「虹色フィルタ」の編集履歴（バックアップ）一覧に戻る

虹色フィルタ - (2010/06/17 (木) 16:02:48) のソース

C＃で作った何でも虹色にしてしまうフィルタ。
FormにPictureBox1とボタンをおいて、
画像の設定をあなたのお手持ちの画像に変えると使用可能。

コード中のpict_RGB_And_Deviation(100,100, 100,50, 50, 50)　は前半3つがフィルタ適用後のイラストの色の平均値、後ろ３つがRGB値の標準偏差を指定できる、偏差の値を大きくすると絵が虹色風になる。



下記コードを別の数式に変えると、丁寧な色鉛筆風フィルタになったり、絵が虹色風になるフィルタになったりと色々いじくると楽しい。

                    tR = 2* (C2.R - aveDev2.aveR) / aveDev2.devR;
                    tR = tR*tR * aveDev1.devR + aveDev1.aveR;
                    
                    tG = 1* (C2.G - aveDev2.aveG) / aveDev2.devG;
                    tG = tG *tG  * aveDev1.devG + aveDev1.aveG;

                    tB = 0.5* (C2.B - aveDev2.aveB) / aveDev2.devB;
                    tB = tB*tB * aveDev1.devB + aveDev1.aveB;



フィルタ使用例、黄金色版。
写真は
http://pocket1236.seesaa.net/
と
http://jp.123rf.com/photo_2996333.html
をしよう。

&ref(自作フィルタ虹色版.png)


*発展
フィルタを適用すると絵が乱雑になりやすいので、隣り合った近傍点との平均を取り、色合いが綺麗になるよう工夫するのもいいかもしれない。


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
public delegate void ExampleCallback(Bitmap outBit,PictureBox p1);

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        int tc = 0;
        //Bitmap lastB;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }

        private void button1_Click(object sender, EventArgs e)
        {
            
            
            Bitmap b2 = new Bitmap(pictureBox1.Image);
            


            //pictureBox1.Image  =b1;
            
            pictFilter PTC1 = new WindowsFormsApplication2.pictFilter();
            pict_RGB_And_Deviation aveDev = new pict_RGB_And_Deviation(100,100, 100,50, 50, 50);
            //上記メソッドは、絵にフィルタを掛けた後のRGBの

 
            pictureBox1.Image=PTC1.standard_deviation_filter(aveDev, b2); 
            //pictureBox1.Image  =PTC1.lineFilter(b1);
            //b1=PTC1.lineFilter(b1);
            
            /*pictFilter PTC = new WindowsFormsApplication2.pictFilter(PTC1.lineFilter (b1), new ExampleCallback(ResultCallback),pictureBox1);
            Thread t1 =new Thread(new ThreadStart(PTC.cercleChange));
            t1.Start();
            t1.Join();
            */
            //pictFilter PTC = new WindowsFormsApplication2.pictFilter();
            //pictureBox1.Image = PTC.lineFilter(b1);
            //pictureBox1.Image = PTC.flatFilter2( PTC.cercleChange      (b1)) ;
            //b1.Dispose();
        }
        public static void ResultCallback(Bitmap outBit,PictureBox p1)
        {
            p1.Image = outBit;
        }


        private void pictureBox1_Click(object sender, EventArgs e)
        {
            tc++;
            if (tc == 1)
            {
                pictureBox1.Image = Image.FromFile("D:/色々/中高生向け戦争小説　ギガンダム討伐/earth1.jpg");
            }
            else if (tc == 2)
            {
                pictureBox1.Image = Image.FromFile("D:/色々/中高生向け戦争小説　ギガンダム討伐/P1020179.JPG");
            }
            else if (tc == 3)
            {
                pictureBox1.Image = Image.FromFile("D:/色々/中高生向け戦争小説　ギガンダム討伐/はばたきフクロウ昼.JPG");
            }
                pictureBox1.Height = 1200;
            pictureBox1.Width  = 1000;
            pictureBox1.Top = 0;
            pictureBox1.Left = 0; 
            
