public static Color[] ReadImage(string path, int xSamples, int ySamples)
{
var info = FromPath(path);
var image = Image.ReadFromFile(info);
return(Image.Pixels(image, xSamples, ySamples).SelectMany(x => x).ToArray());
}
public void Image_Write()
{
var tmp = GetNewFileNameOnTempPath("png");
using (var bmp = new Bitmap(Path.Combine(TestDirectory, @"core\files\images\testImage.png")))
{
Image.WriteToFile(tmp, bmp);
using (var newBmp = new Bitmap(tmp))
{
Assert.AreEqual(Image.Pixels(bmp), Image.Pixels(newBmp));
}
}
}
public void Image_Pixels()
{
foreach (var file in GetTestImageFiles())
{
using (var bmp = new Bitmap(file))
{
var allPixels = Image.Pixels(bmp);
Assert.AreEqual(bmp.Height, allPixels.Length);
Assert.AreEqual(bmp.Width, allPixels[0].Length);
const int samples = 40;
var samplePixels = Image.Pixels(bmp, xSamples: samples, ySamples: samples);
Assert.AreEqual(samples, samplePixels.Length);
Assert.AreEqual(samples, samplePixels[0].Length);
}
}
}
public void Image_FromPixels()
{
const int size = 50;
var rectPixels =
Enumerable.Repeat(Enumerable.Repeat(Color.ByColor(System.Drawing.Color.Blue), size).ToArray(), size)
.ToArray();
var bmpFromRect = Image.FromPixels(rectPixels);
Assert.AreEqual(size, bmpFromRect.Width);
Assert.AreEqual(size, bmpFromRect.Height);
var flatPixels = rectPixels.SelectMany(x => x).ToArray();
var bmpFromFlat = Image.FromPixels(flatPixels, size, size);
Assert.AreEqual(size, bmpFromFlat.Width);
Assert.AreEqual(size, bmpFromFlat.Height);
Assert.AreEqual(Image.Pixels(bmpFromRect), Image.Pixels(bmpFromFlat));
}
