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Snippet from a WPF app that produces an image where every pixel is a different color.
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows;
namespace GenerateMultiColorImages
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var imgHeight = 128;
var imgWidth = 768;
var bmp = new Bitmap(imgWidth, imgHeight);
var totalColors = 256*256*256;
var colorRequired = imgHeight * imgWidth;
var r = 0;
var g = 0;
var b = 0;
var skip = int.Parse((totalColors/colorRequired).ToString()) - 1;
for (var x = 0; x < imgWidth; x++)
{
for (var y = 0; y < imgHeight; y++)
{
bmp.SetPixel(x, y, Color.FromArgb(r, g, b));
b += skip;
if (b > 255)
{
b = b - 255;
g += 1;
}
if (g > 255)
{
g = g - 255;
r += 1;
}
}
}
bmp.Save("generated.png", ImageFormat.Png);
}
}
}
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