        }

    }
    class pictFilter
    {
        Random rnd = new Random();
        Bitmap pictOut = null;
        int h;//絵の高さ
        int w;//絵の横幅
        Bitmap pictIn;
        ExampleCallback callback;
        PictureBox lastPict;
        public pictFilter()
        {
            h = 0;
            w = 0;
        }

        public Bitmap standard_deviation_filter(pict_RGB_And_Deviation aveDev1, Bitmap b2)
        {
            Color C2;
            Bitmap outBit;
            double tR, tG, tB;
            int tR1, tG1, tB1;
            pict_RGB_And_Deviation aveDev2 = new pict_RGB_And_Deviation(b2);

            outBit = new Bitmap(b2.Width, b2.Height);

            for (int i = 0; i < b2.Width; i++)
            {
                for (int j = 0; j < b2.Height; j++)
                {
                    C2 = b2.GetPixel(i, j);
                    //tR = ((C2.R - aveDev2.aveR) / aveDev2.devR) * aveDev1.devR + aveDev1.aveR;
                    //tG = (C2.G - aveDev2.aveG) / aveDev2.devG * aveDev1.devG + aveDev1.aveG;
                    //tB = (C2.B - aveDev2.aveB) / aveDev2.devB * aveDev1.devB + aveDev1.aveB;
                    //tR = Math.Log(5    *    ((C2.R - aveDev2.aveR) / aveDev2.devR)) * aveDev1.devR + aveDev1.aveR;
                    //tG = Math.Log(5    *    ((C2.G - aveDev2.aveG) / aveDev2.devG)) * aveDev1.devG + aveDev1.aveG;
                    //tB = Math.Log(5    *    ((C2.B - aveDev2.aveB) / aveDev2.devB)) * aveDev1.devB + aveDev1.aveB;

                    tR = 2* (C2.R - aveDev2.aveR) / aveDev2.devR;
                    tR = tR*tR * aveDev1.devR + aveDev1.aveR;
                    
                    tG = 1* (C2.G - aveDev2.aveG) / aveDev2.devG;
                    tG = tG *tG  * aveDev1.devG + aveDev1.aveG;

                    tB = 0.5* (C2.B - aveDev2.aveB) / aveDev2.devB;
                    tB = tB*tB * aveDev1.devB + aveDev1.aveB;
                    
                    tR1 = cutNum(0, 255, (int)Math.Floor(tR));
                    tG1 = cutNum(0, 255, (int)Math.Floor(tG));
                    tB1 = cutNum(0, 255, (int)Math.Floor(tB));
                    outBit.SetPixel(i, j, Color.FromArgb(tR1, tG1, tB1));

                }
            }
            //生物の遺伝子構造解析をして病気対策をするとき、遺伝子コードのパターンマッチにパソコンを使うとか、本当はそういうプログラム書けたらなと思ったり、

            return outBit;
        }

        public Bitmap standard_deviation_filter(Bitmap b1,Bitmap b2){
            Color C2;
            Bitmap outBit;
            double tR, tG, tB;
            int tR1,tG1,tB1;
            pict_RGB_And_Deviation aveDev1 = new pict_RGB_And_Deviation(b1);
            pict_RGB_And_Deviation aveDev2 = new pict_RGB_And_Deviation(b2);
            
            outBit = new Bitmap(b2.Width, b2.Height);

