Save Text Data In image

• Download Debug_v4_send_codproject.rar - 24.6 KB
• Download source - 21.4 KB
• Download Debug_v4_send_codproject.zip - 25.7 KB

Text Save like this:

Introduction

i try write new string compressor but believe me it is not easy , i try save text in image RGB and move it in Gray but i find is not possible or get more bytes . In any case  i send this code for you. maybe save your time .

1. LoadText(click on com) : you can see your text in image like top image.
2. SaveImage:Click on image,save it.
3. LaodImage(Click on decom):you can save text save in image.

MainClass:

you can use  class  com & decom 

com nbv = new com();
nbv.doCompress(String, String);

Class Decom image

decom nb = new decom();
nb.doDeCompress(String,String);

Background

Using the code

This class put int word in RGB(X1,X2,X3) its less <255 ,Get square root of total letter that indicate size of the image  the value divided by three since each pixel contains 3 letter.

Quote:

Convert the character into ASCII value and add in letters collection

Mixed RGB IN Pixel(R,G,b)

   class com
    {
        public void doCompress(string FileText, string FileImage)
        {

            using (StreamReader sr = File.OpenText(FileText)) 
            // Get text from a .txt file to compress
            {

                var line = ""; // To hold a line of the file
                var R = 0; // To hold 4 letters as Red value
                var G = 0; // To hold 4 letters as Green value
                var B = 0; // To hold 4 letters as Blue value
                var letters = new List<int>(); 
                // To hold the characters of line
                //Read lines one by one from stream reader
                while ((line = sr.ReadLine()) != null)

                {
                    foreach (char ch in line) // Get character from a line
                    {
                        letters.Add(Convert.ToInt16(ch)); 
                        // Convert the character
                        //into ASCII value and add in letters collection
                    }

                    letters.Add(255); // Use 255 as a flag that indicates new line
                    //counter_line++;
                }

               /* Get square root of total letter that indicate size 
                of the image (get the value divided by three since each 
                pixel contains 3 letters*/
                var square = Math.Sqrt(letters.Count / 3);
                /* Get square root of total letter that indicate size 
                 * of the image (get the value divided by three since
                 * each pixel contains 3 letters*/
                square += 1; // Add one value for any exceeds if any
                square = Math.Round(square);
                // Have a BitMap with optimal size that we calculated
                var bmp = new Bitmap((int)square, (int)square);
                var count = 0; // count for letters

                for (int row = 1; row < square; row++) // Indicates row number
                {
                    for (int column = 1; column < square; column++) // Indicate column number
                    {
                        if (count < (letters.Count - 3)) // Check for last pixel
                        {
                            R = letters[count++]; // Assignee a letter in Red value
                            G = letters[count++]; // Assignee a letter in Green value
                            B = letters[count++]; // Assignee a letter in Blue value
                            // Set pixel with the combination of two value
                            bmp.SetPixel(row, column, (Color.FromArgb( R, G, B))); 
                        }
                    }
                }
              
            
                    bmp.Save(FileImage, ImageFormat.Png); //Save the Bitmap and this is the compressed Image Data
         
             
            }
        }

    }
</int>

This class get RGB color list And Convert the character

1. Get Red->Convert the character
2. Get Green->Convert the character
3. Get Blue->Convert the character

   class decom
    {
        public void doDeCompress(string FileImage,string FileText)
        {

            var lettersExtract = new List<int>(); // To hold extracted letters

            var bmp = new Bitmap(Bitmap.FromFile(FileImage)); 
            // Get the Image data to DeCompress

            for (int row = 1; row < bmp.Width; row++) // Indicates row number
            {

                for (int column = 1; column < bmp.Height; column++) 
               // Indicate column number
                {

                    var cr = bmp.GetPixel(row, column); 
                   // Get the pixel of the current row and column

                    lettersExtract.Add(cr.R); 
                   // Get the Red Value and Add in letterExtract collection

                    lettersExtract.Add(cr.G); 
                   // Get the Green Value and Add in letterExtract collection

                    lettersExtract.Add(cr.B); 
                   // Get the Blue Value and Add in letterExtract collection

                }

            }

            using (System.IO.StreamWriter file = new 
            System.IO.StreamWriter(FileText,false,Encoding.Default)) 
                 // Open a text file to extract
            {

                foreach (int write in lettersExtract)
              //Get color value one by one from the letters Extracted
                {
                    if (write == 255) 
              //Condition check for new line since 255 is a flag of new line
                        file.WriteLine("");
                    else
                        file.Write((Char)write); 
              // Write the character in the file by converting 
              //  the color value into   character

                }

            }

        }
    }
</int>

Mix all data in GUI Windows:

i use openFileDialog and saveFileDialog .

• load text in RichTextBoxStream
• load temp image in PictureBox(PictureBoxSizeMode.StretchImage)
• click on image and save it(AppDomain.CurrentDomain.BaseDirectory ,pictureBox.Image.Save(URL) ).

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        static string word;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string Chosen_File = "";
            string name_image_save = AppDomain.CurrentDomain.BaseDirectory.ToString() 
             + "\\" + "compressed.png";  // temp file
            openFileDialog1.InitialDirectory = Application.ExecutablePath.ToString();
            openFileDialog1.Title = "Load text";
            openFileDialog1.Filter = "Text Normal|*.txt|Text INF|*.inf";
            if (openFileDialog1.ShowDialog() != DialogResult.Cancel)
            {
                //richTextBox1
                Chosen_File = openFileDialog1.FileName;
                richTextBox1.LoadFile(Chosen_File, RichTextBoxStreamType.PlainText);
                //-------------- use class 
                com nbv = new com();
                nbv.doCompress(Chosen_File, name_image_save);
                //------------
            }
            pictureBox1.Load(name_image_save);
            pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;

        }

        private void button2_Click(object sender, EventArgs e)
        {

            string Chosen_File = "";
            string name_text_save = AppDomain.CurrentDomain.BaseDirectory.ToString()
             + "\\" + "decompress.txt";
            openFileDialog2.InitialDirectory = Application.ExecutablePath.ToString();
            openFileDialog2.Title = "Load image";
            openFileDialog2.Filter = "Image Normal|*.PNG";
            if (openFileDialog2.ShowDialog() != DialogResult.Cancel)
            {
                //richTextBox1
                Chosen_File = openFileDialog2.FileName;
                pictureBox2.Load(Chosen_File);
                //-------------------
                decom nb = new decom();
                nb.doDeCompress(Chosen_File, name_text_save);
                //--------------------
                pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;
                richTextBox2.LoadFile(name_text_save, RichTextBoxStreamType.PlainText);
            }
               
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {
            try // control error
            {
                string Chosen_File = "";
                string name_image_save = AppDomain.CurrentDomain.BaseDirectory.ToString() 
                + "\\" + "compressed.png";
                saveFileDialog1.InitialDirectory = Application.ExecutablePath.ToString();
                saveFileDialog1.Title = "Save Image";
                saveFileDialog1.Filter = "Image Normal|*.PNG";
                if (saveFileDialog1.ShowDialog() != DialogResult.Cancel)
                {
                    //richTextBox1
                    Chosen_File = saveFileDialog1.FileName;

                    pictureBox1.Image.Save(Chosen_File);
                    MessageBox.Show("Image Save it");

                }
            }
            catch
            {
                MessageBox.Show("not find any image in pictureBox1");
            }
        }

    }
}