/// <summary>
/// Performs nearest-neighbor resizing on a LAB bitmap.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
private BitmapLAB ResizeNearestNeighborLAB(BitmapLAB input)
{
// Calculate horizontal ratio of input:output
double rX = input.Width / (float)Math.Max(this.TargetSize.Width, 1);
// Calculate vertical ratio of input:output
double rY = input.Height / (float)Math.Max(this.TargetSize.Height, 1);
if (rX == 0.0 && rY == 0.0)
{
return(input); // No scaling necessary.
}
BitmapLAB output = new BitmapLAB(this.TargetSize);
for (int y = 0; y < this.TargetSize.Height; y++)
{
for (int x = 0; x < this.TargetSize.Width; x++)
{
output[x, y] = input[(int)Math.Floor(x * rX), (int)Math.Floor(y * rY)];
}
}
return(output);
}
protected override Frame RenderFrame(long frameIndex)
{
var frame = this.Input.GetFrame(frameIndex);
for (int i = 0; i < frame.Video.Count; i++)
{
var bitmap = frame.Video[i];
if (bitmap is BitmapCMYK)
{
BitmapCMYK input = (BitmapCMYK)bitmap;
BitmapCMYK output = new BitmapCMYK((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
{
for (int x = 0; x < input.Width; x++) // Rows
{
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
{
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
{
output[a, b] = input[x, y];
}
}
}
}
frame.Video[i] = output;
}
else if (bitmap is BitmapLAB)
{
BitmapLAB input = (BitmapLAB)bitmap;
BitmapLAB output = new BitmapLAB((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
{
for (int x = 0; x < input.Width; x++) // Rows
{
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
{
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
{
output[a, b] = input[x, y];
}
}
}
}
frame.Video[i] = output;
}
else if (bitmap is BitmapRGB)
{
BitmapRGB input = (BitmapRGB)bitmap;
BitmapRGB output = new BitmapRGB((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
{
for (int x = 0; x < input.Width; x++) // Rows
{
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
{
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
{
output[a, b] = input[x, y];
}
}
}
}
frame.Video[i] = output;
}
else if (bitmap is BitmapYCC)
{
BitmapYCC input = (BitmapYCC)bitmap;
BitmapYCC output = new BitmapYCC((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
{
for (int x = 0; x < input.Width; x++) // Rows
{
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
{
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
{
output[a, b] = input[x, y];
}
}
}
}
frame.Video[i] = output;
}
}
return(frame);
}
protected override Frame RenderFrame(long frameIndex)
{
var frame = this.Input.GetFrame(frameIndex);
for (int i = 0; i < frame.Video.Count; i++)
{
var bitmap = frame.Video[i];
if (bitmap is BitmapCMYK)
{
BitmapCMYK input = (BitmapCMYK)bitmap;
BitmapCMYK output = new BitmapCMYK((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
for (int x = 0; x < input.Width; x++) // Rows
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++,j++)
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
output[a, b] = input[x, y];
frame.Video[i] = output;
}
else if (bitmap is BitmapLAB)
{
BitmapLAB input = (BitmapLAB)bitmap;
BitmapLAB output = new BitmapLAB((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
for (int x = 0; x < input.Width; x++) // Rows
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
output[a, b] = input[x, y];
frame.Video[i] = output;
}
else if (bitmap is BitmapRGB)
{
BitmapRGB input = (BitmapRGB)bitmap;
BitmapRGB output = new BitmapRGB((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
for (int x = 0; x < input.Width; x++) // Rows
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
output[a, b] = input[x, y];
frame.Video[i] = output;
}
else if (bitmap is BitmapYCC)
{
BitmapYCC input = (BitmapYCC)bitmap;
BitmapYCC output = new BitmapYCC((int)(input.Width * this.ScaleFactor), (int)(input.Height * this.ScaleFactor));
for (int y = 0; y < input.Height; y++) // Columns
for (int x = 0; x < input.Width; x++) // Rows
for (int b = (int)(y * this.ScaleFactor), j = 0; j < this.ScaleFactor; b++, j++)
for (int a = (int)(x * this.ScaleFactor), k = 0; i < this.ScaleFactor; a++, k++)
output[a, b] = input[x, y];
frame.Video[i] = output;
}
}
return frame;
}
/// <summary>
/// Performs nearest-neighbor resizing on a LAB bitmap.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
private BitmapLAB ResizeNearestNeighborLAB(BitmapLAB input)
{
// Calculate horizontal ratio of input:output
double rX = input.Width / (float)Math.Max(this.TargetSize.Width, 1);
// Calculate vertical ratio of input:output
double rY = input.Height / (float)Math.Max(this.TargetSize.Height, 1);
if (rX == 0.0 && rY == 0.0)
return input; // No scaling necessary.
BitmapLAB output = new BitmapLAB(this.TargetSize);
for (int y = 0; y < this.TargetSize.Height; y++)
for (int x = 0; x < this.TargetSize.Width; x++)
output[x, y] = input[(int)Math.Floor(x * rX), (int)Math.Floor(y * rY)];
return output;
}