System.IO;
using System.Drawing;
using System.Windows.Forms;

namespace BlendSlideShow
{
    public partial class Form1 : Form
    {
        private float mBlend;
        private int mDir = 1;
        public int count = 0;
        public Bitmap[] pictures;

        public Form1()
        {
            InitializeComponent();

            pictures = new Bitmap[9];
            pictures[0] = new Bitmap(GetImgFolderPath() + "img1.jpg");
            pictures[1] = new Bitmap(GetImgFolderPath() + "img2.jpg");
            pictures[2] = new Bitmap(GetImgFolderPath() + "img3.jpg");
            pictures[3] = new Bitmap(GetImgFolderPath() + "img4.jpg");
            pictures[4] = new Bitmap(GetImgFolderPath() + "img5.jpg");
            pictures[5] = new Bitmap(GetImgFolderPath() + "img6.jpg");
            pictures[6] = new Bitmap(GetImgFolderPath() + "img7.jpg");
            pictures[7] = new Bitmap(GetImgFolderPath() + "img8.jpg");
            pictures[8] = new Bitmap(GetImgFolderPath() + "img9.jpg");

            timer1.Interval = 50; //time of transition
            timer1.Tick += BlendTick;
            try
            {
                blendPanel1.Image1 = pictures[count];
                blendPanel1.Image2 = pictures[++count];
            }
            catch
            {

            }
            timer1.Enabled = true;
        }

        private string GetImgFolderPath()
        {
            string _Path = Path.GetDirectoryName(Application.ExecutablePath) + @"\..\..\images\";
            return _Path;
        }

        private void BlendTick(object sender, EventArgs e)
        {
            mBlend += mDir * 0.02F;
            if (mBlend > 1)
            {
                mBlend = 0.0F;
                if ((count + 1) < pictures.Length)
                {
                    blendPanel1.Image1 = pictures[count];
                    blendPanel1.Image2 = pictures[++count];
                }
                else
                {
                    blendPanel1.Image1 = pictures[count];
                    blendPanel1.Image2 = pictures[0];
                    count = 0;
                }
            }
            blendPanel1.Blend = mBlend;
        }
    }
}

Answer 1

我的完整代码。

using System;
using System.IO;
using System.Drawing;
using System.Windows.Forms;

namespace BlendSlideShow
{
    public partial class Form1 : Form
    {
        private float mBlend;
        private int mDir = 1;
        public int count = 0;
        public Bitmap[] pictures;

        public Form1()
        {
            InitializeComponent();

            pictures = new Bitmap[9];
            pictures[0] = new Bitmap(GetImgFolderPath() + "img1.jpg");
            pictures[1] = new Bitmap(GetImgFolderPath() + "img2.jpg");
            pictures[2] = new Bitmap(GetImgFolderPath() + "img3.jpg");
            pictures[3] = new Bitmap(GetImgFolderPath() + "img4.jpg");
            pictures[4] = new Bitmap(GetImgFolderPath() + "img5.jpg");
            pictures[5] = new Bitmap(GetImgFolderPath() + "img6.jpg");
            pictures[6] = new Bitmap(GetImgFolderPath() + "img7.jpg");
            pictures[7] = new Bitmap(GetImgFolderPath() + "img8.jpg");
            pictures[8] = new Bitmap(GetImgFolderPath() + "img9.jpg");

            timer1.Interval = 50; //time of transition
            timer1.Tick += BlendTick;
            try
            {
                blendPanel1.Image1 = pictures[count];
                blendPanel1.Image2 = pictures[++count];
            }
            catch
            {

            }
            timer1.Enabled = true;
        }

        private string GetImgFolderPath()
        {
            string _Path = Path.GetDirectoryName(Application.ExecutablePath) + @"\..\..\images\";
            return _Path;
        }

        int numberOfTicks;
        int ticksBeforeBlendStarts = 100;

        private void BlendTick(object sender, EventArgs e)
        {
            if (numberOfTicks >= ticksBeforeBlendStarts)
            {
                mBlend += mDir * 0.02F;
                if (mBlend > 1)
                {
                    mBlend = 0.0F;
                    if ((count + 1) < pictures.Length)
                    {
                        blendPanel1.Image1 = pictures[count];
                        blendPanel1.Image2 = pictures[++count];
                    }
                    else
                    {
                        blendPanel1.Image1 = pictures[count];
                        blendPanel1.Image2 = pictures[0];
                        count = 0;
                    }

                    numberOfTicks = 0;
                }
                blendPanel1.Blend = mBlend;
            }
            numberOfTicks++;
        }
    }
}