Apakah ini berlaku juga untuk membaca image .tiff uncompress / raw data dari mesin x-ray??
Saya mendapatkan script seperti ini, gambar sudah mulai terlihat namun belum sempurna, apakah anda bisa membantu saya untuk menyempurnakannya?
Berikut contoh scriptnya :
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Imaging;
using System.IO;
namespace ImageDraw
{
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Panel panelImage;
private System.Windows.Forms.Button bnOpenImage;
private ArrayList pixels16; // To hold the pixel data
Graphics g; // Graphics of the panel object
int width, height; // Dimensions of the bitmap
Bitmap bmp; // Bitmap object
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
pixels16 = new ArrayList();
g = panelImage.CreateGraphics();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.bnOpenImage = new System.Windows.Forms.Button();
this.panelImage = new System.Windows.Forms.Panel();
this.SuspendLayout();
//
// bnOpenImage
//
this.bnOpenImage.Location = new System.Drawing.Point(8, 8);
this.bnOpenImage.Name = "bnOpenImage";
this.bnOpenImage.Size = new System.Drawing.Size(79, 28);
this.bnOpenImage.TabIndex = 0;
this.bnOpenImage.Text = "Proses";
this.bnOpenImage.Click += new System.EventHandler(this.bnOpenImage_Click);
//
// panelImage
//
this.panelImage.AutoSize = true;
this.panelImage.Location = new System.Drawing.Point(8, 45);
this.panelImage.Name = "panelImage";
this.panelImage.Size = new System.Drawing.Size(608, 475);
this.panelImage.TabIndex = 2;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(624, 530);
this.Controls.Add(this.panelImage);
this.Controls.Add(this.bnOpenImage);
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void bnOpenImage_Click(object sender, System.EventArgs e)
{
pixels16.Clear();
OpenFileDialog ofd = new OpenFileDialog();
//ofd.Filter = "All Files(*.*)|*.*";
//ofd.ShowDialog();
if ("Gambar format TIFF\\tes.tiff".Length > 0)
{
ReadImageFile("Gambar format TIFF\\tes.tiff");
CreateBitmap();
Invalidate();
}
ofd.Dispose();
}
private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
if( pixels16.Count > 0 )
g.DrawImage(bmp, 0, 0);
}
private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
bmp.Dispose();
pixels16.Clear();
}
// Read the image file, and populate the array list pixels16.
private void ReadImageFile(string fileName)
{
BinaryReader br = new BinaryReader(File.Open(fileName, FileMode.Open));
ushort pixShort;
int i;
long iTotalSize = br.BaseStream.Length;
//for( i = 0; i < iTotalSize; i += 2 )
for (i = 0; i < iTotalSize; i += 2)
{
pixShort = (ushort)(br.ReadInt16());
pixels16.Add(pixShort);
}
br.Close();
width = (int)((Math.Sqrt(pixels16.Count)) - 16);
height = width - 16;
// Create the Bitmap object and populate its pixel data with the stored pixel values.
private void CreateBitmap()
{
//bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
BitmapData bmd = bmp.LockBits(new Rectangle(0, 0, width, height),
System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
// This 'unsafe' part of the code populates the bitmap bmp with data stored in pixel16.
// It does so using pointers, and therefore the need for 'unsafe'.
unsafe
{
//int pixelSize = 3;
int pixelSize = 3;
int i, j, j1, i1;
byte b;
ushort sVal;
double lPixval;
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Height;
for (j = 0; j < bmd.Width; ++j)
{
sVal = (ushort)(pixels16[i1 + j]);
//lPixval = (sVal / 255.0); // Convert to a 255 value range
lPixval = (sVal/255);
//if( lPixval > 255 ) lPixval = 255;
if (lPixval > 255) lPixval = 65535;
if( lPixval < 0 ) lPixval = 0;
b = (byte)(lPixval);
j1 = j * pixelSize;
row[j1] = b; // Red
row[j1 + 1] = b; // Green
row[j1 + 2] = b; // Blue
}
}
}
bmp.UnlockBits(bmd);
}
}
}
Bagaimana menampilkan images .tiff(uncompressed) / raw data dengan C#?
