public void PixelsShouldBeRedOrGreenOrBlue()
{
BitmapSource bitmapImage;
PixelFormat pf = PixelFormats.Bgra32;
int imageWidth = 200;
int imageHeight = 200;
int rawStride = (imageWidth * pf.BitsPerPixel + 7) / 8;
byte[] rawImage = new byte[rawStride * imageHeight];
Random rnd = new Random();
rnd.NextBytes(rawImage);
bitmapImage = BitmapSource.Create(imageWidth, imageHeight, 96, 96, pf, null, rawImage, rawStride);
ImageProcessingLibrary.ImageProcessing proc = new ImageProcessingLibrary.ImageProcessing();
bitmapImage = proc.ToMainColors(bitmapImage);
int width = bitmapImage.PixelWidth;
int height = bitmapImage.PixelHeight;
WriteableBitmap writeableBitmap = new WriteableBitmap(bitmapImage);
int stride = width * ((writeableBitmap.Format.BitsPerPixel + 7) / 8);
int arraySize = height * stride;
byte[] pixels = new byte[arraySize];
writeableBitmap.CopyPixels(pixels, stride, 0);
int j = 0;
for (int i = 0; i < pixels.Length / 4; ++i)
{
int red = pixels[j];
int green = pixels[j + 1];
int blue = pixels[j + 2];
Assert.IsTrue((red == 0 || red == 255));
Assert.IsTrue((green == 0 || green == 255));
Assert.IsTrue((blue == 0 || blue == 255));
j += 4;
}
}
public void ChangeColors(ApplicationViewModel vm)
{
try
{
if (vm.ImageIsLoaded)
{
ImageProcessingLibrary.ImageProcessing processing = new ImageProcessingLibrary.ImageProcessing();
BitmapSource image = processing.ToMainColors(vm.ImageSource);
vm.ImageSource = image;
vm.Message = $"Success! It took {processing.SecondsElapsedForChangeColors} seconds to change to the main colors";
}
}
catch (Exception ex)
{
vm.Message = "An unexpected error has occurred";
log.Error(ex);
throw;
}
}
public void SaveImage(ApplicationViewModel vm)
{
try
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "JPG|*.jpg|PNG|*.png|BMP|*.bmp";
bool?result = saveFileDialog.ShowDialog();
if (result.GetValueOrDefault())
{
ImageProcessingLibrary.ImageProcessing processing = new ImageProcessingLibrary.ImageProcessing();
processing.SaveImage(vm.ImageSource, saveFileDialog.FileName, saveFileDialog.FilterIndex);
vm.Message = "Saved";
}
}
catch (Exception ex)
{
log.Error(ex);
vm.Message = "An unexpected error has occurred";
throw;
}
}
public void LoadImage(ApplicationViewModel vm)
{
try
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "JPG|*.jpg|PNG|*.png|BMP|*.bmp";
bool?result = openFileDialog.ShowDialog();
if (result.GetValueOrDefault())
{
ImageProcessingLibrary.ImageProcessing processing = new ImageProcessingLibrary.ImageProcessing();
vm.ImageSource = processing.LoadImage(openFileDialog.FileName);
vm.Message = "Loaded";
}
}
catch (Exception ex)
{
log.Error(ex);
vm.Message = "An unexpected error has occurred";
throw;
}
}
