private void ReturnsExpectedValueForKnownInput(double expectedValue, double ratio, IColorSpace a, IColorSpace b)
{
var target = new CmcComparison(ratio);
var actualValue = a.Compare(b, target);
Assert.IsTrue(expectedValue.BasicallyEqualTo(actualValue), expectedValue + " != " + actualValue);
}
public void UpdateDominoes()
{
IColorSpaceComparison comp;
switch (m_regression_mode)
{
case 0: comp = new CmcComparison(); break;
case 1: comp = new Cie1976Comparison(); break;
case 2: comp = new Cie94Comparison(); break;
default: comp = new CieDe2000Comparison(); break;
}
float scaling_x = (SourceImage.Width - 1) / size_x;
float scaling_y = (SourceImage.Height - 1) / size_y;
if (!m_allow_stretch)
{
if (scaling_x > scaling_y)
{
scaling_x = scaling_y;
}
else
{
scaling_y = scaling_x;
}
}
// fix transparency: if image is transparent, background appears black
Bitmap notransparency = new Bitmap(SourceImage.Width, SourceImage.Height);
Graphics temp = Graphics.FromImage(notransparency);
temp.Clear(Color.White);
System.Drawing.Imaging.ImageAttributes Att = new System.Drawing.Imaging.ImageAttributes();
Att.SetWrapMode(System.Drawing.Drawing2D.WrapMode.TileFlipXY);
temp.DrawImage(SourceImage, new Rectangle(0, 0, SourceImage.Width, SourceImage.Height), 0, 0, SourceImage.Width, SourceImage.Height, GraphicsUnit.Pixel, Att);
// image to read from
WriteableBitmap pixelsource = BitmapFactory.ConvertToPbgra32Format(ImageHelper.BitmapToBitmapSource(notransparency));
pixelsource.Lock();
System.Windows.Media.Color[] sourceColors = new System.Windows.Media.Color[shapes.Length];
dominoes = new int[shapes.Length];
if (!calculation_mode)
{
// if source pixel = top left pixel of each domino
for (int i = 0; i < shapes.Length; i++)
{
RectangleF container = shapes[i].GetContainer(scaling_x, scaling_y);
try
{
sourceColors[i] = pixelsource.GetPixel((int)container.X, (int)container.Y);
}
catch (Exception) { }
dominoes[i] = Dithering.Compare(new Rgb()
{
R = sourceColors[i].R, G = sourceColors[i].G, B = sourceColors[i].B
}.To <Lab>(), comp, lab_colors, 0);
}
}
else
{
// if source pixel is average of region
for (int i = 0; i < shapes.Length; i++)
{
RectangleF container = shapes[i].GetContainer(scaling_x, scaling_y);
int r = 0, g = 0, b = 0;
int counter = 0;
// for loop: each container
for (float x_iterator = container.X; x_iterator < container.X + container.Width; x_iterator++)
{
for (float y_iterator = container.Y; y_iterator < container.Y + container.Width; y_iterator++)
{
if (shapes[i].IsInside(new PointF(x_iterator, y_iterator), true, scaling_x, scaling_y))
{
System.Windows.Media.Color c = pixelsource.GetPixel((int)x_iterator, (int)y_iterator);
r += c.R;
g += c.G;
b += c.B;
counter++;
}
}
}
sourceColors[i] = System.Windows.Media.Color.FromRgb((byte)(r / counter), (byte)(g / counter), (byte)(b / counter));
// calculates the color of the domino
dominoes[i] = Dithering.Compare(new Rgb()
{
R = sourceColors[i].R, G = sourceColors[i].G, B = sourceColors[i].B
}.To <Lab>(), comp, lab_colors, 0);
}
}
}
public void GenerateField(bool update_filters = false)
{
dominoes = new int[length, height];
System.Drawing.Image i;
if (!update_filters)
{
using (var bmpTemp = new System.Drawing.Bitmap(SourcePath))
{
i = new System.Drawing.Bitmap(bmpTemp);
}
}
else
{
i = ImageHelper.BitmapImageToBitmap(filters.preview);
}
if (length < 2)
{
m_length = 2;
}
if (height < 2)
{
m_height = 2;
}
System.Drawing.Bitmap thumb = new System.Drawing.Bitmap(length, height);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(thumb);
graphics.Clear(System.Drawing.Color.White);
if (ResizeMode == 0)
{
graphics.InterpolationMode = InterpolationMode.NearestNeighbor;
}
if (ResizeMode == 1)
{
graphics.InterpolationMode = InterpolationMode.Bicubic;
}
if (ResizeMode == 2)
{
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
}
System.Drawing.Imaging.ImageAttributes attr = new System.Drawing.Imaging.ImageAttributes();
System.Drawing.Imaging.ImageAttributes Att = new System.Drawing.Imaging.ImageAttributes();
Att.SetWrapMode(System.Drawing.Drawing2D.WrapMode.TileFlipXY);
graphics.DrawImage(i, new System.Drawing.Rectangle(0, 0, length, height), 0, 0, i.Width, i.Height, System.Drawing.GraphicsUnit.Pixel, Att);
//graphics.DrawImage(i, 0, 0, length, height);
BitmapImage bitmapImage = ImageHelper.BitmapToBitmapImage(thumb);
BitmapSource bitm = new FormatConvertedBitmap(bitmapImage, PixelFormats.Bgr24, null, 0);
WriteableBitmap b = BitmapFactory.ConvertToPbgra32Format(bitm);
IColorSpaceComparison comp;
switch (ColorRegressionMode)
{
case 0: comp = new CmcComparison(); break;
case 1: comp = new Cie1976Comparison(); break;
case 2: comp = new Cie94Comparison(); break;
default: comp = new CieDe2000Comparison(); break;
}
Dithering d;
switch (DiffusionMode)
{
case 0: d = new NoDithering(comp, Colors); break;
case 1: d = new FloydSteinbergDithering(comp, Colors); break;
case 2: d = new JarvisJudiceNinkeDithering(comp, Colors); break;
default: d = new StuckiDithering(comp, Colors); break;
}
dominoes = d.Dither(b, comp);
b.Lock();
}
