public void EncodeImage_Theory(string fileName)
{
string file = Path.Combine(Util.ArtifactsPath, fileName);
string outFile = Path.Combine(Util.ArtifactsDataPath, fileName + ".djvu");
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(file))
{
bmp.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
int width = bmp.Width;
int height = bmp.Height;
var pixMap = PixelMapFromBitmap(bmp);
var map = new InterWavePixelMapEncoder();
map.InitializeEncoder(pixMap, null, YCrCbMode.Full);
int nchunks = 4;
int[] slices = new int[] { 74, 90, 98, 103 };
//float[] decibel = new float[] { 5.0f, 10.0f, 15.0f, 20.0f };
InterWaveEncoderSettings[] settings = new InterWaveEncoderSettings[nchunks];
if (fileName != "")
{
for (int i = 0; i < nchunks; i++)
{
settings[i] = new InterWaveEncoderSettings
{
Slices = slices[i]
};
}
}
//else
//{
// for (int i = 0; i < nchunks; i++)
// {
// settings[i] = new InterWaveEncoderSettings
// {
// Decibels = decibel[i]
// };
// }
//}
DjvuFormElement form = null;
using (MemoryStream stream = new MemoryStream())
using (IDjvuWriter writer = new DjvuWriter(stream))
form = map.EncodeImage(writer, nchunks, settings);
using (IDjvuWriter writer = new DjvuWriter(outFile))
form.WriteData(writer);
using (DjvuDocument doc = new DjvuDocument(outFile))
{
IDjvuPage page = doc.Pages[0];
PM44Form pageForm = (PM44Form)page.PageForm;
Assert.Equal(nchunks, pageForm.Children.Count);
Assert.NotNull(form);
Assert.Equal(nchunks, form.Children.Count);
Assert.IsType <PM44Form>(form);
for (int i = 0; i < form.Children.Count; i++)
{
var c = form.Children[i];
Assert.NotNull(c);
Assert.IsType <PM44Chunk>(c);
PM44Chunk chunk = (PM44Chunk)c;
Assert.NotNull(chunk.ChunkData);
if (chunk.ChunkData.Length >= 2)
{
Assert.Equal(i, chunk.ChunkData[0]);
Assert.Equal(slices[i] - (i == 0 ? 0 : slices[i - 1]), chunk.ChunkData[1]);
if (i == 0)
{
Assert.Equal(1, chunk.ChunkData[2]);
Assert.Equal(2, chunk.ChunkData[3]);
int widthTest = chunk.ChunkData[4] << 8;
widthTest |= chunk.ChunkData[5];
Assert.Equal(bmp.Width, widthTest);
int heightTest = chunk.ChunkData[6] << 8;
heightTest |= chunk.ChunkData[7];
Assert.Equal(bmp.Height, heightTest);
}
}
}
}
}
}
public void EncodeImage_Theory(string fileName)
{
string file = Path.Combine(Util.ArtifactsPath, fileName);
string outFile = Path.Combine(Util.ArtifactsDataPath, fileName + ".djvu");
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(file))
{
bmp.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
int width = bmp.Width;
int height = bmp.Height;
IPixelMap pixMap = PixelMapFromBitmap(bmp);
var map = new InterWavePixelMapEncoder();
map.InitializeEncoder(pixMap, null, YCrCbMode.Full);
const int nchunks = 4;
int[] slices = new int[] { 74, 90, 98, 103 };
//float[] decibel = new float[] { 5.0f, 10.0f, 15.0f, 20.0f };
InterWaveEncoderSettings[] settings = new InterWaveEncoderSettings[nchunks];
if (fileName != "")
{
for (int i = 0; i < nchunks; i++)
{
settings[i] = new InterWaveEncoderSettings {
Slices = slices[i]
};
}
}
//else
//{
// for (int i = 0; i < nchunks; i++)
// {
// settings[i] = new InterWaveEncoderSettings
// {
// Decibels = decibel[i]
// };
// }
//}
DjvuFormElement form = null;
using (MemoryStream stream = new MemoryStream())
using (IDjvuWriter writer = new DjvuWriter(stream))
{
form = map.EncodeImage(writer, nchunks, settings);
}
using (IDjvuWriter writer = new DjvuWriter(outFile))
{
form.WriteData(writer);
}
using (DjvuDocument doc = new DjvuDocument(outFile))
{
IDjvuPage page = doc.Pages[0];
PM44Form pageForm = (PM44Form)page.PageForm;
if (nchunks != pageForm.Children.Count)
{
Assert.True(false);
}
if (nchunks != form.Children.Count)
{
Assert.True(false);
}
Assert.IsType <PM44Form>(form);
for (int i = 0; i < nchunks; i++)
{
IDjvuNode c = form.Children[i];
if (c == null)
{
Assert.True(false);
}
byte[] chunkDataBuffer = null;
if (!(c is PM44Chunk chunk))
{
Assert.True(false);
}
public void EncodeImageTest003()
{
string file = Path.Combine(Util.ArtifactsPath, "block001C.png");
string outFile = Path.Combine(Util.ArtifactsDataPath, "block001C.png.djvu");
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(file))
{
bmp.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipX);
int width = bmp.Width;
int height = bmp.Height;
var pixMap = PixelMapFromBitmap(bmp);
var map = new InterWavePixelMapEncoder();
map._CrCbDelay = 0;
map.InitializeEncoder(pixMap, null, YCrCbMode.Full);
int nchunks = 4;
int[] slices = new int[] { 111, 152, 184, 200 };
InterWaveEncoderSettings[] settings = new InterWaveEncoderSettings[nchunks];
for (int i = 0; i < nchunks; i++)
{
settings[i] = new InterWaveEncoderSettings
{
Slices = slices[i]
};
}
map._dBFrac = 10.0f;
DjvuFormElement form = null;
using (MemoryStream stream = new MemoryStream())
using (IDjvuWriter writer = new DjvuWriter(stream))
form = map.EncodeImage(writer, nchunks, settings);
using (IDjvuWriter writer = new DjvuWriter(outFile))
form.WriteData(writer);
Assert.NotNull(form);
Assert.Equal(nchunks, form.Children.Count);
Assert.IsType <PM44Form>(form);
for (int i = 0; i < form.Children.Count; i++)
{
var c = form.Children[i];
Assert.NotNull(c);
Assert.IsType <PM44Chunk>(c);
PM44Chunk chunk = (PM44Chunk)c;
Assert.NotNull(chunk.ChunkData);
if (chunk.ChunkData.Length >= 2)
{
Assert.Equal(i, chunk.ChunkData[0]);
if (i == 0)
{
Assert.Equal(1, chunk.ChunkData[2]);
Assert.Equal(2, chunk.ChunkData[3]);
int widthTest = chunk.ChunkData[4] << 8;
widthTest |= chunk.ChunkData[5];
Assert.Equal(bmp.Width, widthTest);
int heightTest = chunk.ChunkData[6] << 8;
heightTest |= chunk.ChunkData[7];
Assert.Equal(bmp.Height, heightTest);
}
}
}
//using (DjvuDocument doc = new DjvuDocument(outFile))
//{
// IDjvuPage page = doc.Pages[0];
// IDjvuElement pageForm = page.PageForm;
// Assert.Equal(nchunks, pageForm.Children.Count);
//}
}
}