public void TestCombineAllSame()
{
string resourcePath = "Freedom35.ImageProcessing.Tests.Resources.clock.bmp";
// Load source image
using Image sourceImage = TestImage.FromResource(resourcePath);
Assert.IsNotNull(sourceImage);
using Image sourceImageCopy = TestImage.FromResource(resourcePath);
Assert.IsNotNull(sourceImageCopy);
Image[] imagesToCombine = new Image[]
{
sourceImage,
sourceImageCopy
};
// Combine
Bitmap combinedImage = ImageCombine.All(imagesToCombine);
// Convert for byte comparison
Bitmap sourceBitmap = ImageFormatting.ToBitmap(sourceImage);
// Compare images
Assert.IsTrue(TestImage.Compare(sourceBitmap, combinedImage));
}
public void TestCombineAllWithNegative()
{
string resourcePath = "Freedom35.ImageProcessing.Tests.Resources.clock.bmp";
// Load source image
using Image sourceImage = TestImage.FromResource(resourcePath);
Assert.IsNotNull(sourceImage);
using Image negativeCopy = ImageColor.ToNegative(sourceImage);
Assert.IsNotNull(negativeCopy);
Image[] imagesToCombine = new Image[]
{
sourceImage,
negativeCopy
};
Bitmap combinedImage = ImageCombine.All(imagesToCombine);
// Get bytes for images
byte[] combinedBytes = ImageBytes.FromImage(combinedImage);
// Just check first row of bytes has been combined
for (int i = 0; i < combinedImage.Width; i++)
{
Assert.AreEqual(byte.MaxValue, combinedBytes[i]);
}
int pixelDepth = 3;
int stride = 1056;
int width = 1053;
int height = combinedImage.Height;
int limit = combinedBytes.Length - 4;
// Compare combined bytes excluding stride padding
for (int y = 0; y < height; y++)
{
int offset = y * stride;
for (int x = 0; x < width; x += pixelDepth)
{
int i = offset + x;
if (i < limit)
{
Assert.AreEqual(byte.MaxValue, combinedBytes[i]);
}
else
{
break;
}
}
}
}
public void TestCombineAllMixedColor()
{
using Image colorImage = TestImage.FromResource("Freedom35.ImageProcessing.Tests.Resources.clock.bmp");
Assert.IsNotNull(colorImage);
using Image bwImage = TestImage.FromResource("Freedom35.ImageProcessing.Tests.Resources.clock-bw.bmp");
Assert.IsNotNull(bwImage);
Image[] imagesToCombine = new Image[]
{
colorImage,
bwImage
};
Assert.ThrowsException <ArgumentException>(() => ImageCombine.All(imagesToCombine));
}
public void TestCombineAllOne()
{
using Image sourceImage = TestImage.FromResource("Freedom35.ImageProcessing.Tests.Resources.clock.bmp");
Assert.IsNotNull(sourceImage);
Image[] imagesToCombine = new Image[]
{
sourceImage
};
// Combine
Bitmap combinedBitmap = ImageCombine.All(imagesToCombine);
// Convert for byte comparison
byte[] sourceBytes = ImageBytes.FromImage(sourceImage);
byte[] combinedBytes = ImageBytes.FromImage(combinedBitmap);
// Should return the same image when only combining one
for (int i = 0; i < sourceImage.Width; i++)
{
Assert.AreEqual(sourceBytes[i], combinedBytes[i]);
}
}
public void TestCombineAllNone()
{
Bitmap combinedImage = ImageCombine.All(Array.Empty <Image>());
Assert.IsNull(combinedImage);
}
