public CropConfiguration(
AspectRatio aspectRatio,
CropStrategy cropStrategy,
Option <Color> backgroundColor)
{
AspectRatio = aspectRatio;
CropStrategy = cropStrategy;
BackgroundColor = backgroundColor;
}
public void Initialize()
{
switch (function)
{
case "Resize":
//this.strategy = new ResizedStrategy(this.x, this.y, this.width, this.height);
ResizeKARStrategy rs = new ResizeKARStrategy(this.width, this.height);
rs.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
case "PNG":
ConvertPNGStrategy cs1 = new ConvertPNGStrategy();
cs1.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
case "JPEG":
ConvertJPGStrategy cs2 = new ConvertJPGStrategy();
cs2.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
case "GIF":
ConvertGIFStrategy cs3 = new ConvertGIFStrategy();
cs3.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
case "Skew":
SkewStrategy ss = new SkewStrategy(this.x1, this.x2, this.x3, this.x4, this.y1, this.y2, this.y3, this.y4);
ss.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
case "Crop":
CropStrategy crs = new CropStrategy(this.width, this.height);
crs.Edit(this.sourcePath, this.destinationPath);
Console.WriteLine("Done!");
Console.WriteLine();
break;
}
}
public Rectangle FindCropRectangle(Bitmap bmp, CropStrategy CropStrategy, string txt = "")
{
var imageRawData = new Dictionary <int, List <double> >();
int width = bmp.Width;
int height = bmp.Height;
//read in bitmpa data row by row into imageRawData
var leftMostIndex = 0;
var rightMostIndex = 0;
for (int i = 0; i < height; i++)
{
var rowRawData = new List <double>();
for (int j = 0; j < width; j++)
{
var pixel = bmp.GetPixel(j, i);
var tmp = (pixel.R == 255) ? 0 : 1;
if (tmp == 1)
{
if (leftMostIndex > j || leftMostIndex == 0)
{
leftMostIndex = j;
}
if (rightMostIndex < j || rightMostIndex == 0)
{
rightMostIndex = j;
}
}
rowRawData.Add(tmp);
}
imageRawData.Add(i, rowRawData);
}
//find the rectangle
var darkRows = imageRawData.Where(x => x.Value.Contains(1));
var firstDarkRowIndex = darkRows.First().Key;
var lastDarkRowIndex = darkRows.Last().Key;
//rightMostIndex - leftMostIndex
var letterWidth = rightMostIndex - leftMostIndex;
var letterHeight = lastDarkRowIndex - firstDarkRowIndex;
//the right index and left index is same, set the rectangle width to 1
letterWidth = letterWidth == 0 ? 1 : letterWidth + 1;
letterHeight = letterHeight == 0 ? 1 : letterHeight + 1;
//modify the leftMostIndex and firstDarkRowIndex
leftMostIndex = leftMostIndex > 1 ? leftMostIndex : leftMostIndex - 1;
firstDarkRowIndex = firstDarkRowIndex > 1 ? firstDarkRowIndex : firstDarkRowIndex - 1;
Rectangle edgeRetangle = new Rectangle();
if (CropStrategy == CropStrategy.CropToEdge)
{
edgeRetangle = new Rectangle(leftMostIndex, firstDarkRowIndex, letterWidth, letterHeight);
}
else if (CropStrategy == CropStrategy.CropHeightOnly)
{
edgeRetangle = new Rectangle(0, firstDarkRowIndex, width, letterHeight);
}
else if (CropStrategy == CropStrategy.CropWidthOnly)
{
edgeRetangle = new Rectangle(leftMostIndex, 0, letterWidth, height);
}
return(edgeRetangle);
}
public NormalizeDecorator(CropStrategy cropStrategy)
{
CropStrategy = cropStrategy;
ImageProcessor = new ImageProcessor();
}