            for (int i = 0; i < b2.Width; i++)
            {
                for (int j = 0; j < b2.Height; j++)
                {
                    C2=b2.GetPixel(i,j);
                    //tR = ((C2.R - aveDev2.aveR) / aveDev2.devR) * aveDev1.devR + aveDev1.aveR;
                    //tG = (C2.G - aveDev2.aveG) / aveDev2.devG * aveDev1.devG + aveDev1.aveG;
                    //tB = (C2.B - aveDev2.aveB) / aveDev2.devB * aveDev1.devB + aveDev1.aveB;
                    tR = ((C2.R - aveDev2.aveR) / aveDev2.devR) * ((C2.R - aveDev2.aveR) / aveDev2.devR)  * aveDev1.devR + aveDev1.aveR;
                    tG = ((C2.G - aveDev2.aveG) / aveDev2.devG) * ((C2.G - aveDev2.aveG) / aveDev2.devG)  * aveDev1.devG + aveDev1.aveG;
                    tB = ((C2.B - aveDev2.aveB) / aveDev2.devB) * ((C2.B - aveDev2.aveB) / aveDev2.devB)  * aveDev1.devB + aveDev1.aveB;

                    //tR =((C2.R - aveDev2.aveR) / aveDev2.devR) *((C2.R - aveDev2.aveR) / aveDev2.devR) * aveDev1.devR + aveDev1.aveR;
                    //tG =((C2.G - aveDev2.aveG) / aveDev2.devG) *((C2.G - aveDev2.aveG) / aveDev2.devG) * aveDev1.devG + aveDev1.aveG;
                    //tB =((C2.B - aveDev2.aveB) / aveDev2.devB) *((C2.B - aveDev2.aveB) / aveDev2.devB) * aveDev1.devB + aveDev1.aveB;
                    
                    tR1 =cutNum(0, 255,(int) Math.Floor(tR));
                    tG1 =cutNum(0, 255,(int) Math.Floor(tG));
                    tB1 =cutNum(0, 255,(int) Math.Floor(tB));
                    outBit.SetPixel(i,j,Color.FromArgb(tR1,tG1,tB1));

                }
            }
            //生物の遺伝子構造解析をして病気対策をするとき、遺伝子コードのパターンマッチにパソコンを使うとか、本当はそういうプログラム書けたらなと思ったり、

                return outBit; 
        }






        public pictFilter(Bitmap b1, ExampleCallback callbackDelegate,PictureBox p1)
        {
            this.pictIn=b1; 
            h = 0;
            w = 0;
            callback = callbackDelegate;
            lastPict = p1; 
        }




        private int cutNum(int min, int max, int t)
        {
            if (t < min)
            {
                t = min;
            }
            if (t > max)
            {
                t = max;
            }
            return t;
        }

    }
    public class pict_RGB_And_Deviation
    {
        public double aveR, aveG, aveB;
        public double devR, devG, devB;
        public pict_RGB_And_Deviation(double inAveR, double inAveG, double inAveB, double inDevR, double inDevG, double inDevB)
        {
            aveR = inAveR;
            aveG = inAveG;
            aveB = inAveB;
            devR = inDevR;
            devG = inDevG;
            devB = inDevB;
        }
        public pict_RGB_And_Deviation(Bitmap b1)
        {
            Color C1;
            double countPictSize;
            for (int i = 0; i < b1.Width; i++)
            {
                for (int j = 0; j < b1.Height; j++)
                {
                    C1 = b1.GetPixel(i, j);
                    aveR += (double)C1.R;
                    aveG += (double)C1.G;
                    aveB += (double)C1.B;
                }
            }
            countPictSize = b1.Width * b1.Height;
            aveR /= countPictSize;
            aveG /= countPictSize;
            aveB /= countPictSize;
            for (int i = 0; i < b1.Width; i++)
            {
                for (int j = 0; j < b1.Height; j++)
                {
                    C1 = b1.GetPixel(i, j);
                    devR += ((double)C1.R - aveR) * ((double)C1.R - aveR);
                    devG += ((double)C1.G - aveG) * ((double)C1.G - aveG);
                    devB += ((double)C1.B - aveB) * ((double)C1.B - aveB);
                }
            }
            if (countPictSize > 1)
            {
                countPictSize--;
            }
            else
            {
                countPictSize = 1;
            }

            devR = Math.Sqrt(devR / countPictSize);
            devG = Math.Sqrt(devG / countPictSize);
            devB = Math.Sqrt(devB / countPictSize);
        }
    }

}