public void TestGetPixel()
{
var thisImage = new NetImage();
thisImage.ImageFormat = NetImage.ImageFormats.PNG;
// No image data yet, value returned is zero
var pixelColor = thisImage.GetPixel(640, 480);
Assert.AreEqual(0, pixelColor);
// Initialize image
thisImage.BackgroundColor = NetImage.DotNETARGBToVBScriptRGB(0x32FF0000);
thisImage.MaxX = 1024;
thisImage.MaxY = 768;
pixelColor = thisImage.GetPixel(640, 480);
// Backgrounds can only be solid colors
Assert.AreEqual(System.Drawing.Color.FromArgb(255, 255, 0, 0).ToArgb(), NetImage.VBScriptRGBToDotNETARGB(pixelColor));
// Verify color change
thisImage.BackgroundColor = NetImage.DotNETARGBToVBScriptRGB(System.Drawing.Color.FromArgb(50, 0, 0, 255).ToArgb());
thisImage.ClearImage();
pixelColor = thisImage.GetPixel(640, 480);
Assert.AreEqual(System.Drawing.Color.FromArgb(255, 0, 0, 255).ToArgb(), NetImage.VBScriptRGBToDotNETARGB(pixelColor));
}
public void TestClearImage()
{
const string outputFilePath = "../../Output/ClearImage.png";
var thisImage = new NetImage();
thisImage.LoadImage("../../Resources/1024x768-white.png");
thisImage.ImageFormat = NetImage.ImageFormats.PNG;
thisImage.Filename = outputFilePath;
thisImage.BackgroundColor = Color.FromArgb(0, 0, 0).ToArgb();
thisImage.ClearImage();
thisImage.AutoClear = false;
thisImage.SaveImage();
var clearedImage = new NetImage();
clearedImage.LoadImage("../../Resources/1024x768-black.png");
var modifiedImage = new Bitmap(thisImage.RawNetImage);
var comparisonImage = new Bitmap(clearedImage.RawNetImage);
var thisConverter = new ImageConverter();
var modifiedImageBytes = new byte[0];
var comparisonImageBytes = new byte[0];
modifiedImageBytes = (byte[])thisConverter.ConvertTo(modifiedImage, modifiedImageBytes.GetType());
comparisonImageBytes = (byte[])thisConverter.ConvertTo(comparisonImage, comparisonImageBytes.GetType());
var hasher = new SHA256Managed();
byte[] modifiedImageHash = hasher.ComputeHash(modifiedImageBytes);
byte[] comparisonImageHash = hasher.ComputeHash(comparisonImageBytes);
bool isMatch = true;
for (int i = 0; i < modifiedImageHash.Length && i < comparisonImageHash.Length && isMatch; i++)
{
if (modifiedImageHash[i] != comparisonImageHash[i])
{
isMatch = false;
}
}
Assert.IsTrue(isMatch);
}
public void TestPropertyRawNetImage()
{
var thisImage = new NetImage();
thisImage.BackgroundColor = System.Drawing.Color.FromArgb(255, 0, 0, 0).ToArgb();
thisImage.MaxX = 1024;
thisImage.MaxY = 768;
thisImage.ClearImage();
if (thisImage.RawNetImage == null)
{
Assert.Fail();
}
var imageSize = thisImage.RawNetImage.Size;
var pixelColor = ((Bitmap)thisImage.RawNetImage).GetPixel(0, 0);
Assert.AreEqual(1024, imageSize.Width);
Assert.AreEqual(768, imageSize.Height);
Assert.AreEqual(System.Drawing.Color.FromArgb(255, 0, 0, 0), pixelColor);
}